CentOS6.5下安装ZooKeeper3.4.8单机模式(Standalone mode)

1.需求

安装ZooKeeper

2.下载

http://mirror.bit.edu.cn/apache/zookeeper/zookeeper-3.4.8/

当前stable版是zookeeper-3.4.8

3.解压

上传到/usr/local路径下

tar –xf  zookeeper-3.4.8.tar.gz

解压文件到"/usr/local/zookeeper-3.4.8".

4.复制conf目录下的zoo_sample.cfg,并命名为zoo.cfg

5.修改zoo.cfg配置文件

# The number of millisecondsof each tick

tickTime=2000

# The number of ticks thatthe initial

# synchronization phase cantake

initLimit=10

# The number of ticks thatcan pass between

# sending a request andgetting an acknowledgement

syncLimit=5

# the directory where thesnapshot is stored.

# do not use /tmp forstorage, /tmp here is just

# example sakes.

dataDir=/data/zookeeper/data

dataLogDir=/data/zookeeper/logs

# the port at which theclients will connect

clientPort=2181

# the maximum number ofclient connections.

# increase this if you needto handle more clients

#maxClientCnxns=60

#

# Be sure to read themaintenance section of the

# administrator guide beforeturning on autopurge.

#

#http://zookeeper.apache.org/doc/ ... html#sc_maintenance

#

# The number of snapshots toretain in dataDir

#autopurge.snapRetainCount=3

# Purge task interval inhours

# Set to "0" todisable auto purge feature

#autopurge.purgeInterval=1

启动：

cd/usr/local/zookeeper-3.4.8/bin

./zkServer.sh start

查看状态：

cd/usr/local/zookeeper-3.4.8/bin

./zkServer.shstatus

启动客户端

cd/usr/local/zookeeper-3.4.8/bin

./zkCli.sh -server 127.0.0.1:2181

停止zookeeper进程：

cd/usr/local/zookeeper-3.4.8/bin

./zkServer.shstop

修改防火墙：

在开启了防火墙时，如果用java客户端连接时，会报连接失败错误，做如下设置，开启相关端口， 

修改/etc/sysconfig/iptables 文件，添加以下内容： 

vi /etc/sysconfig/iptables 

-A INPUT -m state --state NEW -m tcp -p tcp --dport 2181 -j ACCEPT

修改完后，重启防火墙：

service iptables stop 

service iptables start