zookeeper集群搭建

zookeeper集群搭建

环境要求

  • 安装JDK8

服务器规划

在局域网内规划三台机器:

IP 域名 系统版本号
10.10.x.70 zk.had01 Linux version 5.4.0-70-generic (buildd@lcy01-amd64-004) (gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)) #78-Ubuntu SMP Fri Mar 19 13:29:52 UTC 2021
10.10.x.8 zk.had02 Linux version 5.4.0-70-generic (buildd@lcy01-amd64-004) (gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)) #78-Ubuntu SMP Fri Mar 19 13:29:52 UTC 2021
10.187.x.120 zk.had03 Linux version 3.10.0-957.el7.x86_64 (mockbuild@kbuilder.bsys.centos.org) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-36) (GCC) ) #1 SMP Thu Nov 8 23:39:32 UTC 2018

host文件配置

10.10.27.70    zk.had01
10.10.27.8     zk.had02
10.187.100.120 zk.had03

架构图

下载zookeeper并安装

cd /opt

wget https://archive.apache.org/dist/zookeeper/zookeeper-3.4.10/zookeeper-3.4.10.tar.gz

tar -zxvf zookeeper-3.4.10.tar.gz

chmod +wxr zookeeper-3.4.10

cd zookeeper-3.4.10

mkdir data

mkdir logs

vi conf/zoo.cfg

zoo.cfg内容

# 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=/opt/zookeeper-3.4.10/data
dataLogDir=/opt/zookeeper-3.4.10/logs
server.1=zk.had01:2888:3888
server.2=zk.had02:2888:3888
server.3=zk.had03:2888:3888
# 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.
#
# 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
cd data
vi myid

Note:
根据我们的配置文件：
server.1=zk.had01:2888:3888
server.2=zk.had02:2888:3888
server.3=zk.had03:2888:3888
所以:
zk.had01 的myid 为 1
zk.had02 的myid 为 2
zk.had03 的myid 为 3

将配置好的整个zookeeper-3.4.10文件夹压缩

cd /opt
tar -cvf zookeeper-3.4.10.tar zookeeper.3.4.10

即将刚压缩好的文件夹传送到另外的两台服务器, zk.had02, zk.had03 

scp zookeeper-3.4.10.tar yourusername@yourip:/tmp

分别登陆zk.had02和zk.had03将压缩包zookeeper-3.4.10.tar移至/opt目录下

mv /tmp/zookeeper-3.4.10 /opt

解压该压缩文件

tar -xvf zookeeper-3.4.10.tar

修改myid

cd /opt/zookeeper-3.4.10/data/
vi myid

zk.had02节点的myid修改为2， zk.had03节点的myid修改为3.

启动zookeeper集群

分别ssh进入zk.had01, zk.had02, zk.had03 

cd /opt/zookeeper-3.4.10/bin
./zkServer.sh start

待三台机器都起来后, 再键入

./zkServer.sh status

注意事项:
防火墙的设置，保证ip和端口都能相通.

巨人的肩膀