zookeeper-3.4.6集群的搭建步骤

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我们采用zookeeper-3.4.6来搭建zookeeper集群，硬件为三台DELL服务器（已经关闭防火墙并且配置好ssh互信）：

192.168.4.33 bi3

192.168.4.34 bi4

192.168.4.35 bi5

1. 解压zookeeper-3.4.6安装包到/home/hadoop/work目录下：/home/hadoop/work/zookeeper-3.4.6

2. 配置conf/zoo.cfg

# the directory where the snapshot is stored.# do not use /tmp for storage, /tmp here is just # example sakes.dataDir=/home/hadoop/work/zookeeper-3.4.6/var/datadataLogDir=/home/hadoop/work/zookeeper-3.4.6/var/datalog# the port at which the clients will connectclientPort=2181server.1=bi3:2888:3888server.2=bi4:2888:3888server.3=bi5:2888:3888

3. 新建目录

mkdir /home/hadoop/work/zookeeper-3.4.6/var/datamkdir /home/hadoop/work/zookeeper-3.4.6/var/datalog

4. 编辑/home/hadoop/work/zookeeper-3.4.6/var/data/myid，三台机器的内容分别如下：

启动zookeeper集群，分别在三台机器上执行下面的命令

/home/hadoop/work/zookeeper-3.4.6/bin/zkServer.sh start

验证集群是否可用

[hadoop@bi5 apps]$ /home/hadoop/work/zookeeper-3.4.6/bin/zkCli.sh -server 127.0.0.1:2181

进入zookeeper的client命令行模式，在根目录下创建/zktest，然后查看是否创建成功

[zk: 127.0.0.1:2181(CONNECTED) 4] create /zktest testCreated /zktest[zk: 127.0.0.1:2181(CONNECTED) 5] ls /[consumers, zktest, rmstore, mytest, spark, yarn-leader-election, spark-test, controller_epoch, dubbo, hbase, hadoop-ha, zookeeper, admin, config, brokers][zk: 127.0.0.1:2181(CONNECTED) 6] get /zktesttestcZxid = 0xf0006967bctime = Mon Feb 15 17:19:32 CST 2016mZxid = 0xf0006967bmtime = Mon Feb 15 17:19:32 CST 2016pZxid = 0xf0006967bcversion = 0dataVersion = 0aclVersion = 0ephemeralOwner = 0x0dataLength = 4numChildren = 0

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