Zookeeper Quick-Start on Ubuntu 14.04 Trusty LTS 32-64bit Linux Easy Guide

October 10th, 2014 by thelinuxevangelist

Quick-Start Zookeeper for Ubuntu 14.04 Trusty LTS



The Linux Tutorial Shows You Step-by-step How-to Getting-Started with Apache Zookeeper on Ubuntu 14.04 Trusty Tahr LTS i386/amd64 Linux.

ZooKeeper allows distributed processes to coordinate with each other through a shared hierarchal namespace which is organized similarly to a standard file system. The name space consists of data registers – called znodes, in ZooKeeper parlance – and these are similar to files and directories. Unlike a typical file system, which is designed for storage, ZooKeeper data is kept in-memory, which means ZooKeeper can acheive high throughput and low latency numbers.

Quick-Start with Zookeper on Ubuntu 14.04 Trusty - Featured
  1. How-to Install Zookeeper on Ubuntu Linux:

    Setting Up Zookeeper for Ubuntu
  2. Open Terminal Window
    Ctr+Alt+t
    (Press “Enter” to Execute Commands)

    Ubuntu 14.04 Trusty LTS Zookeeper Quick-Start - Featured
  3. Making the Zookeeper Data Directory

    sudo su -c "mkdir /var/lib/zookeeper"
  4. Creating the Zookeeper Configuration File

    cd /opt/zookeeper
    sudo su -c "nano conf/zoo.cfg"

    Append for Example:

    tickTime=2000
    dataDir=/var/lib/zookeeper
    clientPort=2181
    

    tickTime: the basic time unit in milliseconds used by ZooKeeper. It is used to do heartbeats and the minimum session timeout will be twice the tickTime.
    Ctrl+x to Save & Exit from nano Editor :)

  5. Starting Up the Zookeeper Server

    cd /opt/zookeeper
    sudo bin/zkServer.sh start
  6. Connecting by Java Client to Zookeeper Server

    bin/zkCli.sh -server 127.0.0.1:2181

    The Zookeeper Shell Prompt:

    [zkshell: 0]
  7. Exploring Zookeeper Shell

    Showing Up Commands:

    [zkshell: 0] help

    Create a Z-Node:

    [zkshell: 0] create /zk_node my_data

    Listing the Z-Nodes:

    [zkshell: 0] ls /

    Showing the Data Associated to a Z-Node:

    [zkshell: 0] get /zk_node

    The Output will Show up: “my_data” as First entry.

    Changing the Data Associated to a Z-Node:

    [zkshell: 0] set /zk_node hello

    Deleting a Z-Node:

    [zkshell: 0] delete /zk_node
  8. For More See Zookeeper Programmers Docs:

    Zookeeper Programmer’s Guide
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