Detailed manual of zookeeper cluster construction

osc_4eht81t7 2020-11-09 08:20:42
detailed manual zookeeper cluster construction


The goal is

brief introduction

To configure ZooKeeper colony

  1. Environmental preparation
  2. Configuration steps
  3. start-up ZooKeeper colony

The goal is

  1. understand ZooKeeper essential information ;
  2. Be familiar with the configuration ZooKeeper colony .

brief introduction

ZooKeeper Is used to maintain configuration information , name , A centralized service that provides distributed synchronization and group services .ZooKeeper The goal is to refine the nature of these different services into a very simple interface , To achieve centralized coordination services .

To configure ZooKeeper colony

Environmental preparation

Three stations Linux virtual machine , And they all have JDK Environmental Science .

Configuration steps

First step : Click to enter ZooKeeper Official website , download Linux Version of ZooKeeper Installation package ( This article takes apache-zookeeper-3.6.2-bin.tar.gz Version as an example .);

The second step : Upload apache-zookeeper-3.6.2-bin.tar.gz To /opt Catalog ( A little );

The third step : Unzip the file :

tar -zxvf apache-zookeeper-3.6.2-bin.tar.gz

Step four : stay /opt/apache-zookeeper-3.6.2-bin/conf Create under directory zoo.cfg file , Configure related parameters :

# With zoo_sample.cfg As a template , establish zoo.cfg file .
cp /opt/apache-zookeeper-3.6.2-bin/conf/zoo_sample.cfg /opt/apache-zookeeper-3.6.2-bin/conf/zoo.cfg
#################zoo.cfg The contents of the configuration file are as follows :#################
#ZooKeeper The basic unit of time used ( millisecond ). It's used for heart beating , And the minimum session timeout will be tickTime Twice as many .
# The location where the in memory database snapshot is stored , Unless otherwise stated , Otherwise, it stores the transaction log updated by the database .
# Port used to listen for client connections .
#ZooKeeper The server must be connected to leader Length of time . The length of time set here is 10 second (initLimit*tickTime).
# Limit the timeout range between the server and the host . The time range set here is 4 second (syncLimit*tickTime).
#server.1 Medium 1 Show custom ZooKeeper Service for ID yes 1. Express ZooKeeper Of the host server IP.
#2888 Indicates the use of machine communication within the cluster 2888 port .
#3888 To represent an election leader Use 3888 port .

Step five : According to the configuration dataDirserver.IDIP Create a new catalog and define a service number ;

# new directory 
mkdir /opt/apache-zookeeper-3.6.2-bin/data
# establish myid File and write the content as 1, It's actually configuration server.ID by 1.
echo 1 > /opt/apache-zookeeper-3.6.2-bin/data/myid

Step six : Repeat the above steps for the other two virtual machines , Be careful : The fifth step is to zoo.cfg The content is the standard of operation ( A little ).

start-up ZooKeeper colony

############# stay /opt/apache-zookeeper-3.6.2-bin/bin Execute under directory :#############
# start-up 
./ start
# Check the status 
./ status
# restart 
./ restart
# stop it 
./ stop



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