Zookeeper 集群 - 技术栈

部署准备

至少三台服务器

安装

Zookeeper 安装包准备

配置文件修改

复制一份配置文件命名为 zoo.cfg

shell 复制代码

cp zoo_sample.cfg zoo.cfg

zoo.cfg

修改 dataDir。新增 server.1，server.2，server.3（x.x.x.x:2888:3888）

shell 复制代码

# 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=/home/bigdata/zookeeper/data
# the port at which the clients will connect
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.
#
# https://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

## Metrics Providers
#
# https://prometheus.io Metrics Exporter
#metricsProvider.className=org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider
#metricsProvider.httpHost=0.0.0.0
#metricsProvider.httpPort=7000
#metricsProvider.exportJvmInfo=true

server.1=bigdata1:2888:3888
server.2=bigdata2:2888:3888
server.3=bigdata3:2888:3888

分发配置文件到所有节点

shell 复制代码

# 复制 zookeeper 安装包的解压文件夹到所有的机器
scp -r apache-zookeeper-3.9.2-bin root@x.x.x.x:$PWD

设置myid

在每台机器的 dataDir 配置对应的目录下的 data 文件夹内创建 myid 文件，文件内容分别为 1， 2，3。机器的IP 和 myid 文件的内容需要和配置文件中对应起来。

配置环境变量

shell 复制代码

export ZK_HOME=/usr/bigdata/apache-zookeeper-3.9.2-bin
export PATH=$PATH:$ZK_HOME/bin

启动集群

所有节点执行启动命令

shell 复制代码

zkServer.sh start