zookeeper的安装

本篇作为博主的记录过程

下载zookeeper的tar.gz包

在解压压缩包，解压的位置可以自己选择，我放在了/usr/local/下

tar -zxvf  zookeeper-版本号.tar.gz

我把带版本好的文件夹mv成zookeeper

mv zookeeper-版本号 zookeeper

需要把zookeeper内的配置文件copy成zoo.cfg

cp zoo_sample.cfg  zoo.cfg       因为要启动的时候系统回去找zoo.cfg文件，如果没有的话会报找不到zoo.cfg的错误

修改zoo.cfg的配资文件(参考链接：http://www.cnblogs.com/ilovexiao/p/3946547.html)

vim 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=/datatmp/zookeeper/data
dataLogDir=/datatmp/zookeeper/logs
# the port at which the clients will connect
clientPort=2181
# 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

#2888,3888 are election port
server.1=zookeeper:2888:38888

红字部分可按照自己的修改，并建立相应的文件夹

修改配置文件profile

vim /etc/profile

export ZOOKEEPER_HOME=/usr/java/zookeeper-3.4.3     (必要的,路径要与zookeeper文件夹路径一致)export PATH=$ZOOKEEPER_HOME/bin:$PATH               (必要的)export PATH

然配置文件生效

source profile

配置服务命令，和开机启动

cd  /etc/init.d

vim zookeeper

添加以下内容

#!/bin/bash  
#chkconfig: 2345 10 90  
#description: service zookeeper  
export    JAVA_HOME=/usr/java/jdk1.8


ZOOKEEPER_HOME=/usr/local/zookeeper
case  "$1"   in
          start)  su  root   ${ZOOKEEPER_HOME}/bin/zkServer.sh   start;;
          start-foreground)  su  root  ${ZOOKEEPER_HOME}/bin/zkServer.sh    start-foreground;;
          stop)  su  root   ${ZOOKEEPER_HOME}/bin/zkServer.sh   stop;;
          status)  su root  ${ZOOKEEPER_HOME}/bin/zkServer.sh    status;;
          restart)  su root   ${ZOOKEEPER_HOME}/bin/zkServer.sh   restart;;
          upgrade)su root   ${ZOOKEEPER_HOME}/bin/zkServer.sh   upgrade;;
          print-cmd)su root   ${ZOOKEEPER_HOME}/bin/zkServer.sh   print-cmd;;
          *)  echo  "requirestart|start-foreground|stop|status|restart|print-cmd";;
esac    

修改权限

chmod +x zookeeper（可执行）

配置开机启动

chkconfig --add zookeeper

查看是否已经添加到开机启动列表

chkconfig  --list

查看网络状态，端口是否已经被使用

netstat   -lntup