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but i have a problem.

My kafka version is kafka 2.11-0.0.0

 $ bin/kafka-server-start.sh config/zookeeper.properties 
[2017-01-31 09:15:55,216] FATAL  (kafka.Kafka$)
org.apache.kafka.common.config.ConfigException: Missing required configuration "zookeeper.connect" which has no default value.
    at org.apache.kafka.common.config.ConfigDef.parse(ConfigDef.java:148)
    at org.apache.kafka.common.config.AbstractConfig.<init>(AbstractConfig.java:49)
    at org.apache.kafka.common.config.AbstractConfig.<init>(AbstractConfig.java:56)
    at kafka.server.KafkaConfig.<init>(KafkaConfig.scala:702)
    at kafka.server.KafkaConfig$.fromProps(KafkaConfig.scala:691)
    at kafka.server.KafkaServerStartable$.fromProps(KafkaServerStartable.scala:28)
    at kafka.Kafka$.main(Kafka.scala:58)
    at kafka.Kafka.main(Kafka.scala)
please help me .
my zookeeper.properties (down)
zookeeper.properties
dataDir=/home/kafka01/zookeeper-data
# the port at which the clients will connect
clientPort=2181
# disable the per-ip limit on the number of connections since this is a non-production config
maxClientCnxns=0
initLimit=5
syncLimit=2
server.1=kafka01:2888:3888
server.2=kafka02:2888:3888
server.3=kafka03:2888:3888
server.properties
zookeeper.connect=kafka01:2181,kafka02:2181,kafka03:2181
what is the problem??
You are trying to start a kafka server but you are passing the wrong config file.
Usually you want to start a kafka server using the following command:
./kafka-server-start.sh ../config/server.properties
And is in this file where you specify the address of the zookeeper:
zookeeper.connect=kafka01:2181,kafka02:2181,kafka03:2181
The quickstart guide in the kafka official documentation is quite good, I recommend you to have a look at it. You can find it here.
You are trying to start kafka server with zookeeper config properties file and that's why you are getting the above error.
Use the commands below instead:
Zookeeper:
.\bin\windows\zookeeper-server-start.bat .\config\zookeeper.properties
Kafka:
.\bin\windows\kafka-server-start.bat .\config\server.properties
Start the zookeeper server separately(on your local or another machine)
Start the zookeeper server which is embedded with Kafka server (kafka_2.12/libs/zookeeper-3.4.13.jar)
In first case:
I am assuming you have started the zookeeper server already and that is running on localhost:2181
So now you are good to start kafka server using following command
bin\windows\kafka-server-start.bat ..\..\config\server.properties
In server.properties file you have to tell Kafka server where is/are the zookeeper(s) running. Using property:
## zookeeper.connect=localhost:2181 [default]
zookeeper.connect=zk1:2181, zk2:2181, localhost:2181
In second case
Start the zookeeper first (embedded with the Kafka server)
bin\windows\zookeeper-server-start.bat ..\..\config\zookeeper.properties
Then, start the Kafka server:
bin\windows\kafka-server-start.bat ..\..\config\server.properties
                I had somehow overridden my server.properties file. this go me on the rite track, thanks. quick google search later, and all good "kafka server.properties example"
– ASH
                Oct 21, 2021 at 15:17
This is the error because there is an issue with your command.
To start zookeeper run -
zookeeper-server-start.sh config/zookeeper.properties
To start server run -
kafka-server-start.sh config/zookeeper.properties
You need to start the zookeeper with:
zookeeper-server-start.sh ~/kafka/config/zookeeper.properties
Then you need to start the kafka-server using:
kafka-server-start.sh ~/kafka/config/server.properties
Now your kafka will run smoothly
        
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