Zookeeper集群安装

转载请注明出处：http://www.cnblogs.com/blazer/p/4977217.html

CentOs6.4 Zookeeper-3.4.6

下载解压如图：

当前目录为

/home/BlazerHe/zookeeper/zookeeper-3.4.6/

先创建个data和logs目录，你也可以创建到其他地方

mkdir data
mkdir logs

修改配置文件zoo.cfg

vi conf/zoo.cfg

# 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.
# do not use /tmp for storage, /tmp here is just 
# example sakes.
dataDir=/home/BlazerHe/zookeeper/zookeeper-3.4.6/data
dataLogDir=/home/BlazerHe/zookeeper/zookeeper-3.4.6/logs
# the port at which the clients will connect
clientPort=2181
server.1=test1:2888:3888
#server.2=test1:2888:3888
#server.3=test1:2889:3889
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the 
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1

配置了dataDir和dataLogDir为之前创建的目录

配置zookeeper集群，需要配置server.x

如下：

在一台机器上，用端口来区分（你需要复制2个一模一样的目录作为server.2和server.3）

         如拷贝同样的目录

         /home/BlazerHe/zookeeper/zookeeper-3.4.6-server-2/

         /home/BlazerHe/zookeeper/zookeeper-3.4.6-server-3/

server.1=test1:2887:3887
server.2=test1:2888:3888
server.3=test1:2889:3889

在多台机器上，用IP来区分

server.1=test1:2888:3888
server.2=test2:2888:3888
server.3=test3:2888:3888

然后需要在配置的每一个zookeeper目录的dataDir目录下创建一个myid文件，内容为server.x中x的值

echo 1 > /home/BlazerHe/zookeeper/zookeeper-3.4.6/data/myid

最后可以启动了。

sh bin/zkServer.sh start

连接上去试试命令

sh bin/zkCli.sh -server 127.0.0.1

ls /

 

如果出现如下错误：

[zk: localhost:2181(CONNECTING) 1] stat2016-01-27 20:22:32,713 [myid:] - INFO  [main-SendThread(211.98.70.227:2181):ClientCnxn$SendThread@975] - Opening socket connection to server 211.98.70.227/211.98.70.227:2181. Will not attempt to authenticate using SASL (unknown error)

则非常有可能的原因是：

1.zoo.cfg里面配置的是ip

2./etc/hosts里面没有127.0.0.1 localhost

get /my_data

set /my_data oknon.com

get /my_data

常用命令：

sh bin/zkServer.sh status