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.MuiTreeItem-iconContainer{margin-right:4px;width:15px;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-shrink:0;-ms-flex-negative:0;flex-shrink:0;-webkit-box-pack:center;-ms-flex-pack:center;-webkit-justify-content:center;justify-content:center;}.css-khel7y .MuiTreeItem-iconContainer svg{font-size:18px;}.css-khel7y .MuiTreeItem-label{width:100%;min-width:0;padding-left:4px;position:relative;font-size:1rem;line-height:1.5rem;font-family:"Helvetica Neue","sans-serif";font-weight:400;font-style:normal;color:#666666;}</style><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><style data-emotion="css znl8a3">.css-znl8a3{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:row;-ms-flex-direction:row;flex-direction:row;min-height:1.75rem;-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;padding-left:0rem;padding-top:0.25rem;padding-bottom:0.25rem;}</style><div class="css-znl8a3"><style data-emotion="css tx8jsd">.css-tx8jsd{margin:0;font-size:1rem;line-height:1.5rem;font-family:"Helvetica Neue","sans-serif";font-weight:400;font-style:normal;color:#666666;}</style><a class="MuiTypography-root MuiTypography-body1 css-tx8jsd" target="_blank" href="https://docs.pingcap.com/zh" style="text-decoration:none;width:100%;color:inherit"><style data-emotion="css 8atqhb">.css-8atqhb{width:100%;}</style><div class="MuiBox-root css-8atqhb"><style data-emotion="css 1hwyipb">.css-1hwyipb{margin:0;font-size:1rem;line-height:1.5rem;font-family:"Helvetica Neue","sans-serif";font-weight:400;font-style:normal;color:#666666;color:inherit;font-size:0.875rem;line-height:1.25rem;}</style><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">文档中心</div></div></a></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-1" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-znl8a3"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">关于 TiDB</div></div><style data-emotion="css xjq79n">.css-xjq79n{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;width:1em;height:1em;display:inline-block;fill:currentColor;-webkit-flex-shrink:0;-ms-flex-negative:0;flex-shrink:0;-webkit-transition:fill 200ms cubic-bezier(0.4, 0, 0.2, 1) 0ms;transition:fill 200ms cubic-bezier(0.4, 0, 0.2, 1) 0ms;font-size:1.5rem;fill:#999999;height:1rem;width:1rem;margin-left:auto;-webkit-transform:none;-moz-transform:none;-ms-transform:none;transform:none;}</style><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div><style data-emotion="css 1jozaee">.css-1jozaee{margin:0;padding:0;margin-left:17px;}</style></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-2" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-znl8a3"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">快速上手</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-3" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-znl8a3"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">应用开发</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-4" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-znl8a3"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">部署标准集群</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-5" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-znl8a3"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">数据迁移</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-6" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-znl8a3"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">数据集成</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-7" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-znl8a3"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">运维操作</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-8" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-znl8a3"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">监控与告警</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-9" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-znl8a3"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">故障诊断</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-10" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-znl8a3"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">性能调优</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-11" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-znl8a3"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">教程</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-12" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-znl8a3"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">TiDB 工具</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="true" id="left-nav-treeview-0-13" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content Mui-expanded" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-znl8a3"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">参考指南</div></div><style data-emotion="css 171pefp">.css-171pefp{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;width:1em;height:1em;display:inline-block;fill:currentColor;-webkit-flex-shrink:0;-ms-flex-negative:0;flex-shrink:0;-webkit-transition:fill 200ms cubic-bezier(0.4, 0, 0.2, 1) 0ms;transition:fill 200ms cubic-bezier(0.4, 0, 0.2, 1) 0ms;font-size:1.5rem;fill:#999999;height:1rem;width:1rem;margin-left:auto;-webkit-transform:rotate(90deg);-moz-transform:rotate(90deg);-ms-transform:rotate(90deg);transform:rotate(90deg);}</style><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-171pefp" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div><style data-emotion="css 1xxsnna">.css-1xxsnna{height:auto;overflow:visible;-webkit-transition:height 300ms cubic-bezier(0.4, 0, 0.2, 1) 0ms;transition:height 300ms cubic-bezier(0.4, 0, 0.2, 1) 0ms;margin:0;padding:0;margin-left:17px;}</style><ul class="MuiCollapse-root MuiCollapse-vertical MuiTreeItem-group MuiCollapse-entered css-1xxsnna" style="min-height:0px" role="group"><div class="MuiCollapse-wrapper MuiCollapse-vertical css-hboir5"><div class="MuiCollapse-wrapperInner MuiCollapse-vertical css-8atqhb"><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-13-0" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><style data-emotion="css kb2j4b">.css-kb2j4b{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:row;-ms-flex-direction:row;flex-direction:row;min-height:1.75rem;-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;padding-left:0.5rem;padding-top:0.25rem;padding-bottom:0.25rem;}</style><div class="css-kb2j4b"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">架构</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-13-1" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-kb2j4b"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">存储引擎 TiKV</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-13-2" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-kb2j4b"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">存储引擎 TiFlash</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" id="left-nav-treeview-0-13-3" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-kb2j4b"><a style="text-decoration:none;width:100%;color:inherit" href="/zh/tidb/dev/system-variables"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">系统变量</div></div></a></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-13-4" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-kb2j4b"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">配置文件参数</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="true" id="left-nav-treeview-0-13-5" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content Mui-expanded" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-kb2j4b"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">CLI</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-171pefp" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div><ul class="MuiCollapse-root MuiCollapse-vertical MuiTreeItem-group MuiCollapse-entered css-1xxsnna" style="min-height:0px" role="group"><div class="MuiCollapse-wrapper MuiCollapse-vertical css-hboir5"><div class="MuiCollapse-wrapperInner MuiCollapse-vertical css-8atqhb"><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" id="left-nav-treeview-0-13-5-0" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><style data-emotion="css snygwd">.css-snygwd{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:row;-ms-flex-direction:row;flex-direction:row;min-height:1.75rem;-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;padding-left:1rem;padding-top:0.25rem;padding-bottom:0.25rem;}</style><div class="css-snygwd"><a style="text-decoration:none;width:100%;color:inherit" href="/zh/tidb/dev/tikv-control"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">tikv-ctl</div></div></a></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" id="left-nav-treeview-0-13-5-1" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content Mui-expanded" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-snygwd"><a aria-current="page" style="text-decoration:none;width:100%;color:inherit" class="" href="/zh/tidb/dev/pd-control"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">pd-ctl</div></div></a></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" id="left-nav-treeview-0-13-5-2" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-snygwd"><a style="text-decoration:none;width:100%;color:inherit" href="/zh/tidb/dev/tidb-control"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">tidb-ctl</div></div></a></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" id="left-nav-treeview-0-13-5-3" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-snygwd"><a style="text-decoration:none;width:100%;color:inherit" href="/zh/tidb/dev/pd-recover"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">pd-recover</div></div></a></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" id="left-nav-treeview-0-13-5-4" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-snygwd"><a style="text-decoration:none;width:100%;color:inherit" href="/zh/tidb/dev/binlog-control"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">binlog-ctl</div></div></a></div></div></div></li></div></div></ul></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-13-6" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-kb2j4b"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">命令行参数</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-13-7" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-kb2j4b"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">监控指标</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-13-8" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-kb2j4b"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">安全加固</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-13-9" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-kb2j4b"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">权限</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-13-10" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-kb2j4b"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">SQL</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-13-11" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-kb2j4b"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">UI</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" id="left-nav-treeview-0-13-12" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-kb2j4b"><a style="text-decoration:none;width:100%;color:inherit" href="/zh/tidb/dev/telemetry"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">遥测</div></div></a></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" id="left-nav-treeview-0-13-13" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-kb2j4b"><a style="text-decoration:none;width:100%;color:inherit" href="/zh/tidb/dev/error-codes"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">错误码</div></div></a></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" id="left-nav-treeview-0-13-14" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-kb2j4b"><a style="text-decoration:none;width:100%;color:inherit" href="/zh/tidb/dev/schedule-replicas-by-topology-labels"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">通过拓扑 label 进行副本调度</div></div></a></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-13-15" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-kb2j4b"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">内部组件介绍</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li></div></div></ul></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-14" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-znl8a3"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">常见问题解答 (FAQ)</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" aria-expanded="false" id="left-nav-treeview-0-15" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-znl8a3"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">版本发布历史</div></div><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeMedium MuiTreeItem-ChevronRightIcon css-xjq79n" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ChevronRightIcon"><path d="M10 6 8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"/></svg></div></div></div></li><li class="MuiTreeItem-root css-1oy5rnm" role="treeitem" id="left-nav-treeview-0-16" tabindex="-1" style="margin-top:0.1875rem;margin-bottom:0.1875rem"><div class="css-khel7y MuiTreeItem-content" style="width:inherit"><div class="MuiTreeItem-iconContainer"/><div class="MuiTreeItem-label"><div class="css-znl8a3"><a style="text-decoration:none;width:100%;color:inherit" href="/zh/tidb/dev/glossary"><div class="MuiBox-root css-8atqhb"><div class="MuiTypography-root MuiTypography-body1 css-1hwyipb">术语表</div></div></a></div></div></div></li></ul></div></aside><style data-emotion="css sb2sd0">.css-sb2sd0{width:100%;}@media (min-width:1200px){.css-sb2sd0{max-width:calc(100% - 18.75rem);}}</style><main class="MuiBox-root css-sb2sd0"><style data-emotion="css 1rnnmjb">.css-1rnnmjb{max-width:1340px;width:100%;margin-left:auto;margin-right:auto;display:block;box-sizing:border-box;}</style><div class="MuiBox-root css-1rnnmjb"><style data-emotion="css 90fn5w">.css-90fn5w{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;}@media (min-width:0px){.css-90fn5w{-webkit-flex-direction:column-reverse;-ms-flex-direction:column-reverse;flex-direction:column-reverse;}}@media (min-width:600px){.css-90fn5w{-webkit-flex-direction:row;-ms-flex-direction:row;flex-direction:row;}}</style><div class="css-90fn5w"><style data-emotion="css vofosd">.css-vofosd{padding:1.5rem 0;}@media (min-width:0px){.css-vofosd{width:100%;}}@media (min-width:600px){.css-vofosd{width:calc(100% - 17.5rem);}}</style><div class="MuiBox-root css-vofosd"><style data-emotion="css 1ekb41w">.css-1ekb41w{width:100%;margin-left:auto;box-sizing:border-box;margin-right:auto;display:block;padding-left:16px;padding-right:16px;}@media (min-width:600px){.css-1ekb41w{padding-left:24px;padding-right:24px;}}@media (min-width:1536px){.css-1ekb41w{max-width:1536px;}}</style><div class="MuiContainer-root MuiContainer-maxWidthXl doc-content css-1ekb41w"><div class="markdown-body MuiBox-root css-0"><h1 id="pd-control-使用说明" style="position:relative"><a href="#pd-control-%E4%BD%BF%E7%94%A8%E8%AF%B4%E6%98%8E" aria-label="pd control 使用说明 permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>PD Control 使用说明</h1><p>PD Control 是 PD 的命令行工具，用于获取集群状态信息和调整集群。</p><h2 id="安装方式" style="position:relative"><a href="#%E5%AE%89%E8%A3%85%E6%96%B9%E5%BC%8F" aria-label="安装方式 permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>安装方式</h2><style data-emotion="css 1weqspv">.css-1weqspv{padding-top:0.5rem;padding-bottom:0.5rem;}.css-1weqspv .MuiAlert-message p{margin-bottom:0px;margin-top:0px;}</style><div class="MuiBox-root css-1weqspv"><style data-emotion="css 17zlexa">.css-17zlexa{font-size:0.875rem;line-height:1.25rem;font-family:"Helvetica Neue","sans-serif";font-weight:400;font-style:normal;color:rgb(1, 67, 97);background-color:rgb(229, 246, 253);display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;padding:6px 16px;}.css-17zlexa .MuiAlert-icon{color:#03a9f4;}</style><style data-emotion="css 152gid5">.css-152gid5{background-color:#fff;color:rgba(0, 0, 0, 0.87);-webkit-transition:box-shadow 300ms cubic-bezier(0.4, 0, 0.2, 1) 0ms;transition:box-shadow 300ms cubic-bezier(0.4, 0, 0.2, 1) 0ms;border-radius:4px;box-shadow:none;font-size:0.875rem;line-height:1.25rem;font-family:"Helvetica Neue","sans-serif";font-weight:400;font-style:normal;color:rgb(1, 67, 97);background-color:rgb(229, 246, 253);display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;padding:6px 16px;}.css-152gid5 .MuiAlert-icon{color:#03a9f4;}</style><div class="MuiPaper-root MuiPaper-elevation MuiPaper-rounded MuiPaper-elevation0 MuiAlert-root MuiAlert-standardInfo MuiAlert-standard css-152gid5" role="alert"><style data-emotion="css 1l54tgj">.css-1l54tgj{margin-right:12px;padding:7px 0;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;font-size:22px;opacity:0.9;}</style><div class="MuiAlert-icon css-1l54tgj"><style data-emotion="css 1cw4hi4">.css-1cw4hi4{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;width:1em;height:1em;display:inline-block;fill:currentColor;-webkit-flex-shrink:0;-ms-flex-negative:0;flex-shrink:0;-webkit-transition:fill 200ms cubic-bezier(0.4, 0, 0.2, 1) 0ms;transition:fill 200ms cubic-bezier(0.4, 0, 0.2, 1) 0ms;font-size:inherit;}</style><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeInherit css-1cw4hi4" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="InfoOutlinedIcon"><path d="M11,9H13V7H11M12,20C7.59,20 4,16.41 4,12C4,7.59 7.59,4 12,4C16.41,4 20,7.59 20, 12C20,16.41 16.41,20 12,20M12,2A10,10 0 0,0 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10, 10 0 0,0 12,2M11,17H13V11H11V17Z"/></svg></div><style data-emotion="css 1xsto0d">.css-1xsto0d{padding:8px 0;min-width:0;overflow:auto;}</style><div class="MuiAlert-message css-1xsto0d"><style data-emotion="css 1h2y6o4">.css-1h2y6o4{font-weight:500;margin-top:-2px;}</style><style data-emotion="css 17ioyuk">.css-17ioyuk{margin:0;font-size:1rem;line-height:1.5rem;font-family:"Helvetica Neue","sans-serif";font-weight:400;font-style:normal;color:#666666;margin-bottom:0.35em;font-weight:500;margin-top:-2px;}</style><div class="MuiTypography-root MuiTypography-body1 MuiTypography-gutterBottom MuiAlertTitle-root css-17ioyuk">注意</div><p>建议使用的 Control 工具版本与集群版本保持一致。</p></div></div></div><h3 id="使用-tiup" style="position:relative"><a href="#%E4%BD%BF%E7%94%A8-tiup" aria-label="使用 tiup permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>使用 TiUP</h3><p>可直接通过 <code>tiup ctl:v&lt;CLUSTER_VERSION&gt; pd -u http://&lt;pd_ip&gt;:&lt;pd_port&gt; [-i]</code> 使用。</p><h3 id="下载安装包" style="position:relative"><a href="#%E4%B8%8B%E8%BD%BD%E5%AE%89%E8%A3%85%E5%8C%85" aria-label="下载安装包 permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>下载安装包</h3><p>如需下载最新版本的 <code>pd-ctl</code>，直接下载 TiDB 安装包即可。<code>pd-ctl</code> 位于 TiDB 安装包的 <code>ctl-{version}-linux-{arch}.tar.gz</code> 包中。</p><table><thead><tr><th align="left">安装包</th><th align="left">操作系统</th><th align="left">架构</th><th align="left">SHA256 校验和</th></tr></thead><tbody><tr><td align="left"><code>https://download.pingcap.org/tidb-community-server-{version}-linux-amd64.tar.gz</code> (pd-ctl)</td><td align="left">Linux</td><td align="left">amd64</td><td align="left"><code>https://download.pingcap.org/tidb-community-server-{version}-linux-amd64.sha256</code></td></tr><tr><td align="left"><code>https://download.pingcap.org/tidb-community-server-{version}-linux-arm64.tar.gz</code> (pd-ctl)</td><td align="left">Linux</td><td align="left">arm64</td><td align="left"><code>https://download.pingcap.org/tidb-community-server-{version}-linux-arm64.sha256</code></td></tr></tbody></table><div class="MuiBox-root css-1weqspv"><div class="MuiPaper-root MuiPaper-elevation MuiPaper-rounded MuiPaper-elevation0 MuiAlert-root MuiAlert-standardInfo MuiAlert-standard css-152gid5" role="alert"><div class="MuiAlert-icon css-1l54tgj"><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeInherit css-1cw4hi4" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="InfoOutlinedIcon"><path d="M11,9H13V7H11M12,20C7.59,20 4,16.41 4,12C4,7.59 7.59,4 12,4C16.41,4 20,7.59 20, 12C20,16.41 16.41,20 12,20M12,2A10,10 0 0,0 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10, 10 0 0,0 12,2M11,17H13V11H11V17Z"/></svg></div><div class="MuiAlert-message css-1xsto0d"><div class="MuiTypography-root MuiTypography-body1 MuiTypography-gutterBottom MuiAlertTitle-root css-17ioyuk">注意</div><p>下载链接中的 <code>{version}</code> 为 TiDB 的版本号。例如，amd64 架构的 <code>v7.0.0</code> 版本的下载链接为 <code>https://download.pingcap.org/tidb-community-server-v7.0.0-linux-amd64.tar.gz</code>。</p></div></div></div><h3 id="源码编译" style="position:relative"><a href="#%E6%BA%90%E7%A0%81%E7%BC%96%E8%AF%91" aria-label="源码编译 permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>源码编译</h3><ol><li><a href="https://golang.org/" target="_blank" referrerpolicy="no-referrer-when-downgrade">Go</a> 1.20 或以上版本</li><li>在 PD 项目根目录使用 <code>make</code> 或者 <code>make pd-ctl</code> 命令进行编译，生成 bin/pd-ctl</li></ol><h2 id="简单例子" style="position:relative"><a href="#%E7%AE%80%E5%8D%95%E4%BE%8B%E5%AD%90" aria-label="简单例子 permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>简单例子</h2><p>单命令模式：</p><pre><code class="language-bash">tiup ctl:v&lt;CLUSTER_VERSION&gt; pd store -u http://127.0.0.1:2379 </code></pre><p>交互模式：</p><pre><code class="language-bash">tiup ctl:v&lt;CLUSTER_VERSION&gt; pd -i -u http://127.0.0.1:2379 </code></pre><p>使用环境变量：</p><pre><code class="language-bash">export PD_ADDR=http://127.0.0.1:2379 &amp;&amp; tiup ctl:v&lt;CLUSTER_VERSION&gt; pd </code></pre><p>使用 TLS 加密：</p><pre><code class="language-bash">tiup ctl:v&lt;CLUSTER_VERSION&gt; pd -u https://127.0.0.1:2379 --cacert="path/to/ca" --cert="path/to/cert" --key="path/to/key" </code></pre><h2 id="命令行参数-flags" style="position:relative"><a href="#%E5%91%BD%E4%BB%A4%E8%A1%8C%E5%8F%82%E6%95%B0-flags" aria-label="命令行参数 flags permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>命令行参数 (flags)</h2><h3 id="--cacert" style="position:relative"><a href="#--cacert" aria-label=" cacert permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>--cacert</code></h3><ul><li>指定 PEM 格式的受信任 CA 证书的文件路径</li><li>默认值：""</li></ul><h3 id="--cert" style="position:relative"><a href="#--cert" aria-label=" cert permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>--cert</code></h3><ul><li>指定 PEM 格式的 SSL 证书的文件路径</li><li>默认值：""</li></ul><h3 id="--detach---d" style="position:relative"><a href="#--detach---d" aria-label=" detach d permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>--detach</code> / <code>-d</code></h3><ul><li>使用单命令行模式（不进入 readline）</li><li>默认值：true</li></ul><h3 id="--help---h" style="position:relative"><a href="#--help---h" aria-label=" help h permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>--help</code> / <code>-h</code></h3><ul><li>输出帮助信息</li><li>默认值：false</li></ul><h3 id="--interact-i" style="position:relative"><a href="#--interact-i" aria-label=" interact i permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>--interact</code>/<code>-i</code></h3><ul><li>使用交互模式（进入 readline）</li><li>默认值：false</li></ul><h3 id="--key" style="position:relative"><a href="#--key" aria-label=" key permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>--key</code></h3><ul><li>指定 PEM 格式的 SSL 证书密钥文件路径，即 <code>--cert</code> 所指定的证书的私钥</li><li>默认值：""</li></ul><h3 id="--pd-u" style="position:relative"><a href="#--pd-u" aria-label=" pd u permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>--pd</code>/<code>-u</code></h3><ul><li>指定 PD 的地址</li><li>默认地址：<code>http://127.0.0.1:2379</code></li><li>环境变量：<code>PD_ADDR</code></li></ul><h3 id="--version-v" style="position:relative"><a href="#--version-v" aria-label=" version v permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>--version</code>/<code>-V</code></h3><ul><li>打印版本信息并退出</li><li>默认值：false</li></ul><h2 id="命令-command" style="position:relative"><a href="#%E5%91%BD%E4%BB%A4-command" aria-label="命令 command permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>命令 (command)</h2><h3 id="cluster" style="position:relative"><a href="#cluster" aria-label="cluster permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>cluster</h3><p>用于显示集群基本信息。</p><p>示例：</p><pre><code class="language-bash">cluster "id": 6493707687106161130, "max_peer_count": 3 </code></pre><h3 id="config-show--set-option-value--placement-rules" style="position:relative"><a href="#config-show--set-option-value--placement-rules" aria-label="config show set option value placement rules permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>config [show | set &lt;option&gt; &lt;value&gt; | placement-rules]</code></h3><p>用于显示或调整配置信息。示例如下。</p><p>显示 scheduling 的相关 config 信息：</p><pre><code class="language-bash">config show "replication": { "enable-placement-rules": "true", "isolation-level": "", "location-labels": "", "max-replicas": 3, "strictly-match-label": "false" "schedule": { "enable-cross-table-merge": "true", "high-space-ratio": 0.7, "hot-region-cache-hits-threshold": 3, "hot-region-schedule-limit": 4, "leader-schedule-limit": 4, "leader-schedule-policy": "count", "low-space-ratio": 0.8, "max-merge-region-keys": 200000, "max-merge-region-size": 20, "max-pending-peer-count": 64, "max-snapshot-count": 64, "max-store-down-time": "30m0s", "merge-schedule-limit": 8, "patrol-region-interval": "10ms", "region-schedule-limit": 2048, "region-score-formula-version": "v2", "replica-schedule-limit": 64, "scheduler-max-waiting-operator": 5, "split-merge-interval": "1h0m0s", "tolerant-size-ratio": 0 </code></pre><p>显示所有的 config 信息：</p><pre><code class="language-bash">config show all </code></pre><p>显示 replication 的相关 config 信息：</p><pre><code class="language-bash">config show replication "max-replicas": 3, "isolation-level": "", "location-labels": "", "strictly-match-label": "false", "enable-placement-rules": "true" </code></pre><p>显示目前集群版本，是目前集群 TiKV 节点的最低版本，并不对应 binary 的版本：</p><pre><code class="language-bash">config show cluster-version </code></pre><pre><code>"5.2.2" </code></pre><ul><li><p><code>max-snapshot-count</code> 控制单个 store 最多同时接收或发送的 snapshot 数量，调度受制于这个配置来防止抢占正常业务的资源。当需要加快补副本或 balance 速度时可以调大这个值。</p><p> 设置最大 snapshot 为 64：</p><pre><code class="language-bash">config set max-snapshot-count 64 </code></pre></li><li><p><code>max-pending-peer-count</code> 控制单个 store 的 pending peer 上限，调度受制于这个配置来防止在部分节点产生大量日志落后的 Region。需要加快补副本或 balance 速度可以适当调大这个值，设置为 0 则表示不限制。</p><p> 设置最大 pending peer 数量为 64：</p><pre><code class="language-bash">config set max-pending-peer-count 64 </code></pre></li><li><p><code>max-merge-region-size</code> 控制 Region Merge 的 size 上限（单位是 MiB）。当 Region Size 大于指定值时 PD 不会将其与相邻的 Region 合并。设置为 0 表示不开启 Region Merge 功能。</p><p> 设置 Region Merge 的 size 上限为 16 MiB：</p><pre><code class="language-bash">config set max-merge-region-size 16 </code></pre></li><li><p><code>max-merge-region-keys</code> 控制 Region Merge 的 keyCount 上限。当 Region KeyCount 大于指定值时 PD 不会将其与相邻的 Region 合并。</p><p> 设置 Region Merge 的 keyCount 上限为 50000：</p><pre><code class="language-bash">config set max-merge-region-keys 50000 </code></pre></li><li><p><code>split-merge-interval</code> 控制对同一个 Region 做 <code>split</code> 和 <code>merge</code> 操作的间隔，即对于新 <code>split</code> 的 Region 一段时间内不会被 <code>merge</code>。</p><p> 设置 <code>split</code> 和 <code>merge</code> 的间隔为 1 天：</p><pre><code class="language-bash">config set split-merge-interval 24h </code></pre></li><li><p><code>enable-one-way-merge</code> 用于控制是否只允许和相邻的后一个 Region 进行合并。当设置为 <code>false</code> 时，PD 允许与相邻的前后 Region 进行合并。</p><p> 设置只允许和相邻的后一个 Region 合并：</p><pre><code class="language-bash">config set enable-one-way-merge true </code></pre></li><li><p><code>enable-cross-table-merge</code> 用于开启跨表 Region 的合并。当设置为 <code>false</code> 时，PD 不会合并不同表的 Region。该选项只在键类型为 "table" 时生效。</p><p> 设置允许跨表合并：</p><pre><code class="language-bash">config set enable-cross-table-merge true </code></pre></li><li><p><code>key-type</code> 用于指定集群的键编码类型。支持的类型有 <code>["table", "raw", "txn"]</code>，默认值为 "table"。</p><ul><li><p>如果集群中不存在 TiDB 实例，<code>key-type</code> 的值为 "raw" 或 "txn"。此时，无论 <code>enable-cross-table-merge</code> 设置为何，PD 均可以跨表合并 Region。</p></li><li><p>如果集群中存在 TiDB 实例，<code>key-type</code> 的值应当为 "table"。此时，<code>enable-cross-table-merge</code> 的设置决定了 PD 是否能跨表合并 Region。如果 <code>key-type</code> 的值为 "raw"，placement rules 不生效。</p><p>启用跨表合并：</p><pre><code class="language-bash">config set key-type raw </code></pre></li></ul></li><li><p><code>region-score-formula-version</code> 用于设置 Region 算分公式的版本，支持的值有 <code>["v1", "v2"]</code>。v2 版本公式有助于减少上下线等场景下冗余的 balance Region 调度。</p><p> 开启 v2 版本 Region 算分公式：</p><pre><code class="language-bash">config set region-score-formula-version v2 </code></pre></li><li><p><code>patrol-region-interval</code> 控制 replicaChecker 检查 Region 健康状态的运行频率，越短则运行越快，通常状况不需要调整。</p><p> 设置 replicaChecker 的运行频率为 10 毫秒：</p><pre><code class="language-bash">config set patrol-region-interval 10ms </code></pre></li><li><p><code>max-store-down-time</code> 为 PD 认为失联 store 无法恢复的时间，当超过指定的时间没有收到 store 的心跳后，PD 会在其他节点补充副本。</p><p> 设置 store 心跳丢失 30 分钟开始补副本：</p><pre><code class="language-bash">config set max-store-down-time 30m </code></pre></li><li><p><code>max-store-preparing-time</code> 控制 store 上线阶段的最长等待时间。在 store 的上线阶段，PD 可以查询该 store 的上线进度。当超过该配置项指定的时间后，PD 会认为该 store 已完成上线，无法再次查询这个 store 的上线进度，但是不影响 Region 向这个新上线 store 的迁移。通常用户无需修改该配置项。</p><p> 设置 store 上线阶段最多等待 4 小时：</p><pre><code class="language-bash">config set max-store-preparing-time 4h </code></pre></li><li><p>通过调整 <code>leader-schedule-limit</code> 可以控制同时进行 leader 调度的任务个数。这个值主要影响 <em>leader balance</em> 的速度，值越大调度得越快，设置为 0 则关闭调度。Leader 调度的开销较小，需要的时候可以适当调大。</p><p> 最多同时进行 4 个 leader 调度：</p><pre><code class="language-bash">config set leader-schedule-limit 4 </code></pre></li><li><p>通过调整 <code>region-schedule-limit</code> 可以控制同时进行 Region 调度的任务个数。这个值可以避免创建过多的 Region balance operator。默认值为 <code>2048</code>，对所有大小的集群都足够。设置为 <code>0</code> 则关闭调度。Region 调度的速度通常受到 <code>store-limit</code> 的限制，但除非你熟悉该设置，否则不推荐自定义该参数。</p><p> 最多同时进行 2 个 Region 调度：</p><pre><code class="language-bash">config set region-schedule-limit 2 </code></pre></li><li><p>通过调整 <code>replica-schedule-limit</code> 可以控制同时进行 replica 调度的任务个数。这个值主要影响节点挂掉或者下线的时候进行调度的速度，值越大调度得越快，设置为 0 则关闭调度。Replica 调度的开销较大，所以这个值不宜调得太大。注意：该参数通常保持为默认值。如需调整，需要根据实际情况反复尝试设置该值大小。</p><p> 最多同时进行 4 个 replica 调度：</p><pre><code class="language-bash">config set replica-schedule-limit 4 </code></pre></li><li><p><code>merge-schedule-limit</code> 控制同时进行的 Region Merge 调度的任务，设置为 0 则关闭 Region Merge。Merge 调度的开销较大，所以这个值不宜调得过大。注意：该参数通常保持为默认值。如需调整，需要根据实际情况反复尝试设置该值大小。</p><p> 最多同时进行 16 个 merge 调度：</p><pre><code class="language-bash">config set merge-schedule-limit 16 </code></pre></li><li><p><code>hot-region-schedule-limit</code> 控制同时进行的 Hot Region 调度的任务，设置为 0 则关闭调度。这个值不宜调得过大，否则可能对系统性能造成影响。注意：该参数通常保持为默认值。如需调整，需要根据实际情况反复尝试设置该值大小。</p><p> 最多同时进行 4 个 Hot Region 调度：</p><pre><code class="language-bash">config set hot-region-schedule-limit 4 </code></pre></li><li><p><code>hot-region-cache-hits-threshold</code> 用于设置识别热点 Region 所需的分钟数，只有 Region 处于热点状态持续时间超过该分钟数后，才能参与热点调度。</p></li><li><p><code>tolerant-size-ratio</code> 控制 balance 缓冲区大小。当两个 store 的 leader 或 Region 的得分差距小于指定倍数的 Region size 时，PD 会认为此时 balance 达到均衡状态。</p><p> 设置缓冲区为约 20 倍平均 RegionSize：</p><pre><code class="language-bash">config set tolerant-size-ratio 20 </code></pre></li><li><p><code>low-space-ratio</code> 用于设置 store 空间不足的阈值。当节点的空间占用比例超过指定值时，PD 会尽可能避免往对应节点迁移数据，同时主要针对剩余空间大小进行调度，避免对应节点磁盘空间被耗尽。</p><p> 设置空间不足阈值为 0.9：</p><pre><code class="language-bash">config set low-space-ratio 0.9 </code></pre></li><li><p><code>high-space-ratio</code> 用于设置 store 空间充裕的阈值，此配置仅的在 <code>region-score-formula-version = v1</code> 时生效。当节点的空间占用比例小于指定值时，PD 调度时会忽略剩余空间这个指标，主要针对实际数据量进行均衡。</p><p> 设置空间充裕阈值为 0.5：</p><pre><code class="language-bash">config set high-space-ratio 0.5 </code></pre></li><li><p><code>cluster-version</code> 集群的版本，用于控制某些 Feature 是否开启，处理兼容性问题。通常是集群正常运行的所有 TiKV 节点中的最低版本，需要回滚到更低的版本时才进行手动设置。</p><p> 设置 cluster version 为 1.0.8：</p><pre><code class="language-bash">config set cluster-version 1.0.8 </code></pre></li><li><p><code>leader-schedule-policy</code> 用于选择 Leader 的调度策略，可以选择按照 <code>size</code> 或者 <code>count</code> 来进行调度。</p></li><li><p><code>scheduler-max-waiting-operator</code> 用于控制每个调度器同时存在的 operator 的个数。</p></li><li><p><code>enable-remove-down-replica</code> 用于开启自动删除 DownReplica 的特性。当设置为 false 时，PD 不会自动清理宕机状态的副本。</p></li><li><p><code>enable-replace-offline-replica</code> 用于开启迁移 OfflineReplica 的特性。当设置为 false 时，PD 不会迁移下线状态的副本。</p></li><li><p><code>enable-make-up-replica</code> 用于开启补充副本的特性。当设置为 false 时，PD 不会为副本数不足的 Region 补充副本。</p></li><li><p><code>enable-remove-extra-replica</code> 用于开启删除多余副本的特性。当设置为 false 时，PD 不会为副本数过多的 Region 删除多余副本。</p></li><li><p><code>enable-location-replacement</code> 用于开启隔离级别检查。当设置为 false 时，PD 不会通过调度来提升 Region 副本的隔离级别。</p></li><li><p><code>enable-debug-metrics</code> 用于开启 debug 的 metrics。当设置为 true 时，PD 会开启一些 metrics，比如 <code>balance-tolerant-size</code> 等。</p></li><li><p><code>enable-placement-rules</code> 用于开启 placement rules，在 v5.0 及以上的版本默认开启。</p></li><li><p><code>store-limit-mode</code> 用于控制 store 限速机制的模式。主要有两种模式：<code>auto</code> 和 <code>manual</code>。<code>auto</code> 模式下会根据 load 自动进行平衡调整（弃用）。</p></li><li><p><code>store-limit-version</code> 用于设置 <code>store limit</code> 限制模式，目前提供两种方式：<code>v1</code> 和 <code>v2</code>。默认值为 <code>v1</code>。在 <code>v1</code> 模式下，你可以手动修改 <code>store limit</code> 以限制单个 TiKV 调度速度。<code>v2</code> 模式为实验特性，在 <code>v2</code> 模式下，你无需关注 <code>store limit</code> 值，PD 将根据 TiKV Snapshot 执行情况动态调整 TiKV 调度速度。详情请参考 <a href="/zh/tidb/dev/configure-store-limit#store-limit-v2-原理">Store Limit v2 原理</a>。</p><pre><code class="language-bash">config set store-limit-version v2 // 使用 Store Limit v2 </code></pre></li><li><p>PD 会对流量信息的末尾数字进行四舍五入处理，减少 Region 流量信息变化引起的统计信息更新。该配置项用于指定对 Region 流量信息的末尾进行四舍五入的位数。例如流量 <code>100512</code> 会归约到 <code>101000</code>。默认值为 <code>3</code>。该配置替换了 <code>trace-region-flow</code>。</p><p> 示例：将 <code>flow-round-by-digit</code> 的值设为 <code>4</code>：</p><pre><code class="language-bash">config set flow-round-by-digit 4 </code></pre></li></ul><h3 id="config-placement-rules-disable--enable--load--save--show--rule-group" style="position:relative"><a href="#config-placement-rules-disable--enable--load--save--show--rule-group" aria-label="config placement rules disable enable load save show rule group permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>config placement-rules [disable | enable | load | save | show | rule-group]</code></h3><p>关于 <code>config placement-rules</code> 的具体用法，参考 <a href="/zh/tidb/dev/configure-placement-rules#配置规则操作步骤">Placement Rules 使用文档</a>。</p><h3 id="health" style="position:relative"><a href="#health" aria-label="health permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>health</h3><p>用于显示集群健康信息。示例如下。</p><p>显示健康信息：</p><pre><code class="language-bash">health "name": "pd", "member_id": 13195394291058371180, "client_urls": [ "http://127.0.0.1:2379" ...... "health": true ...... </code></pre><h3 id="hot-read--write--store-history-start_time-end_time-key-value" style="position:relative"><a href="#hot-read--write--store-history-start_time-end_time-key-value" aria-label="hot read write store history start_time end_time key value permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>hot [read | write | store| history &lt;start_time&gt; &lt;end_time&gt; [&lt;key&gt; &lt;value&gt;]]</code></h3><p>用于显示集群热点信息。示例如下。</p><p>显示读热点信息：</p><pre><code class="language-bash">hot read </code></pre><p>显示写热点信息：</p><pre><code class="language-bash">hot write </code></pre><p>显示所有 store 的读写信息：</p><pre><code class="language-bash">hot store </code></pre><p>显示历史读写热点信息:</p><pre><code>hot history startTime endTime [ &lt;name&gt; &lt;value&gt; ] </code></pre><p>例如查询时间 <code>1629294000000</code> 到 <code>1631980800000</code> （毫秒）之间的历史热点 Region 信息:</p><pre><code>hot history 1629294000000 1631980800000 "history_hot_region": [ "update_time": 1630864801948, "region_id": 103, "peer_id": 1369002, "store_id": 3, "is_leader": true, "is_learner": false, "hot_region_type": "read", "hot_degree": 152, "flow_bytes": 0, "key_rate": 0, "query_rate": 305, "start_key": "7480000000000000FF5300000000000000F8", "end_key": "7480000000000000FF5600000000000000F8" </code></pre><p>对于参数的值为数组的请用 <code>x, y, ...</code> 的形式进行参数值的设置，所有支持的参数如下所示:</p><pre><code>hot history 1629294000000 1631980800000 hot_region_type read region_id 1,2,3 store_id 1,2,3 peer_id 1,2,3 is_leader true is_learner true "history_hot_region": [ "update_time": 1630864801948, "region_id": 103, "peer_id": 1369002, "store_id": 3, "is_leader": true, "is_learner": false, "hot_region_type": "read", "hot_degree": 152, "flow_bytes": 0, "key_rate": 0, "query_rate": 305, "start_key": "7480000000000000FF5300000000000000F8", "end_key": "7480000000000000FF5600000000000000F8" </code></pre><h3 id="label-store-name-value" style="position:relative"><a href="#label-store-name-value" aria-label="label store name value permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>label [store &lt;name&gt; &lt;value&gt;]</code></h3><p>用于显示集群标签信息。示例如下。</p><p>显示所有 label：</p><pre><code class="language-bash">label </code></pre><p>显示所有包含 label 为 "zone":"cn" 的 store：</p><pre><code class="language-bash">label store zone cn </code></pre><h3 id="member-delete--leader_priority--leader-show--resign--transfer-member_name" style="position:relative"><a href="#member-delete--leader_priority--leader-show--resign--transfer-member_name" aria-label="member delete leader_priority leader show resign transfer member_name permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>member [delete | leader_priority | leader [show | resign | transfer &lt;member_name&gt;]]</code></h3><p>用于显示 PD 成员信息，删除指定成员，设置成员的 leader 优先级。示例如下。</p><p>显示所有成员的信息：</p><pre><code class="language-bash">member "header": {......}, "members": [......], "leader": {......}, "etcd_leader": {......}, </code></pre><p>下线 "pd2"：</p><pre><code class="language-bash">member delete name pd2 </code></pre><pre><code>Success! </code></pre><p>使用 id 下线节点：</p><pre><code class="language-bash">member delete id 1319539429105371180 </code></pre><pre><code>Success! </code></pre><p>显示 leader 的信息：</p><pre><code class="language-bash">member leader show "name": "pd", "member_id": 13155432540099656863, "peer_urls": [......], "client_urls": [......] </code></pre><p>将 leader 从当前成员移走：</p><pre><code class="language-bash">member leader resign </code></pre><pre><code>...... </code></pre><p>将 leader 迁移至指定成员：</p><pre><code class="language-bash">member leader transfer pd3 </code></pre><pre><code>...... </code></pre><h3 id="operator-check--show--add--remove" style="position:relative"><a href="#operator-check--show--add--remove" aria-label="operator check show add remove permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>operator [check | show | add | remove]</code></h3><p>用于显示和控制调度操作。</p><p>示例：</p><pre><code class="language-bash">&gt;&gt; operator show // 显示所有的 operators &gt;&gt; operator show admin // 显示所有的 admin operators &gt;&gt; operator show leader // 显示所有的 leader operators &gt;&gt; operator show region // 显示所有的 Region operators &gt;&gt; operator add add-peer 1 2 // 在 store 2 上新增 Region 1 的一个副本 &gt;&gt; operator add add-learner 1 2 // 在 store 2 上新增 Region 1 的一个 learner 副本 &gt;&gt; operator add remove-peer 1 2 // 移除 store 2 上的 Region 1 的一个副本 &gt;&gt; operator add transfer-leader 1 2 // 把 Region 1 的 leader 调度到 store 2 &gt;&gt; operator add transfer-region 1 2 3 4 // 把 Region 1 调度到 store 2,3,4 &gt;&gt; operator add transfer-peer 1 2 3 // 把 Region 1 在 store 2 上的副本调度到 store 3 &gt;&gt; operator add merge-region 1 2 // 将 Region 1 与 Region 2 合并 &gt;&gt; operator add split-region 1 --policy=approximate // 将 Region 1 对半拆分成两个 Region，基于粗略估计值 &gt;&gt; operator add split-region 1 --policy=scan // 将 Region 1 对半拆分成两个 Region，基于精确扫描值 &gt;&gt; operator remove 1 // 把 Region 1 的调度操作删掉 &gt;&gt; operator check 1 // 查看 Region 1 相关 operator 的状态 </code></pre><p>其中，Region 的分裂都是尽可能地从靠近中间的位置开始。对这个位置的选择支持两种策略，即 scan 和 approximate。它们之间的区别是，前者通过扫描这个 Region 的方式来确定中间的 key，而后者是通过查看 SST 文件中记录的统计信息，来得到近似的位置。一般来说，前者更加精确，而后者消耗更少的 I/O，可以更快地完成。</p><h3 id="ping" style="position:relative"><a href="#ping" aria-label="ping permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>ping</code></h3><p>用于显示<code>ping</code> PD 所需要花费的时间</p><p>示例：</p><pre><code class="language-bash">ping </code></pre><pre><code>time: 43.12698ms </code></pre><h3 id="region-region_id---jqquery-string" style="position:relative"><a href="#region-region_id---jqquery-string" aria-label="region region_id jqquery string permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>region &lt;region_id&gt; [--jq="&lt;query string&gt;"]</code></h3><p>用于显示 Region 信息。使用 jq 格式化输出请参考 <a href="#jq-%E6%A0%BC%E5%BC%8F%E5%8C%96-json-%E8%BE%93%E5%87%BA%E7%A4%BA%E4%BE%8B">jq 格式化 json 输出示例</a>。示例如下。</p><p>显示所有 Region 信息：</p><pre><code class="language-bash">region "count": 1, "regions": [......] </code></pre><p>显示 Region id 为 2 的信息：</p><pre><code class="language-bash">region 2 "id": 2, "start_key": "7480000000000000FF1D00000000000000F8", "end_key": "7480000000000000FF1F00000000000000F8", "epoch": { "conf_ver": 1, "version": 15 "peers": [ "id": 40, "store_id": 3 "leader": { "id": 40, "store_id": 3 "written_bytes": 0, "read_bytes": 0, "written_keys": 0, "read_keys": 0, "approximate_size": 1, "approximate_keys": 0 </code></pre><h3 id="region-key---formatrawencodehex-key" style="position:relative"><a href="#region-key---formatrawencodehex-key" aria-label="region key formatrawencodehex key permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>region key [--format=raw|encode|hex] &lt;key&gt;</code></h3><p>用于查询某个 key 位于哪一个 Region 上，支持 raw、encoding 和 hex 格式。使用 encoding 格式时，key 需要使用单引号。</p><p>Hex 格式（默认）示例：</p><pre><code class="language-bash">region key 7480000000000000FF1300000000000000F8 "region": { "id": 2, ...... </code></pre><p>Raw 格式示例：</p><pre><code class="language-bash">region key --format=raw abc "region": { "id": 2, ...... </code></pre><p>Encoding 格式示例：</p><pre><code class="language-bash">region key --format=encode 't\200\000\000\000\000\000\000\377\035_r\200\000\000\000\000\377\017U\320\000\000\000\000\000\372' "region": { "id": 2, ...... </code></pre><h3 id="region-scan" style="position:relative"><a href="#region-scan" aria-label="region scan permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>region scan</code></h3><p>用于获取所有 Region。</p><p>示例：</p><pre><code class="language-bash">region scan "count": 20, "regions": [......], </code></pre><h3 id="region-sibling-region_id" style="position:relative"><a href="#region-sibling-region_id" aria-label="region sibling region_id permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>region sibling &lt;region_id&gt;</code></h3><p>用于查询某个 Region 相邻的 Region。</p><p>示例：</p><pre><code class="language-bash">region sibling 2 "count": 2, "regions": [......], </code></pre><h3 id="region-keys---formatrawencodehex-start_key-end_key-limit" style="position:relative"><a href="#region-keys---formatrawencodehex-start_key-end_key-limit" aria-label="region keys formatrawencodehex start_key end_key limit permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>region keys [--format=raw|encode|hex] &lt;start_key&gt; &lt;end_key&gt; &lt;limit&gt;</code></h3><p>用于查询某个 key 范围内的所有 Region。支持不带 <code>endKey</code> 的范围。<code>limit</code> 的默认值是 <code>16</code>，设为 <code>-1</code> 则表示无数量限制。示例如下：</p><p>显示从 a 开始的所有 Region 信息，数量上限为 16：</p><pre><code class="language-bash">region keys --format=raw a "count": 16, "regions": [......], </code></pre><p>显示 [a, z) 范围内的所有 Region 信息，数量上限为 16：</p><pre><code class="language-bash">region keys --format=raw a z "count": 16, "regions": [......], </code></pre><p>显示 [a, z) 范围内的所有 Region 信息，无数量上限：</p><pre><code class="language-bash">region keys --format=raw a z -1 "count": ..., "regions": [......], </code></pre><p>显示从 a 开始的所有 Region 信息，数量上限为 20：</p><pre><code class="language-bash">region keys --format=raw a "" 20 "count": 20, "regions": [......], </code></pre><h3 id="region-store-store_id" style="position:relative"><a href="#region-store-store_id" aria-label="region store store_id permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>region store &lt;store_id&gt;</code></h3><p>用于查询某个 store 上面所有的 Region。</p><p>示例：</p><pre><code class="language-bash">region store 2 "count": 10, "regions": [......], </code></pre><h3 id="region-topread-limit" style="position:relative"><a href="#region-topread-limit" aria-label="region topread limit permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>region topread [limit]</code></h3><p>用于查询读流量最大的 Region。limit 的默认值是 16。</p><p>示例：</p><pre><code class="language-bash">region topread "count": 16, "regions": [......], </code></pre><h3 id="region-topwrite-limit" style="position:relative"><a href="#region-topwrite-limit" aria-label="region topwrite limit permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>region topwrite [limit]</code></h3><p>用于查询写流量最大的 Region。limit 的默认值是 16。</p><p>示例：</p><pre><code class="language-bash">region topwrite "count": 16, "regions": [......], </code></pre><h3 id="region-topconfver-limit" style="position:relative"><a href="#region-topconfver-limit" aria-label="region topconfver limit permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>region topconfver [limit]</code></h3><p>用于查询 conf version 最大的 Region。limit 的默认值是 16。</p><p>示例：</p><pre><code class="language-bash">region topconfver "count": 16, "regions": [......], </code></pre><h3 id="region-topversion-limit" style="position:relative"><a href="#region-topversion-limit" aria-label="region topversion limit permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>region topversion [limit]</code></h3><p>用于查询 version 最大的 Region。limit 的默认值是 16。</p><p>示例：</p><pre><code class="language-bash">region topversion "count": 16, "regions": [......], </code></pre><h3 id="region-topsize-limit" style="position:relative"><a href="#region-topsize-limit" aria-label="region topsize limit permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>region topsize [limit]</code></h3><p>用于查询 approximate size 最大的 Region。limit 的默认值是 16。</p><p>示例：</p><pre><code class="language-bash">region topsize "count": 16, "regions": [......], </code></pre><h3 id="region-check-miss-peer--extra-peer--down-peer--pending-peer--offline-peer--empty-region--hist-size--hist-keys---jqquery-string" style="position:relative"><a href="#region-check-miss-peer--extra-peer--down-peer--pending-peer--offline-peer--empty-region--hist-size--hist-keys---jqquery-string" aria-label="region check miss peer extra peer down peer pending peer offline peer empty region hist size hist keys jqquery string permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>region check [miss-peer | extra-peer | down-peer | pending-peer | offline-peer | empty-region | hist-size | hist-keys] [--jq="&lt;query string&gt;"]</code></h3><p>用于查询处于异常状态的 Region，使用 jq 格式化输出请参考 <a href="#jq-%E6%A0%BC%E5%BC%8F%E5%8C%96-json-%E8%BE%93%E5%87%BA%E7%A4%BA%E4%BE%8B">jq 格式化 JSON 输出示例</a>。</p><p>各类型的意义如下：</p><ul><li>miss-peer：缺副本的 Region</li><li>extra-peer：多副本的 Region</li><li>down-peer：有副本状态为 Down 的 Region</li><li>pending-peer：有副本状态为 Pending 的 Region</li></ul><p>示例：</p><pre><code class="language-bash">region check miss-peer "count": 2, "regions": [......], </code></pre><h3 id="scheduler-show--add--remove--pause--resume--config--describe" style="position:relative"><a href="#scheduler-show--add--remove--pause--resume--config--describe" aria-label="scheduler show add remove pause resume config describe permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>scheduler [show | add | remove | pause | resume | config | describe]</code></h3><p>用于显示和控制调度策略。</p><p>示例：</p><pre><code class="language-bash">&gt;&gt; scheduler show // 显示所有已经创建的 schedulers &gt;&gt; scheduler add grant-leader-scheduler 1 // 把 store 1 上的所有 Region 的 leader 调度到 store 1 &gt;&gt; scheduler add evict-leader-scheduler 1 // 把 store 1 上的所有 Region 的 leader 从 store 1 调度出去 &gt;&gt; scheduler config evict-leader-scheduler // v4.0.0 起，展示该调度器具体在哪些 store 上 &gt;&gt; scheduler add shuffle-leader-scheduler // 随机交换不同 store 上的 leader &gt;&gt; scheduler add shuffle-region-scheduler // 随机调度不同 store 上的 Region &gt;&gt; scheduler add evict-slow-store-scheduler // 当有且仅有一个 slow store 时将该 store 上的所有 Region 的 leader 驱逐出去 &gt;&gt; scheduler remove grant-leader-scheduler-1 // 把对应的调度器删掉，`-1` 对应 store ID &gt;&gt; scheduler pause balance-region-scheduler 10 // 暂停运行 balance-region 调度器 10 秒 &gt;&gt; scheduler pause all 10 // 暂停运行所有的调度器 10 秒 &gt;&gt; scheduler resume balance-region-scheduler // 继续运行 balance-region 调度器 &gt;&gt; scheduler resume all // 继续运行所有的调度器 &gt;&gt; scheduler config balance-hot-region-scheduler // 显示 balance-hot-region 调度器的配置 &gt;&gt; scheduler describe balance-region-scheduler // 显示 balance-region 的运行状态和相应的诊断信息 </code></pre><h3 id="scheduler-describe-balance-region-scheduler" style="position:relative"><a href="#scheduler-describe-balance-region-scheduler" aria-label="scheduler describe balance region scheduler permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>scheduler describe balance-region-scheduler</code></h3><p>用于查看 <code>balance-region-scheduler</code> 的运行状态和相应的诊断信息。</p><p>从 TiDB v6.3.0 起，PD 为 <code>balance-region-scheduler</code> 和 <code>balance-leader-scheduler</code> 提供了运行状态和简要诊断信息的功能，其余 scheduler 和 checker 暂未支持。你可以通过 <code>pd-ctl</code> 修改 <a href="/zh/tidb/dev/pd-configuration-file#enable-diagnostic-从-v630-版本开始引入"><code>enable-diagnostic</code></a> 配置项开启该功能。</p><p>调度器运行状态有以下几种类型：</p><ul><li><code>disabled</code>：表示当前调度器不可用或被移除。</li><li><code>paused</code>：表示当前调度器暂停工作。</li><li><code>scheduling</code>：表示当前调度器正在生成调度。</li><li><code>pending</code>：表示当前调度器无法产生调度。<code>pending</code> 状态的调度器，会返回一个概览信息，来帮助用户诊断。概览信息包含了 store 的一些状态信息，解释了它们为什么不能被选中进行调度。</li><li><code>normal</code>：表示当前调度器无需进行调度。</li></ul><h3 id="scheduler-config-balance-leader-scheduler" style="position:relative"><a href="#scheduler-config-balance-leader-scheduler" aria-label="scheduler config balance leader scheduler permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>scheduler config balance-leader-scheduler</code></h3><p>用于查看和控制 <code>balance-leader-scheduler</code> 策略。</p><p>从 TiDB v6.0.0 起，PD 为 <code>balance-leader-scheduler</code> 引入了 <code>Batch</code> 参数，用于控制 balance-leader 执行任务的速度。你可以通过 pd-ctl 修改 <code>balance-leader batch</code> 配置项设置该功能。</p><p>在 v6.0.0 前，PD 不带有该配置（即 <code>balance-leader batch=1</code>）。在 v6.0.0 或更高版本中，<code>balance-leader batch</code> 的默认值为 <code>4</code>。如果你想为该配置项设置大于 <code>4</code> 的值，你需要同时调大 <a href="#config-show--set-option-value--placement-rules"><code>scheduler-max-waiting-operator</code></a>（默认值 <code>5</code>）。同时调大两个配置项后，你才能体验预期的加速效果。</p><pre><code class="language-bash">scheduler config balance-leader-scheduler set batch 3 // 将 balance-leader 调度器可以批量执行的算子大小设置为 3 </code></pre><h3 id="scheduler-config-balance-hot-region-scheduler" style="position:relative"><a href="#scheduler-config-balance-hot-region-scheduler" aria-label="scheduler config balance hot region scheduler permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>scheduler config balance-hot-region-scheduler</code></h3><p>用于查看和控制 <code>balance-hot-region-scheduler</code> 策略。</p><p>示例：</p><pre><code class="language-bash">scheduler config balance-hot-region-scheduler // 显示 balance-hot-region 调度器的所有配置 "min-hot-byte-rate": 100, "min-hot-key-rate": 10, "min-hot-query-rate": 10, "max-zombie-rounds": 3, "max-peer-number": 1000, "byte-rate-rank-step-ratio": 0.05, "key-rate-rank-step-ratio": 0.05, "query-rate-rank-step-ratio": 0.05, "count-rank-step-ratio": 0.01, "great-dec-ratio": 0.95, "minor-dec-ratio": 0.99, "src-tolerance-ratio": 1.05, "dst-tolerance-ratio": 1.05, "read-priorities": [ "query", "byte" "write-leader-priorities": [ "key", "byte" "write-peer-priorities": [ "byte", "key" "strict-picking-store": "true", "enable-for-tiflash": "true", "rank-formula-version": "v2" </code></pre><ul><li><p><code>min-hot-byte-rate</code> 指计数的最小字节数，通常为 100。</p><pre><code class="language-bash">scheduler config balance-hot-region-scheduler set min-hot-byte-rate 100 </code></pre></li><li><p><code>min-hot-key-rate</code> 指计数的最小 key 数，通常为 10。</p><pre><code class="language-bash">scheduler config balance-hot-region-scheduler set min-hot-key-rate 10 </code></pre></li><li><p><code>min-hot-query-rate</code> 指计数的最小 query 数，通常为 10。</p><pre><code class="language-bash">scheduler config balance-hot-region-scheduler set min-hot-query-rate 10 </code></pre></li><li><p><code>max-zombie-rounds</code> 指一个 operator 可被纳入 pending influence 所允许的最大心跳次数。如果将它设置为更大的值，更多的 operator 可能会被纳入 pending influence。通常用户不需要修改这个值。pending influence 指的是在调度中产生的、但仍生效的影响。</p><pre><code class="language-bash">scheduler config balance-hot-region-scheduler set max-zombie-rounds 3 </code></pre></li><li><p><code>max-peer-number</code> 指最多要被解决的 peer 数量。这个配置可避免调度器处理速度过慢。</p><pre><code class="language-bash">scheduler config balance-hot-region-scheduler set max-peer-number 1000 </code></pre></li><li><p><code>byte-rate-rank-step-ratio</code>、<code>key-rate-rank-step-ratio</code>、<code>query-rate-rank-step-ratio</code> 和 <code>count-rank-step-ratio</code> 分别控制 byte、key、query 和 count 的 step ranks。rank-step-ratio 决定了计算 rank 时的 step 值。<code>great-dec-ratio</code> 和 <code>minor-dec-ratio</code> 控制 <code>dec</code> 的 rank。通常用户不需要修改这些配置项。</p><pre><code class="language-bash">scheduler config balance-hot-region-scheduler set byte-rate-rank-step-ratio 0.05 </code></pre></li><li><p><code>src-tolerance-ratio</code> 和 <code>dst-tolerance-ratio</code> 是期望调度器的配置项。<code>tolerance-ratio</code> 的值越小，调度就越容易。当出现冗余调度时，你可以适当调大这个值。</p><pre><code class="language-bash">scheduler config balance-hot-region-scheduler set src-tolerance-ratio 1.1 </code></pre></li><li><p><code>read-priorities</code>、<code>write-leader-priorities</code> 和 <code>write-peer-priorities</code> 用于控制调度器优先从哪些维度进行热点均衡，支持配置两个维度。</p><ul><li><p><code>read-priorities</code> 和 <code>write-leader-priorities</code> 用于控制调度器在处理 read 和 write-leader 类型的热点时优先均衡的维度，可选的维度有 <code>query</code>、<code>byte</code> 和 <code>key</code>。</p></li><li><p><code>write-peer-priorities</code> 用于控制调度器在处理 write-peer 类型的热点时优先均衡的维度，支持配置 <code>byte</code> 和 <code>key</code> 维度。</p><div class="MuiBox-root css-1weqspv"><div class="MuiPaper-root MuiPaper-elevation MuiPaper-rounded MuiPaper-elevation0 MuiAlert-root MuiAlert-standardInfo MuiAlert-standard css-152gid5" role="alert"><div class="MuiAlert-icon css-1l54tgj"><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeInherit css-1cw4hi4" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="InfoOutlinedIcon"><path d="M11,9H13V7H11M12,20C7.59,20 4,16.41 4,12C4,7.59 7.59,4 12,4C16.41,4 20,7.59 20, 12C20,16.41 16.41,20 12,20M12,2A10,10 0 0,0 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10, 10 0 0,0 12,2M11,17H13V11H11V17Z"/></svg></div><div class="MuiAlert-message css-1xsto0d"><div class="MuiTypography-root MuiTypography-body1 MuiTypography-gutterBottom MuiAlertTitle-root css-17ioyuk">注意</div><p>若集群的所有组件未全部升级到 v5.2 及以上版本，<code>query</code> 维度的配置不生效，部分组件升级完成后调度器仍默认优先从 <code>byte</code> 和 <code>key</code> 维度进行热点均衡，集群的所有组件全部升级完成后，也会继续保持这样的兼容配置，可通过 <code>pd-ctl</code> 查看实时配置。通常用户不需要修改这些配置项。</p></div></div></div><pre><code class="language-bash">scheduler config balance-hot-region-scheduler set read-priorities query,byte </code></pre></li></ul></li><li><p><code>strict-picking-store</code> 是控制热点调度搜索空间的开关，通常为打开。该配置项仅影响 <code>rank-formula-version</code> 为 <code>v1</code> 时的行为。当打开时，热点调度的目标是保证所配置的两个维度的热点均衡。当关闭后，热点调度只保证处于第一优先级的维度的热点均衡表现更好，但可能会导致其他维度的热点不再那么均衡。通常用户不需要修改这个配置项。</p><pre><code class="language-bash">scheduler config balance-hot-region-scheduler set strict-picking-store true </code></pre></li><li><p><code>rank-formula-version</code> 适用于热点调度，其用来确定调度策略的算法版本，支持的值有 <code>["v1", "v2"]</code>。目前该配置的默认值为 <code>v2</code>。</p><ul><li><p><code>v1</code> 版本为 v6.3.0 之前的策略，主要关注调度是否降低了不同 Store 之间的负载差值，以及是否在另一维度引入副作用。</p></li><li><p><code>v2</code> 版本是 v6.3.0 引入的实验特性算法，在 v6.4.0 正式发布，主要关注 Store 之间均衡度的提升率，同时降低了对副作用的关注度。对比 <code>strict-picking-store</code> 为 <code>true</code> 的 <code>v1</code> 算法，<code>v2</code> 版本更注重优先均衡第一维度。对比 <code>strict-picking-store</code> 为 <code>false</code> 的 <code>v1</code> 算法，<code>v2</code> 版本兼顾了第二维度的均衡。</p></li><li><p><code>strict-picking-store</code> 为 <code>true</code> 的 <code>v1</code> 版本算法较为保守，只有当存在两个维度的负载都偏高的 Store 时才能产生调度。在特定场景下有可能因为维度冲突导致无法继续均衡，需要将 <code>strict-picking-store</code> 改为 <code>false</code> 才能在第一维度取得更好的均衡效果。<code>v2</code> 版本算法则可以在两个维度都取得更好的均衡效果，并减少无效调度。</p><pre><code class="language-bash">scheduler config balance-hot-region-scheduler set rank-formula-version v2 </code></pre></li></ul></li><li><p><code>enable-for-tiflash</code> 是控制热点调度是否对 TiFlash 生效的开关。通常为打开，关闭后将不会产生 TiFlash 实例之间的热点调度。</p><pre><code class="language-bash">scheduler config balance-hot-region-scheduler set enable-for-tiflash true </code></pre></li></ul><h3 id="service-gc-safepoint" style="position:relative"><a href="#service-gc-safepoint" aria-label="service gc safepoint permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>service-gc-safepoint</code></h3><p>用于查询当前的 GC safepoint 与 service GC safepoint，输出结果示例如下：</p><pre><code class="language-bash">{ "service_gc_safe_points": [ "service_id": "gc_worker", "expired_at": 9223372036854775807, "safe_point": 439923410637160448 "gc_safe_point": 0 </code></pre><h3 id="store-delete--cancel-delete--label--weight--remove-tombstone--limit--store_id---jqquery-string" style="position:relative"><a href="#store-delete--cancel-delete--label--weight--remove-tombstone--limit--store_id---jqquery-string" aria-label="store delete cancel delete label weight remove tombstone limit store_id jqquery string permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>store [delete | cancel-delete | label | weight | remove-tombstone | limit ] &lt;store_id&gt; [--jq="&lt;query string&gt;"]</code></h3><p>使用 jq 格式化输出请参考 <a href="#jq-%E6%A0%BC%E5%BC%8F%E5%8C%96-json-%E8%BE%93%E5%87%BA%E7%A4%BA%E4%BE%8B">jq 格式化 json 输出示例</a>。</p><h4 id="查询-store" style="position:relative"><a href="#%E6%9F%A5%E8%AF%A2-store" aria-label="查询 store permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>查询 store</h4><p>显示所有 store 信息：</p><pre><code class="language-bash">store "count": 3, "stores": [...] </code></pre><p>获取 id 为 1 的 store：</p><pre><code class="language-bash">store 1 </code></pre><pre><code>...... </code></pre><h4 id="下线-store" style="position:relative"><a href="#%E4%B8%8B%E7%BA%BF-store" aria-label="下线 store permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>下线 store</h4><p>下线 id 为 1 的 store：</p><pre><code class="language-bash">store delete 1 </code></pre><p>执行 <code>store cancel-delete</code> 命令，你可以撤销已使用 <code>store delete</code> 下线并处于 <code>Offline</code> 状态的 store。撤销后，该 store 会从 <code>Offline</code> 状态变为 <code>Up</code> 状态。注意，<code>store cancel-delete</code> 命令无法使 <code>Tombstone</code> 状态的 store 变回 <code>Up</code> 状态。</p><p>撤销通过 <code>store delete</code> 下线 id 为 1 的 store：</p><pre><code class="language-bash">store cancel-delete 1 </code></pre><p>删除所有 Tombstone 状态的 store：</p><pre><code class="language-bash">store remove-tombstone </code></pre><div class="MuiBox-root css-1weqspv"><div class="MuiPaper-root MuiPaper-elevation MuiPaper-rounded MuiPaper-elevation0 MuiAlert-root MuiAlert-standardInfo MuiAlert-standard css-152gid5" role="alert"><div class="MuiAlert-icon css-1l54tgj"><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeInherit css-1cw4hi4" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="InfoOutlinedIcon"><path d="M11,9H13V7H11M12,20C7.59,20 4,16.41 4,12C4,7.59 7.59,4 12,4C16.41,4 20,7.59 20, 12C20,16.41 16.41,20 12,20M12,2A10,10 0 0,0 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10, 10 0 0,0 12,2M11,17H13V11H11V17Z"/></svg></div><div class="MuiAlert-message css-1xsto0d"><div class="MuiTypography-root MuiTypography-body1 MuiTypography-gutterBottom MuiAlertTitle-root css-17ioyuk">注意</div><p>若下线过程中切换了 PD leader，需要使用 <code>store limit</code> 命令修改 <a href="#%E8%AE%BE%E7%BD%AE-store-%E8%B0%83%E5%BA%A6%E9%99%90%E9%80%9F">store 调度限速</a>。</p></div></div></div><h4 id="管理-store-label" style="position:relative"><a href="#%E7%AE%A1%E7%90%86-store-label" aria-label="管理 store label permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>管理 store label</h4><p><code>store label</code> 命令用于管理 store label。</p><ul><li><p>为 id 为 1 的 store 设置键为 <code>"zone"</code>、值为 <code>"cn"</code> 的 label：</p><pre><code class="language-bash">store label 1 zone=cn </code></pre></li><li><p>更新 id 为 1 的 store 的 label：</p><pre><code class="language-bash">store label 1 zone=us </code></pre></li><li><p>通过 <code>--rewrite</code> 选项重写 id 为 1 的 store 的所有 label，之前的 label 会被覆盖：</p><pre><code class="language-bash">store label 1 region=us-est-1 disk=ssd --rewrite </code></pre></li><li><p>删除 id 为 1 的 store 的键为 <code>"disk"</code> 的 label ：</p><pre><code class="language-bash">store label 1 disk --delete </code></pre></li></ul><div class="MuiBox-root css-1weqspv"><div class="MuiPaper-root MuiPaper-elevation MuiPaper-rounded MuiPaper-elevation0 MuiAlert-root MuiAlert-standardInfo MuiAlert-standard css-152gid5" role="alert"><div class="MuiAlert-icon css-1l54tgj"><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeInherit css-1cw4hi4" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="InfoOutlinedIcon"><path d="M11,9H13V7H11M12,20C7.59,20 4,16.41 4,12C4,7.59 7.59,4 12,4C16.41,4 20,7.59 20, 12C20,16.41 16.41,20 12,20M12,2A10,10 0 0,0 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10, 10 0 0,0 12,2M11,17H13V11H11V17Z"/></svg></div><div class="MuiAlert-message css-1xsto0d"><div class="MuiTypography-root MuiTypography-body1 MuiTypography-gutterBottom MuiAlertTitle-root css-17ioyuk">注意</div><ul><li>store 的 label 更新方法使用的是合并策略。如果修改了 TiKV 配置文件中的 store label，进程重启之后，PD 会将自身存储的 store label 与其进行合并更新，并持久化合并后的结果。</li><li>如果希望使用 TiUP 统一管理 store label，你可以在集群重启前，使用 PD Control 的 <code>store label &lt;id&gt; --force</code> 命令将 PD 存储的 store label 清空。</li></ul></div></div></div><h4 id="设置-store-weight" style="position:relative"><a href="#%E8%AE%BE%E7%BD%AE-store-weight" aria-label="设置 store weight permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>设置 store weight</h4><p>将 id 为 1 的 store 的 leader weight 设为 5，Region weight 设为 10：</p><pre><code class="language-bash">store weight 1 5 10 </code></pre><h4 id="设置-store-调度限速" style="position:relative"><a href="#%E8%AE%BE%E7%BD%AE-store-%E8%B0%83%E5%BA%A6%E9%99%90%E9%80%9F" aria-label="设置 store 调度限速 permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>设置 store 调度限速</h4><p>通过 <code>store-limit</code>，你可以设置 store 的调度速度。关于 <code>store limit</code> 的原理和使用方法，请参考 <a href="/zh/tidb/dev/configure-store-limit"><code>store limit</code></a>。</p><pre><code class="language-bash">&gt;&gt; store limit // 显示所有 store 添加和删除 peer 的速度上限 &gt;&gt; store limit add-peer // 显示所有 store 添加 peer 的速度上限 &gt;&gt; store limit remove-peer // 显示所有 store 删除 peer 的速度上限 &gt;&gt; store limit all 5 // 设置所有 store 添加和删除 peer 的速度上限为每分钟 5 个 &gt;&gt; store limit 1 5 // 设置 store 1 添加和删除 peer 的速度上限为每分钟 5 个 &gt;&gt; store limit all 5 add-peer // 设置所有 store 添加 peer 的速度上限为每分钟 5 个 &gt;&gt; store limit 1 5 add-peer // 设置 store 1 添加 peer 的速度上限为每分钟 5 个 &gt;&gt; store limit 1 5 remove-peer // 设置 store 1 删除 peer 的速度上限为每分钟 5 个 &gt;&gt; store limit all 5 remove-peer // 设置所有 store 删除 peer 的速度上限为每分钟 5 个 </code></pre><div class="MuiBox-root css-1weqspv"><div class="MuiPaper-root MuiPaper-elevation MuiPaper-rounded MuiPaper-elevation0 MuiAlert-root MuiAlert-standardInfo MuiAlert-standard css-152gid5" role="alert"><div class="MuiAlert-icon css-1l54tgj"><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeInherit css-1cw4hi4" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="InfoOutlinedIcon"><path d="M11,9H13V7H11M12,20C7.59,20 4,16.41 4,12C4,7.59 7.59,4 12,4C16.41,4 20,7.59 20, 12C20,16.41 16.41,20 12,20M12,2A10,10 0 0,0 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10, 10 0 0,0 12,2M11,17H13V11H11V17Z"/></svg></div><div class="MuiAlert-message css-1xsto0d"><div class="MuiTypography-root MuiTypography-body1 MuiTypography-gutterBottom MuiAlertTitle-root css-17ioyuk">注意</div><p>使用 <code>pd-ctl</code> 可以查看 TiKV 节点的状态信息，即 <code>Up</code>，<code>Disconnect</code>，<code>Offline</code>，<code>Down</code>，或 <code>Tombstone</code>。如需查看各个状态之间的关系，请参考 <a href="/zh/tidb/dev/tidb-scheduling#信息收集">TiKV Store 状态之间的关系</a>。</p></div></div></div><h3 id="log-fatal--error--warn--info--debug" style="position:relative"><a href="#log-fatal--error--warn--info--debug" aria-label="log fatal error warn info debug permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>log [fatal | error | warn | info | debug]</code></h3><p>用于设置 PD leader 的日志级别。</p><pre><code class="language-bash">log warn </code></pre><h3 id="tso" style="position:relative"><a href="#tso" aria-label="tso permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>tso</code></h3><p>用于解析 TSO 到物理时间和逻辑时间。示例如下。</p><p>解析 TSO：</p><pre><code class="language-bash">tso 395181938313123110 </code></pre><pre><code>system: 2017-10-09 05:50:59 +0800 CST logic: 120102 </code></pre><h3 id="unsafe-remove-failed-stores-store-ids--show" style="position:relative"><a href="#unsafe-remove-failed-stores-store-ids--show" aria-label="unsafe remove failed stores store ids show permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a><code>unsafe remove-failed-stores [store-ids | show]</code></h3><div class="MuiBox-root css-1weqspv"><style data-emotion="css 1rl2db2">.css-1rl2db2{font-size:0.875rem;line-height:1.25rem;font-family:"Helvetica Neue","sans-serif";font-weight:400;font-style:normal;color:rgb(95, 33, 32);background-color:rgb(253, 237, 237);display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;padding:6px 16px;}.css-1rl2db2 .MuiAlert-icon{color:#ef5350;}</style><style data-emotion="css 21rxh6">.css-21rxh6{background-color:#fff;color:rgba(0, 0, 0, 0.87);-webkit-transition:box-shadow 300ms cubic-bezier(0.4, 0, 0.2, 1) 0ms;transition:box-shadow 300ms cubic-bezier(0.4, 0, 0.2, 1) 0ms;border-radius:4px;box-shadow:none;font-size:0.875rem;line-height:1.25rem;font-family:"Helvetica Neue","sans-serif";font-weight:400;font-style:normal;color:rgb(95, 33, 32);background-color:rgb(253, 237, 237);display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;padding:6px 16px;}.css-21rxh6 .MuiAlert-icon{color:#ef5350;}</style><div class="MuiPaper-root MuiPaper-elevation MuiPaper-rounded MuiPaper-elevation0 MuiAlert-root MuiAlert-standardError MuiAlert-standard css-21rxh6" role="alert"><div class="MuiAlert-icon css-1l54tgj"><svg class="MuiSvgIcon-root MuiSvgIcon-fontSizeInherit css-1cw4hi4" focusable="false" aria-hidden="true" viewbox="0 0 24 24" data-testid="ErrorOutlineIcon"><path d="M11 15h2v2h-2zm0-8h2v6h-2zm.99-5C6.47 2 2 6.48 2 12s4.47 10 9.99 10C17.52 22 22 17.52 22 12S17.52 2 11.99 2zM12 20c-4.42 0-8-3.58-8-8s3.58-8 8-8 8 3.58 8 8-3.58 8-8 8z"/></svg></div><div class="MuiAlert-message css-1xsto0d"><div class="MuiTypography-root MuiTypography-body1 MuiTypography-gutterBottom MuiAlertTitle-root css-17ioyuk">警告</div><ul><li>此功能为有损恢复，无法保证数据和数据索引完整性。</li><li>建议在 TiDB 团队支持下进行相关操作，操作不当可能导致集群难以恢复。</li></ul></div></div></div><p>用于在多数副本永久损坏造成数据不可用时进行有损恢复。示例如下。详见 <a href="/zh/tidb/dev/online-unsafe-recovery">Online Unsafe Recovery</a>。</p><p>执行 Online Unsafe Recovery，移除永久损坏的节点 (Store):</p><pre><code class="language-bash">unsafe remove-failed-stores 101,102,103 </code></pre><pre><code class="language-bash">Success! </code></pre><p>显示正在运行的 Online Unsafe Recovery 的当前状态或历史状态。</p><pre><code class="language-bash">unsafe remove-failed-stores show "Collecting cluster info from all alive stores, 10/12.", "Stores that have reports to PD: 1, 2, 3, ...", "Stores that have not reported to PD: 11, 12", </code></pre><h2 id="jq-格式化-json-输出示例" style="position:relative"><a href="#jq-%E6%A0%BC%E5%BC%8F%E5%8C%96-json-%E8%BE%93%E5%87%BA%E7%A4%BA%E4%BE%8B" aria-label="jq 格式化 json 输出示例 permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>jq 格式化 JSON 输出示例</h2><h3 id="简化-store-的输出" style="position:relative"><a href="#%E7%AE%80%E5%8C%96-store-%E7%9A%84%E8%BE%93%E5%87%BA" aria-label="简化 store 的输出 permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>简化 <code>store</code> 的输出</h3><pre><code class="language-bash">store --jq=".stores[].store | { id, address, state_name}" </code></pre><pre><code>{"id":1,"address":"127.0.0.1:20161","state_name":"Up"} {"id":30,"address":"127.0.0.1:20162","state_name":"Up"} </code></pre><h3 id="查询节点剩余空间" style="position:relative"><a href="#%E6%9F%A5%E8%AF%A2%E8%8A%82%E7%82%B9%E5%89%A9%E4%BD%99%E7%A9%BA%E9%97%B4" aria-label="查询节点剩余空间 permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>查询节点剩余空间</h3><pre><code class="language-bash">store --jq=".stores[] | {id: .store.id, available: .status.available}" </code></pre><pre><code>{"id":1,"available":"10 GiB"} {"id":30,"available":"10 GiB"} </code></pre><h3 id="查询状态不为-up-的所有节点" style="position:relative"><a href="#%E6%9F%A5%E8%AF%A2%E7%8A%B6%E6%80%81%E4%B8%8D%E4%B8%BA-up-%E7%9A%84%E6%89%80%E6%9C%89%E8%8A%82%E7%82%B9" aria-label="查询状态不为 up 的所有节点 permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>查询状态不为 Up 的所有节点</h3><pre><code class="language-bash">store --jq='.stores[].store | select(.state_name!="Up") | { id, address, state_name}' </code></pre><pre><code>{"id":1,"address":"127.0.0.1:20161""state_name":"Offline"} {"id":5,"address":"127.0.0.1:20162""state_name":"Offline"} </code></pre><h3 id="查询所有的-tiflash-节点" style="position:relative"><a href="#%E6%9F%A5%E8%AF%A2%E6%89%80%E6%9C%89%E7%9A%84-tiflash-%E8%8A%82%E7%82%B9" aria-label="查询所有的 tiflash 节点 permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>查询所有的 TiFlash 节点</h3><pre><code class="language-bash">store --jq='.stores[].store | select(.labels | length&gt;0 and contains([{"key":"engine","value":"tiflash"}])) | { id, address, state_name}' </code></pre><pre><code>{"id":1,"address":"127.0.0.1:20161""state_name":"Up"} {"id":5,"address":"127.0.0.1:20162""state_name":"Up"} </code></pre><h3 id="查询-region-副本的分布情况" style="position:relative"><a href="#%E6%9F%A5%E8%AF%A2-region-%E5%89%AF%E6%9C%AC%E7%9A%84%E5%88%86%E5%B8%83%E6%83%85%E5%86%B5" aria-label="查询 region 副本的分布情况 permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>查询 Region 副本的分布情况</h3><pre><code class="language-bash">region --jq=".regions[] | {id: .id, peer_stores: [.peers[].store_id]}" </code></pre><pre><code>{"id":2,"peer_stores":[1,30,31]} {"id":4,"peer_stores":[1,31,34]} </code></pre><h3 id="根据副本数过滤-region" style="position:relative"><a href="#%E6%A0%B9%E6%8D%AE%E5%89%AF%E6%9C%AC%E6%95%B0%E8%BF%87%E6%BB%A4-region" aria-label="根据副本数过滤 region permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>根据副本数过滤 Region</h3><p>例如副本数不为 3 的所有 Region：</p><pre><code class="language-bash">region --jq=".regions[] | {id: .id, peer_stores: [.peers[].store_id] | select(length != 3)}" </code></pre><pre><code>{"id":12,"peer_stores":[30,32]} {"id":2,"peer_stores":[1,30,31,32]} </code></pre><h3 id="根据副本-store-id-过滤-region" style="position:relative"><a href="#%E6%A0%B9%E6%8D%AE%E5%89%AF%E6%9C%AC-store-id-%E8%BF%87%E6%BB%A4-region" aria-label="根据副本 store id 过滤 region permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>根据副本 store ID 过滤 Region</h3><p>例如在 store30 上有副本的所有 Region：</p><pre><code class="language-bash">region --jq=".regions[] | {id: .id, peer_stores: [.peers[].store_id] | select(any(.==30))}" </code></pre><pre><code>{"id":6,"peer_stores":[1,30,31]} {"id":22,"peer_stores":[1,30,32]} </code></pre><p>还可以像这样找出在 store30 或 store31 上有副本的所有 Region：</p><pre><code class="language-bash">region --jq=".regions[] | {id: .id, peer_stores: [.peers[].store_id] | select(any(.==(30,31)))}" </code></pre><pre><code>{"id":16,"peer_stores":[1,30,34]} {"id":28,"peer_stores":[1,30,32]} {"id":12,"peer_stores":[30,32]} </code></pre><h3 id="恢复数据时寻找相关-region" style="position:relative"><a href="#%E6%81%A2%E5%A4%8D%E6%95%B0%E6%8D%AE%E6%97%B6%E5%AF%BB%E6%89%BE%E7%9B%B8%E5%85%B3-region" aria-label="恢复数据时寻找相关 region permalink" class="anchor before"><svg aria-hidden="true" focusable="false" height="16" version="1.1" viewbox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"/></svg></a>恢复数据时寻找相关 Region</h3><p>例如当 [store1, store30, store31] 宕机时不可用时，我们可以通过查找所有 Down 副本数量大于正常副本数量的所有 Region：</p><pre><code class="language-bash">region --jq=".regions[] | {id: .id, peer_stores: [.peers[].store_id] | select(length as $total | map(if .==(1,30,31) then . else empty end) | length&gt;=$total-length) }" </code></pre><pre><code>{"id":2,"peer_stores":[1,30,31,32]} {"id":12,"peer_stores":[30,32]} {"id":14,"peer_stores":[1,30,32]} </code></pre><p>或者在 [store1, store30, store31] 无法启动时，找出 store1 上可以安全手动移除数据的 Region。我们可以这样过滤出所有在 store1 上有副本并且没有其他 DownPeer 的 Region：</p><pre><code class="language-bash">region --jq=".regions[] | {id: .id, peer_stores: [.peers[].store_id] | select(length&gt;1 and any(.==1) and all(.!=(30,31)))}" </code></pre><pre><code>{"id":24,"peer_stores":[1,32,33]}