SolrCloud之搭建Zookeeper集群

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一.搭建Zookeeper集群
1.下载地址
           http://zookeeper.apache.org/releases.html#download
 
2.解压缩，tar -xvzf zookeeper-3.4.6.tar.gz 

复制出3个节点

















[iyunv@HTML5 zookeeper]# cp -r /usr/zht/zookeeper-3.4.6 zookeeper-1

[iyunv@HTML5 zookeeper]# cp -r /usr/zht/zookeeper-3.4.6 zookeeper-2 

[iyunv@HTML5 zookeeper]# cp -r /usr/zht/zookeeper-3.4.6 zookeeper-3

（本文是在一台机器测试，实际上肯定是要分在几台服务器上部署的，否则没有意义）

 
3.分别修改配置文件

[iyunv@HTML5 zookeeper]# cd zookeeper-1/ conf/

















[iyunv@HTML5 conf]# cp zoo_sample.cfg zoo.cfg 

















修改zoo.cfg如下：

















# 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.

















dataDir=/usr/local/data/zookeeper/zookeeper-1

















dataLogDir=/usr/local/data/zookeeper/logs-1

















# the port at which the clients will connect

















clientPort=1181

















 
server.1=127.0.0.1:2888:3888

















server.2=127.0.0.1:4888:5888

















server.3=127.0.0.1:6888:7888

        标红部分为需要修改内容，clientPort在多服务器时不必修改
 

　　4.给节点分配ID
        进入上文配置的dataDir=/usr/local/data/zookeeper/zookeeper-1，新建文件：myid，内容为该节点ID
        如：/usr/local/data/zookeeper/zookeeper-1 目录下myid内容为1
 
5.启动各节点

[iyunv@HTML5 bin]# ./zkServer.sh start


JMX enabled by default


Using config: /usr/local/zookeeper/zookeeper-1/bin/../conf/zoo.cfg


Starting zookeeper ... STARTED


[iyunv@HTML5 bin]# ./zkServer.sh status


JMX enabled by default


Using config: /usr/local/zookeeper/zookeeper-1/bin/../conf/zoo.cfg


Mode: follower

 
           ./zkServer.sh  start | stop | status (start:启动  stop:关闭   status:查看状态，如谁是leader)

通过 ./zkCli.sh -server host:port  可以进入zookeeper的控制台。比如使用 ： 






















[iyunv@HTML5 bin]# ./zkCli.sh -server 127.0.0.1:1181
 就可以登录zookeeper-1控制台





















 

6.常用命令
    ls /等命令可以查看zookeeper上面的文件。
    例如： ls /live_nodes 查看各节点存活情况
    rmr 可以删除文件