How to install Zookeeper service on Linux system

1. Create the /usr/local/services/zookeeper folder:

  mkdir -p /usr/local/services/zookeeper

2. Enter the /usr/local/services/zookeeper directory:

  cd /usr/local/services/zookeeper

3. Download zookeeper-3.4.9.tar.gz:

 wget https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/zookeeper-3.4.9/zookeeper-3.4.9.tar.gz

4. Unzip zookeeper-3.4.9.tar.gz:

  tar -zxvf zookeeper-3.4.9.tar.gz

5. Enter the /usr/local/services/zookeeper/zookeeper-3.4.9/conf directory:

cd zookeeper-3.4.9/conf/

6. Copy the zoo_sample.cfg file and name it zoo.cfg:

cp zoo_sample.cfg zoo.cfg

7. Use vim to open the zoo.cfg file and modify its content as follows:

# The number of milliseconds of each tick
    # The benchmark time interval defined by zookeeper, unit: milliseconds tickTime=2000
   # The number of ticks that the initial 
   # synchronization phase can take
   initLimit=10
   # The number of ticks that can pass between 
   # sending a request and getting an acknowledgement
   syncLimit=5
   # the directory where the snapshot is stored.
   # do not use /tmp for storage, /tmp here is just 
   # example sakes.
   # dataDir=/tmp/zookeeper
   #Data folder dataDir=/usr/local/services/zookeeper/zookeeper-3.4.9/data
   # Log folder dataLogDir=/usr/local/services/zookeeper/zookeeper-3.4.9/logs
   # the port at which the clients will connect
   # The port number for the client to access zookeeper is clientPort=2181
   # the maximum number of client connections.
   # increase this if you need to handle more clients
   #maxClientCnxns=60
   #
   # Be sure to read the maintenance section of the 
   # administrator guide before turning on autopurge.
   #
   # http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
   #
   # The number of snapshots to retain in dataDir
   #autopurge.snapRetainCount=3
   # Purge task interval in hours
   # Set to "0" to disable auto purge feature
   #autopurge.purgeInterval=1

8. Save and close the zoo.cfg file:

9. Enter the /usr/local/services/zookeeper/zookeeper-3.4.9/bin directory:

cd ../bin/

10. Use vim to open the profile configuration file in the /etc/ directory:

vim /etc/profile

And append the following content at the end:

 # idea - zookeeper-3.4.9 config start - 2016-09-08
   export ZOOKEEPER_HOME=/usr/local/services/zookeeper/zookeeper-3.4.9/
   export PATH=$ZOOKEEPER_HOME/bin:$PATH
   export PATH
   # idea - zookeeper-3.4.9 config start - 2016-09-08

11. Make the profile file in the /etc/ directory effective:

 source /etc/profile

12. Start the zookeeper service:

zkServer.sh start

If the following information is printed, it indicates that the startup is successful:

  ZooKeeper JMX enabled by default
   Using config: /usr/local/services/zookeeper/zookeeper-3.4.9/bin/../conf/zoo.cfg
   Starting zookeeper ... STARTED

13. Query the zookeeper status:

  zkServer.sh status

14. Shut down the zookeeper service:

 zkServer.sh stop

If the following information is printed, it indicates successful closure:

 ZooKeeper JMX enabled by default
   Using config: /usr/local/services/zookeeper/zookeeper-3.4.9/bin/../conf/zoo.cfg
   Stopping zookeeper ... STOPPED

15. Restart the zookeeper service:

zkServer.sh restart

If the following information is printed, it indicates that the restart is successful:

  ZooKeeper JMX enabled by default
   Using config: /usr/local/services/zookeeper/zookeeper-3.4.9/bin/../conf/zoo.cfg
   ZooKeeper JMX enabled by default
   Using config: /usr/local/services/zookeeper/zookeeper-3.4.9/bin/../conf/zoo.cfg
   Stopping zookeeper ... STOPPED
   ZooKeeper JMX enabled by default
   Using config: /usr/local/services/zookeeper/zookeeper-3.4.9/bin/../conf/zoo.cfg
   Starting zookeeper ... STARTED

Summarize

The above is the introduction of installing Zookeeper service in Linux. I hope it will be helpful to you. If you have any questions, please leave me a message and I will reply to you in time. I would also like to thank everyone for their support of the 123WORDPRESS.COM website!

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