SolrCloud之搭建Zookeeper集群

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
[root@HTML5 zookeeper]# cp -r /usr/zht/zookeeper-3.4.6 zookeeper-1
[root@HTML5 zookeeper]# cp -r /usr/zht/zookeeper-3.4.6 zookeeper-2 
[root@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
[root@HTML5 zookeeper]# cd zookeeper-1/ conf/
[root@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
[root@HTML5 bin]# ./zkServer.sh start
JMX enabled by default
Using config: /usr/local/zookeeper/zookeeper-1/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[root@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 : 
[root@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
   

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转载自haiziwoainixx.iteye.com/blog/2088447