CentOS中配置CDH版本的ZooKeeper

三台CentOS:Host0,Host1,Host2

在三台中分别安装zookeeper-server

yum install zookeeper-server -y

修改zookeeper的配置文件(/etc/zookeeper/conf/zoo.cfg)

因为zookeeper集群共有3个节点,所以在配置文件中添加server.0,server.1,server.2

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maxClientCnxns=50
# 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=/var/lib/zookeeper
# the port at which the clients will connect
clientPort=2181
# the directory where the transaction logs are stored.
dataLogDir=/var/lib/zookeeper
#server
server.0 = Host0:2888:3888
server.1 = Host1:2888:3888
server.2 = Host2:2888:3888

2888:3888是Zookeeper多节点之间的通信端口

2888接收端端口,3888发送端端口

在各个Host中添加myid文件,并修改文件所属用户。

echo "0"  /var/lib/zookeeper/myid
chown zookeeper:zookeeper /var/lib/zookeeper/myid

注意,三个主机的/var/lib/zookeeper/myid文件内容不能相同,且与之间的server.0,server.1,server.2的0,1,2相对应。

初始化zookeeper,并启动zookeeper

service zookeeper-server init
service zookeeper-server start

查看zookeeper节点状态

[root@Host0 ~]# zookeeper-server status
JMX enabled by default
Using config: /etc/zookeeper/conf/zoo.cfg
Mode: follower

[root@Host1 ~]# zookeeper-server status
JMX enabled by default
Using config: /etc/zookeeper/conf/zoo.cfg
Mode: leader

[root@Host2 ~]# zookeeper-server status
JMX enabled by default
Using config: /etc/zookeeper/conf/zoo.cfg
Mode: follower

可得Host1是leader,Host0和Host2是follower

转载于:https://www.cnblogs.com/Skyar/p/5836810.html

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