备注：当killall haproxy启动服务后发现配置文件还没有生效，就需要删除pidfile(目录：/var/run/haproxy.pid) 文件就,然后可以启动服务了。

启动haproxy 命令 /usr/local/haproxy/sbin/haproxy -f /usr/local/haproxy/haproxy.cfg

如果发现如下错误：

ALERT] 195/134522 (16200) : parsing [/usr/local/haproxy/haproxy.cfg:34] : 'listen' cannot handle unexpected argument '0.0.0.0:80'.
[ALERT] 195/134522 (16200) : parsing [/usr/local/haproxy/haproxy.cfg:34] : please use the 'bind' keyword for listening addresses.
[ALERT] 195/134522 (16200) : parsing [/usr/local/haproxy/haproxy.cfg:40] : 'listen' cannot handle unexpected argument '0.0.0.0:3838'.
[ALERT] 195/134522 (16200) : parsing [/usr/local/haproxy/haproxy.cfg:40] : please use the 'bind' keyword for listening addresses.
[ALERT] 195/134522 (16200) : parsing [/usr/local/haproxy/haproxy.cfg:46] : 'listen' cannot handle unexpected argument '0.0.0.0:4140'.
[ALERT] 195/134522 (16200) : parsing [/usr/local/haproxy/haproxy.cfg:46] : please use the 'bind' keyword for listening addresses.
[ALERT] 195/134522 (16200) : Error(s) found in configuration file : /usr/local/haproxy/haproxy.cfg
[WARNING] 195/134522 (16200) : config : proxy 'payserver' has no 'bind' directive. Please declare it as a backend if this was intended.
[WARNING] 195/134522 (16200) : config : missing timeouts for proxy 'payserver'.
   | While not properly invalid, you will certainly encounter various problems
   | with such a configuration. To fix this, please ensure that all following
   | timeouts are set to a non-zero value: 'client', 'connect', 'server'.
[WARNING] 195/134522 (16200) : config : proxy 'payserver2' has no 'bind' directive. Please declare it as a backend if this was intended.
[WARNING] 195/134522 (16200) : config : missing timeouts for proxy 'payserver2'.
   | While not properly invalid, you will certainly encounter various problems
   | with such a configuration. To fix this, please ensure that all following
   | timeouts are set to a non-zero value: 'client', 'connect', 'server'.
[WARNING] 195/134522 (16200) : config : proxy 'payserver3' has no 'bind' directive. Please declare it as a backend if this was intended.
[WARNING] 195/134522 (16200) : config : missing timeouts for proxy 'payserver3'.
   | While not properly invalid, you will certainly encounter various problems
   | with such a configuration. To fix this, please ensure that all following
   | timeouts are set to a non-zero value: 'client', 'connect', 'server'.
[ALERT] 195/134522 (16200) : Fatal errors found in configuration.
解决方案：找到自己的haprox.cfg文件，查看文件（备注：网上有人给的是如下这种写法的，不知道为什么运行不报错，反正我的运行报错）
########test配置#################
isten payserver 0.0.0.0:80
 mode http
 stats enable
 balance roundrobin
 server s1 192.168.1.11:6013
 server s2 192.168.1.11:7013
listen payserver2 0.0.0.0:8011
 mode http
 stats enable
 balance roundrobin
 server s1 192.168.1.11:6014
 server s2 192.168.1.11:7014
 
将上面 listen 后面的内容改为：
 
listen payserver
 
  bind 0.0.0.0:80
 
就可以解决语法错误，让haproxy正常运行
Mar 5, 2016
keepalived、haproxy、mycat的下载安装配置运行，rsyslog的配置运行与测试，简单的haproxy健康检查，haproxy监控，系统访问测试，切换过程中的影响，和部署过程中的注意事项
refere
				
haproxy+keepalived的高可用负载部署
环境介绍：
ubuntu；腾讯云；172.27.0.11（master）172.27.0.11（backup）172.27.0.26（腾讯云控制台申请的虚拟ip）
在172.27.0.9上部署haproxy
下载解压以及安装
wget http://download.openpkg.org/components/cache/haprox...
本文介绍如何安装虚拟机VMware以及如果在虚拟机上安装Linux系统以及Linux安装完毕之后的基础配置
需要准备的东西有VMware以及Linux镜像文件
二、下载安装VMware
https://my.vmware.com/en/web/vmware/info/slug/desktop_end_user_computing/vmware_workstat...
http://blog.csdn.net/onlyanyz/article/details/45009697
https://www.cnblogs.com/fendou-999/p/3822028.html
2、IndentationE...
				
Bug整理
执行nginx -s reload重启nginx
nginx: [error] invalid PID number "" in "/run/nginx.pid"
nginx -c /etc/nginx/nginx.conf
官方文档：
http://cbonte.github.io/haproxy-dconv/
http://cbonte.github.io/haproxy-dconv/2.1/configuration.html
HAProxy 的配置文件haproxy.cfg由两大部分组成，分别是global和proxies部分，配置文件对缩进没有要求
global：全局配置段
进程及安全配置相关的参数
性能调整相关参数
Debug参数
proxies：代理配置段
defaults：为fronten
2. 问题解决
(1) 一开始我以为是pytorch版本的问题，于是转移到笔记上，发现还是这个问题；
(2)  又查看了之前写的其他模型，并没有发现类似这种写法有什么问题，于是复制了其他模型的一个层，在新模型中去调用该层。发现没有问题！于是详细对比这者的区别：
发现 init 写错
HAProxy状态页配置项
stats enable    #基于默认的参数启用stats page
stats hide-version  #将状态页中haproxy版本隐藏
stats refresh <delay>   #设定自动刷新时间间隔，默认不自动刷新,以秒为单位
stats uri <prefix>  #自定义stats page