Zookeeper学习

2019 年 04 月 25 日

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3825字数

创建目录

[root@localhost ~]# mkdir -p /usr/local/services/zookeeper
[root@localhost ~]# cd /usr/local/services/
[root@localhost services]# ls
zookeeper
[root@localhost services]# cd zookeeper/

下载

[root@localhost zookeeper]# wget http://mirror.bit.edu.cn/apache/zookeeper/zookeeper-3.4.14/zookeeper-3.4.14.tar.gz

安装

解压

[root@localhost zookeeper]# ls
zookeeper-3.4.14.tar.gz
[root@localhost zookeeper]# tar -zxvf zookeeper-3.4.14.tar.gz

复制一份配置

[root@localhost zookeeper]# cd zookeeper-3.4.14/
[root@localhost zookeeper-3.4.14]# ls
bin        dist-maven       lib          pom.xml               src                       zookeeper-3.4.14.jar.md5   zookeeper-contrib  zookeeper-jute
build.xml  ivysettings.xml  LICENSE.txt  README.md             zookeeper-3.4.14.jar      zookeeper-3.4.14.jar.sha1  zookeeper-docs     zookeeper-recipes
conf       ivy.xml          NOTICE.txt   README_packaging.txt  zookeeper-3.4.14.jar.asc  zookeeper-client           zookeeper-it       zookeeper-server
[root@localhost zookeeper-3.4.14]# cd conf/
[root@localhost conf]# ls
configuration.xsl  log4j.properties  zoo_sample.cfg
[root@localhost conf]# cp zoo_sample.cfg zoo.cfg

修改配置 vim zoo.cfg

    # The number of milliseconds of each tick
 
    # zookeeper 定义的基准时间间隔，单位：毫秒
    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=/tmp/zookeeper
 
    # 数据文件夹
    dataDir=/usr/local/services/zookeeper/zookeeper-3.4.9/data
 
    # 日志文件夹
    dataLogDir=/usr/local/services/zookeeper/zookeeper-3.4.9/logs
 
    # the port at which the clients will connect
    # 客户端访问 zookeeper 的端口号
    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

配置/运行

用 vim 打开 /etc/ 目录下的配置文件 profile：

vim /etc/profile
并在其尾部追加如下内容：

export ZOOKEEPER_HOME=/usr/local/services/zookeeper/zookeeper-3.4.14/
export PATH=$ZOOKEEPER_HOME/bin:$PATH
export PATH

使 /etc/ 目录下的 profile 文件即可生效：

source /etc/profile

启动 zookeeper 服务：

[root@localhost bin]# zkServer.sh start

如打印如下信息则表明启动成功：
ZooKeeper JMX enabled by default
Using config: /usr/local/services/zookeeper/zookeeper-3.4.14/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED

查询 zookeeper 状态：

[root@localhost bin]# zkServer.sh status

打印信息
ZooKeeper JMX enabled by default
Using config: /usr/local/services/zookeeper/zookeeper-3.4.14/bin/../conf/zoo.cfg
Mode: standalone

关闭 zookeeper 服务：

zkServer.sh stop
如打印如下信息则表明成功关闭：
ZooKeeper JMX enabled by default
Using config: /usr/local/services/zookeeper/zookeeper-3.4.14/bin/../conf/zoo.cfg
Stopping zookeeper ... STOPPED
 
重启 zookeeper 服务：
    zkServer.sh restart

centos设置开机启动脚本

reference
在 CentOS7 上安装 zookeeper-3.4.9 服务
Zookeeper总结

Zookeeper学习