zookeeper集群/单机搭建

前言

zookeeper模式介绍

zookeeper集群中有三种角色：1、老大Leader(领导者） 2、老二Follower （跟随者） 3、老三Observer（观察者）。
在单机中有一种模式：standlone

zookeeper集群搭建

第一步解压

tar -zxvf /chinaskills/zookeeper-3.4.5.tar.gz -C /opt/module

第二步更改配置

进入zookeeper配置文件目录

cd /opt/module/zookeeper-3.4.5/conf

复制配置文件

cp zoo_sample.cfg zoo.cfg

修改配置及配置介绍

修改dataDir及增加dataLogDir，增加server.x，加粗为具体修改项

# The number of milliseconds of each tick
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
dataLogDir=/tmp/zookeeper/log
# the port at which the clients will connect
clientPort=2181
#
# 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
#有多少主从机器就写多少server.x，端口写没有用的统一一样
server.1=master:2188:3188
server.2=slave1:2188:3188
server.3=slave2:2188:3188

定义集群id

mkdir /tmp/zookeeper/data

vi /tmp/zookeeper/data/myid

然后按照配置的server.x，x就写多少,比如1

其余机器

将zookeeper目录分发下去后，定义集群id

启动

若没有环境变量，在zookeeper目录下bin/命令
zkServer.sh start
需要分别启动，无法统一启动，随后zkServer.sh status查看模式即可，master先启动成为领导者

zookeeper单机搭建

第一步解压

tar -zxvf /chinaskills/zookeeper-3.4.5.tar.gz -C /opt/module

第二步更改配置

进入目录及配置修改

cd /opt/module/zookeeper-3.4.5/conf
cp zoo_sample.cfg zoo.cfg
修改dataDir及增加dataLogDir,加粗为具体修改项

# The number of milliseconds of each tick
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
dataLogDir=/tmp/zookeeper/log
# the port at which the clients will connect
clientPort=2181
#
# 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

启动

若没有环境变量，在zookeeper目录下bin/命令
zkServer.sh start
zkServer.sh status 查看状态，为standlone为成功