zookeeper安装及运行

水深无声 2022-04-14 03:24 258阅读 0赞

## 一、安装 ##

1、下载zookeeper stable 版本  
下载地址：[http://zookeeper.apache.org/releases.html][http_zookeeper.apache.org_releases.html]  
使用wget 下载

wget https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/stable/zookeeper-3.4.12.tar.gz

2、解压

tar -xf zookeeper-3.4.12.tar.gz 
    mv zookeeper-3.4.12 /home/sharps/tools/

将解压后的zookeeper-3.4.12文件放在系统的/home/sharps/tools/zookeeper-3.4.12。

## 二、配置 ##

1、将zookeeper-3.4.12/conf目录下的zoo\_sample.cfg文件拷贝一份，命名为为“zoo.cfg”  
2、编辑zoo.cfg文件

# 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/sharps/zookeeperdata/zk
    # 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
    server.1=zookeeper:2888:3888

3、设置环境变量

export ZOOKEEPER_INSTALL=/home/sharps/tools/zookeeper-3.4.12
    export PATH=$PATH:$ZOOKEEPER_INSTALL/bin

修改/etc/profile添加

export ZOOKEEPER_INSTALL=/home/sharps/tools/zookeeper-3.4.12
    export PATH=$PATH:$ZOOKEEPER_INSTALL/bin

## 三、运行 ##

1、启动zookeeper

root@sharps-computer:/home/sharps/tools/zookeeper-3.4.12/bin# ./zkServer.sh start
    ZooKeeper JMX enabled by default
    Using config: /home/sharps/tools/zookeeper-3.4.12/bin/../conf/zoo.cfg
    Starting zookeeper ... STARTED

2、测试zookeeper

root@sharps-computer:/home/sharps/tools/zookeeper-3.4.12/bin# ./zkCli.sh -server zookeeper:2181
    Connecting to zookeeper:2181
    2018-11-23 17:22:47,325 [myid:] - INFO  [main:Environment@100] - Client environment:zookeeper.version=3.4.12-e5259e437540f349646870ea94dc2658c4e44b3b, built on 03/27/2018 03:55 GMT
    2018-11-23 17:22:47,327 [myid:] - INFO  [main:Environment@100] - Client environment:host.name=sharps-computer
    2018-11-23 17:22:47,327 [myid:] - INFO  [main:Environment@100] - Client environment:java.version=1.8.0_181
    2018-11-23 17:22:47,328 [myid:] - INFO  [main:Environment@100] - Client environment:java.vendor=Oracle Corporation
    2018-11-23 17:22:47,328 [myid:] - INFO  [main:Environment@100] - Client environment:java.home=/opt/java/jdk1.8.0_181/jre
    2018-11-23 17:22:47,329 [myid:] - INFO  [main:Environment@100] - Client environment:java.class.path=/home/sharps/tools/zookeeper-3.4.12/bin/../build/classes:/home/sharps/tools/zookeeper-3.4.12/bin/../build/lib/*.jar:/home/sharps/tools/zookeeper-3.4.12/bin/../lib/slf4j-log4j12-1.7.25.jar:/home/sharps/tools/zookeeper-3.4.12/bin/../lib/slf4j-api-1.7.25.jar:/home/sharps/tools/zookeeper-3.4.12/bin/../lib/netty-3.10.6.Final.jar:/home/sharps/tools/zookeeper-3.4.12/bin/../lib/log4j-1.2.17.jar:/home/sharps/tools/zookeeper-3.4.12/bin/../lib/jline-0.9.94.jar:/home/sharps/tools/zookeeper-3.4.12/bin/../lib/audience-annotations-0.5.0.jar:/home/sharps/tools/zookeeper-3.4.12/bin/../zookeeper-3.4.12.jar:/home/sharps/tools/zookeeper-3.4.12/bin/../src/java/lib/*.jar:/home/sharps/tools/zookeeper-3.4.12/bin/../conf:.:/opt/java/jdk1.8.0_181/lib:/opt/java/jdk1.8.0_181/jre/lib:/opt/apache-maven-3.5.4/lib
    2018-11-23 17:22:47,329 [myid:] - INFO  [main:Environment@100] - Client environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
    2018-11-23 17:22:47,329 [myid:] - INFO  [main:Environment@100] - Client environment:java.io.tmpdir=/tmp
    2018-11-23 17:22:47,329 [myid:] - INFO  [main:Environment@100] - Client environment:java.compiler=<NA>
    2018-11-23 17:22:47,329 [myid:] - INFO  [main:Environment@100] - Client environment:os.name=Linux
    2018-11-23 17:22:47,329 [myid:] - INFO  [main:Environment@100] - Client environment:os.arch=amd64
    2018-11-23 17:22:47,329 [myid:] - INFO  [main:Environment@100] - Client environment:os.version=4.15.0-39-generic
    2018-11-23 17:22:47,329 [myid:] - INFO  [main:Environment@100] - Client environment:user.name=root
    2018-11-23 17:22:47,329 [myid:] - INFO  [main:Environment@100] - Client environment:user.home=/root
    2018-11-23 17:22:47,329 [myid:] - INFO  [main:Environment@100] - Client environment:user.dir=/home/sharps/tools/zookeeper-3.4.12/bin
    2018-11-23 17:22:47,330 [myid:] - INFO  [main:ZooKeeper@441] - Initiating client connection, connectString=zookeeper:2181 sessionTimeout=30000 watcher=org.apache.zookeeper.ZooKeeperMain$MyWatcher@22d8cfe0
    Welcome to ZooKeeper!
    2018-11-23 17:22:47,344 [myid:] - INFO  [main-SendThread(localhost:2181):ClientCnxn$SendThread@1028] - Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error)
    JLine support is enabled
    2018-11-23 17:22:47,391 [myid:] - INFO  [main-SendThread(localhost:2181):ClientCnxn$SendThread@878] - Socket connection established to localhost/127.0.0.1:2181, initiating session
    [zk: zookeeper:2181(CONNECTING) 0] 2018-11-23 17:22:47,409 [myid:] - INFO  [main-SendThread(localhost:2181):ClientCnxn$SendThread@1302] - Session establishment complete on server localhost/127.0.0.1:2181, sessionid = 0x10000bbae890000, negotiated timeout = 30000
    
    WATCHER::
    
    WatchedEvent state:SyncConnected type:None path:null

如果是本地连接，那么不需要 -server zookeeper:2181,默认是本地  
注意：如果出现拒绝连接，请检查如下：

*  防火墙是否关闭 systemctl stop firewalld
 *  需要将ip映射到本地 /etc/hosts文件中，否则无法连接

## 四、Zookeeper分布式部署 ##

1、手动建立且指定在zk数据目录  
myid必须手动建立且指定在zk数据目录，也就是dataDir指定的路径  
/home/sharps/zookeeperdata/zk1/myid  
/home/sharps/zookeeperdata/zk2/myid  
/home/sharps/zookeeperdata/zk3/myid  
2、修改配置/conf/zoo1.cfg zoo2.cfg zoo3.cfg  
zoo1.cfg

tickTime=2000
    initLimit=10
    syncLimit=5
    dataDir=/home/sharps/zookeeperdata/zk1
    clientPort=2181
    server.1=master:2888(通讯端口):3888（选举端口）
    server.2=master:2889:3889
    server.3=master:2890:3890

zoo2.cfg

tickTime=2000
    initLimit=10
    syncLimit=5
    dataDir=/home/sharps/zookeeperdata/zk2
    clientPort=2182
    server.1=master:2888:3888
    server.2=master:2889:3889
    server.3=master:2890:3890

zoo3.cfg

tickTime=2000
    initLimit=10
    syncLimit=5
    dataDir=/home/sharps/zookeeperdata/zk3
    clientPort=2183
    server.1=master:2888:3888
    server.2=master:2889:3889
    server.3=master:2890:3890

3、Zookeeper及其APi的使用

*  停止Zookeeper  
    sh [zkServer.sh][] stop /home/sharps/tools/zookeeper-3.4.12/conf/zoo1.cfg  
    sh [zkServer.sh][] stop /home/sharps/tools/zookeeper-3.4.12/conf/zoo2.cfg  
    sh [zkServer.sh][] stop /home/sharps/tools/zookeeper-3.4.12/conf/zoo3.cfg
 *  启动Zookeeper  
    sh [zkServer.sh][] start /home/sharps/tools/zookeeper-3.4.12/conf/zoo1.cfg  
    sh [zkServer.sh][] start /home/sharps/tools/zookeeper-3.4.12/conf/zoo2.cfg  
    sh [zkServer.sh][] start /home/sharps/tools/zookeeper-3.4.12/conf/zoo3.cfg
 *  查看zookeeper状态  
    sh [zkServer.sh][] status /home/sharps/tools/zookeeper-3.4.12/conf/zoo1.cfg  
    sh [zkServer.sh][] status /home/sharps/tools/zookeeper-3.4.12/conf/zoo2.cfg  
    sh [zkServer.sh][] status /home/sharps/tools/zookeeper-3.4.12/conf/zoo3.cfg

参考：[https://blog.csdn.net/changshaoshao/article/details/83271736][https_blog.csdn.net_changshaoshao_article_details_83271736]

[http_zookeeper.apache.org_releases.html]: http://zookeeper.apache.org/releases.html
[zkServer.sh]: http://zkServer.sh
[https_blog.csdn.net_changshaoshao_article_details_83271736]: https://blog.csdn.net/changshaoshao/article/details/83271736