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Pre-requisites

• OpenJDK8
• Zookeeper
• git
• maven@v3.3.9

Install OpenJDK

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Building Apache Zookeeper

Download Some distributions like Ubuntu/Debian comes with latest zookeeper.  Hence you can just install using apt-get command "sudo apt-get install zookeeper".  If your distribution does not come with zookeeper then just go for latest download and unzip the Zookeeper package from Official Apache archive in all machines that will be used for zookeeper quorum as shown below:

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Edit zoo.cfg and the below

$ vi zoo.cfg

dataDir=/var/lib/zookeeper
server.1=node1:2888:3888
server.2=node2:2888:3888
server.3=node3:2888:3888

Now, do the below changes in log4.properties file as follows.

$ vi log4j.properties

zookeeper.log.dir=/var/log/zookeeper 

zookeeper.tracelog.dir=/var/log/zookeeper 

log4j.rootLogger=INFO, CONSOLE, ROLLINGFILE

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$ /home/zookeeper/zookeeper-3.4.13/bin/zkServer.sh status

Zookeeper Service Status Check.

In Zookeeper ensemble If you have 3 nodes, out of them, one will be in leader mode and other two will be in follower mode. You can check the status by running the following commands. If you have just one then it will be standalone.

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Install Pre-requities for Build

Hooking up upstream Maven 3.3.9 (for Debian Jessie only)

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