[hadoop@hadoop101 software]$
tar -zxvf apache-zookeeper-3.5.7 bin.tar.gz -C /opt/module/
[hadoop@hadoop101 module]$ mv apache-zookeeper-3.5.7 -bin/ zookeeper-3.5.7
[hadoop@hadoop101 conf]$ mv zoo_sample.cfg zoo.cfg
[hadoop@hadoop101 zookeeper-3.5.7]$ sudo vim zoo.cfg
修改如下内容:
dataDir=/opt/module/zookeeper-3.5.7/zkData
[hadoop@hadoop101 zookeeper-3.5.7]$ mkdir zkData
[hadoop@hadoop101 zookeeper-3.5.7]$ bin/zkServer.sh start
[hadoop@hadoop101 zookeeper-3.5.7]$ jps
4020 Jps
4001 QuorumPeerMain
[hadoop@hadoop101 zookeeper-3.5.7]$ bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /opt/module/zookeeper-3.5.7/bin/../conf/zoo.cfg
Mode: standalone
[atguigu@hadoop101 zookeeper-3.5.7]$ bin/zkCli.sh
[zk: localhost:2181(CONNECTED) 0] quit
[hadoop@hadoop101 zookeeper-3.5.7]$ bin/zkServer.sh stop
Zookeeper中的配置文件zoo.cfg中参数含义解读如下:
1)tickTime = 2000:通信心跳时间,Zookeeper服务器与客户端心跳时间,单位毫秒
2 ) initLimit = 10:LF初始通信时限
Leader和Follower初始连接时能容忍的最多心跳数(tickTime的数量)
3 ) syncLimit =5: LF同步通信时限
Leader和Follower之间通信时间如果超过syncLimit * tickTime,Leader认为Follwer死
掉,从服务器列表中删除Follwer。
4) dataDir:保存Zookeeper中的数据
注意:默认的tmp目录,容易被Linux系统定期删除,所以一般不用默认的tmp目录。
5) clientPort = 2181:客户端连接端口,通常不做修改。
[hadoop@hadoop101 software]$
tar -zxvf apache-zookeeper-3.5.7 bin.tar.gz -C /opt/module/
[hadoop@hadoop101 module]$ mv apache-zookeeper-3.5.7-bin/ zookeeper-3.5.7
[hadoop@hadoop101 zookeeper-3.5.7]$ mkdir zkData
[hadoop@hadoop101 zkData]$ sudo vi myid
在文件中添加与 server 对应的编号(注意:上下不要有空行,左右不要有空格)
[hadoop@hadoop101 module ]$
scp zookeeper-3.5.7 [email protected]:/opt/module/zookeeper-3.5.7/conf
[hadoop@hadoop101 module]$
scp zookeeper-3.5.7 [email protected]:/opt/module/zookeeper-3.5.7/conf
并分别在 hadoop102、hadoop103 上修改 myid 文件中内容为 3、4
[hadoop@hadoop101 conf]$ mv zoo_sample.cfg zoo.cfg
[hadoop@hadoop101 conf]$sudo vim zoo.cfg
#修改数据存储路径配置
dataDir=/opt/module/zookeeper-3.5.7/zkData
#增加如下配置
#######################cluster########################## server.1=hadoop101:2888:3888
server.2=hadoop102:2888:3888
server.3=hadoop103:2888:3888
server.A=B:C:D。
Leader,而这个端口就是用来执行选举时服务器相互通信的端口。
[hadoop@hadoop101 conf]$
scp zoo.cfg [email protected]:/opt/module/zookeeper-3.5.7/conf
[hadoop@hadoop101 conf]$
scp zoo.cfg [email protected]:/opt/module/zookeeper-3.5.7/conf
[hadoop@hadoop101 zookeeper-3.5.7]$ bin/zkServer.sh start
[hadoop@hadoop102 zookeeper-3.5.7]$ bin/zkServer.sh start
[hadoop@hadoop103 zookeeper-3.5.7]$ bin/zkServer.sh start
[hadoop@hadoop101 zookeeper-3.5.7]# bin/zkServer.sh status
JMX enabled by default
Using config: /opt/module/zookeeper-3.5.7/bin/../conf/zoo.cfg
Mode: follower
[hadoop@hadoop102 zookeeper-3.5.7]# bin/zkServer.sh status
JMX enabled by default
Using config: /opt/module/zookeeper-3.5.7/bin/../conf/zoo.cfg
Mode: follower
[hadoop@hadoop103 zookeeper-3.4.5]# bin/zkServer.sh status
JMX enabled by default
Using config: /opt/module/zookeeper-3.5.7/bin/../conf/zoo.cfg
Mode: leader
3.1.3 ZK 集群启动停止脚本
[hadoop@hadoop101 bin]$ sudo vim zk.sh
[hadoop@hadoop101 bin]$ ll
[hadoop@hadoop101 bin]$ sudo chown -R hadoop:hadoop /home/hadoop/bin
[hadoop@hadoop101 bin]$ ll
在脚本中编写如下内容
#!/bin/bash case $1 in "start"){ for i in hadoop102 hadoop103 hadoop104 do echo "---------- zookeeper $i 启动 ------------" ssh $i "/opt/module/zookeeper-3.5.7/bin/zkServer.sh start" done };; "stop"){ for i in hadoop102 hadoop103 hadoop104 do echo "---------- zookeeper $i 停止 ------------ " ssh $i "/opt/module/zookeeper-3.5.7/bin/zkServer.sh stop" done };; "status"){ for i in hadoop102 hadoop103 hadoop104 do echo "---------- zookeeper $i 状态 ------------ " ssh $i "/opt/module/zookeeper-3.5.7/bin/zkServer.sh status" done };; esac |
[hadoop@hadoop102 bin]$ chmod u+x zk.sh
[hadoop@hadoop102 bin]$ zk.sh start
[hadoop@hadoop102 bin]$ zk.sh stop