ookeeper支持windows、linux、mac等操作系统，其搭建方式也有集群、伪集群、单机环境。下面研究三种方式的搭建。
单机环境:windows操作系统
伪集群:windows
集群:linux
单机环境
下面在windows下面搭建zookeeper的单机环境。windows下面也适合做开发。但是不适合生产环境的部署安装。
java安装
zookeeper依赖于Java环境，所以先自行安装JDK。
Zookeeper下载及其安装
(1)下载zookeeperxxx.tar.gz
载地址:http://zookeeper.apache.org/releases.html 下载xxx.tar.gz解压即可，里面有sh脚本，也有cmd脚本。
(2)解压下载文件
(3)在conf目录下面创建zoo.cfg (在conf目录下面提供了一分样本文件zoo_sample.cfg),或者复制一分样本文件改名为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=E:\北大青鸟\Y2\Zookeeper\zookeeper-3.4.6\data # 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
解释:
tickTime：这个时间是作为 Zookeeper 服务器之间或客户端与服务器之间维持心跳的时间间隔，也就是每个 tickTime 时间就会发送一个心跳。
dataDir：顾名思义就是 Zookeeper 保存数据的目录，默认情况下，Zookeeper 将写数据的日志文件也保存在这个目录里。
dataLogDir：log目录, 同样可以是任意目录. 如果没有设置该参数, 将使用和dataDir相同的设置.
clientPort：这个端口就是客户端连接 Zookeeper 服务器的端口，Zookeeper 会监听这个端口，接受客户端的访问请求。
(4)在对应目录建立上面的data目录即可
(5)启动zookeeper
E:\zookeeper\zookeeper-3.4.13\bin> .\zkServer.cmd E:\zookeeper\zookeeper-3.4.13\bin>call "C:\Program Files\Java\jdk1.8.0_121"\bin\java "-Dzookeeper.log.dir=E:\zookeeper\zookeeper-3.4.13\bin\.." "-Dzookeeper.root.logger=INFO,CONSOLE" -cp "E:\zookeeper\zookeeper-3.4.13\bin\..\build\classes;E:\zookeeper\zookeeper-3.4.13\bin\..\build\lib\*;E:\zookeeper\zookeeper-3.4.13\bin\..\*;E:\zookeeper\zookeeper-3.4.13\bin\..\lib\*;E:\zookeeper\zookeeper-3.4.13\bin\..\conf" org.apache.zookeeper.server.quorum.QuorumPeerMain "E:\zookeeper\zookeeper-3.4.13\bin\..\conf\zoo.cfg" 2019-03-07 18:14:37,163 [myid:] - INFO [main:QuorumPeerConfig@136] - Reading configuration from: E:\zookeeper\zookeeper-3.4.13\bin\..\conf\zoo.cfg 2019-03-07 18:14:37,170 [myid:] - INFO [main:DatadirCleanupManager@78] - autopurge.snapRetainCount set to 3 2019-03-07 18:14:37,171 [myid:] - INFO [main:DatadirCleanupManager@79] - autopurge.purgeInterval set to 0 2019-03-07 18:14:37,171 [myid:] - INFO [main:DatadirCleanupManager@101] - Purge task is not scheduled. 2019-03-07 18:14:37,173 [myid:] - WARN [main:QuorumPeerMain@116] - Either no config or no quorum defined in config, running in standalone mode 2019-03-07 18:14:37,229 [myid:] - INFO [main:QuorumPeerConfig@136] - Reading configuration from: E:\zookeeper\zookeeper-3.4.13\bin\..\conf\zoo.cfg 2019-03-07 18:14:37,230 [myid:] - INFO [main:ZooKeeperServerMain@98] - Starting server 2019-03-07 18:14:37,271 [myid:] - INFO [main:Environment@100] - Server environment:zookeeper.version=3.4.13-2d71af4dbe22557fda74f9a9b4309b15a7487f03, built on 06/29/2018 04:05 GMT 2019-03-07 18:14:37,271 [myid:] - INFO [main:Environment@100] - Server environment:host.name=MicroWin10-1535 2019-03-07 18:14:37,272 [myid:] - INFO [main:Environment@100] - Server environment:java.version=1.8.0_121 2019-03-07 18:14:37,272 [myid:] - INFO [main:Environment@100] - Server environment:java.vendor=Oracle Corporation 2019-03-07 18:14:37,272 [myid:] - INFO [main:Environment@100] - Server environment:java.home=C:\Program Files\Java\jdk1.8.0_121\jre 2019-03-07 18:14:37,273 [myid:] - INFO [main:Environment@100] - Server environment:java.class.path=E:\zookeeper\zookeeper-3.4.13\bin\..\build\classes;E:\zookeeper\zookeeper-3.4.13\bin\..\build\lib\*;E:\zookeeper\zookeeper-3.4.13\bin\..\zookeeper-3.4.13.jar;E:\zookeeper\zookeeper-3.4.13\bin\..\lib\audience-annotations-0.5.0.jar;E:\zookeeper\zookeeper-3.4.13\bin\..\lib\jline-0.9.94.jar;E:\zookeeper\zookeeper-3.4.13\bin\..\lib\log4j-1.2.17.jar;E:\zookeeper\zookeeper-3.4.13\bin\..\lib\netty-3.10.6.Final.jar;E:\zookeeper\zookeeper-3.4.13\bin\..\lib\slf4j-api-1.7.25.jar;E:\zookeeper\zookeeper-3.4.13\bin\..\lib\slf4j-log4j12-1.7.25.jar;E:\zookeeper\zookeeper-3.4.13\bin\..\conf 2019-03-07 18:14:37,274 [myid:] - INFO [main:Environment@100] - Server environment:java.library.path=C:\Program Files\Java\jdk1.8.0_121\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;E:\Anaconda3\exe;E:\Anaconda3\exe\Library\mingw-w64\bin;E:\Anaconda3\exe\Library\usr\bin;E:\Anaconda3\exe\Library\bin;E:\Anaconda3\exe\Scripts;E:\ImageMagick-7.0.8-Q16;C:\oraclexe\app\oracle\product\11.2.0\server\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;E:\soft\apache-maven-3.5.3\bin;C:\WINDOWS\System32\OpenSSH\;E:\git\Git\cmd;E:\SVN\bin;C:\Program Files (x86)\Microsoft SQL Server\110\Tools\Binn\;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;C:\Program Files\Microsoft SQL Server\110\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL Server\110\Tools\Binn\ManagementStudio\;C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\PrivateAssemblies\;C:\Program Files (x86)\Microsoft SQL Server\110\DTS\Binn\;C:\Users\Administrator\AppData\Local\Microsoft\WindowsApps;E:\soft\maven\apache-maven-3.3.9\bin;C:\Program Files\MySQL\MySQL Server 5.7\bin;C:\Program Files\Java\jdk1.8.0_121\bin;E:\git\Git\bin;E:\git\Git\usr\bin;E:\git\Git;C:\Program Files\Java\jdk1.8.0_121\jre\bin;D:\zdcontomcat\zdc8\lo\program;E:\tesseract4\Tesseract-OCR;E:\redis\redis-win;;. 2019-03-07 18:14:37,276 [myid:] - INFO [main:Environment@100] - Server environment:java.io.tmpdir=C:\Users\ADMINI~1\AppData\Local\Temp\ 2019-03-07 18:14:37,276 [myid:] - INFO [main:Environment@100] - Server environment:java.compiler=<NA> 2019-03-07 18:14:37,277 [myid:] - INFO [main:Environment@100] - Server environment:os.name=Windows 10 2019-03-07 18:14:37,278 [myid:] - INFO [main:Environment@100] - Server environment:os.arch=amd64 2019-03-07 18:14:37,279 [myid:] - INFO [main:Environment@100] - Server environment:os.version=10.0 2019-03-07 18:14:37,285 [myid:] - INFO [main:Environment@100] - Server environment:user.name=Administrator 2019-03-07 18:14:37,287 [myid:] - INFO [main:Environment@100] - Server environment:user.home=C:\Users\Administrator 2019-03-07 18:14:37,289 [myid:] - INFO [main:Environment@100] - Server environment:user.dir=E:\zookeeper\zookeeper-3.4.13\bin 2019-03-07 18:14:37,296 [myid:] - INFO [main:ZooKeeperServer@836] - tickTime set to 2000 2019-03-07 18:14:37,297 [myid:] - INFO [main:ZooKeeperServer@845] - minSessionTimeout set to -1 2019-03-07 18:14:37,302 [myid:] - INFO [main:ZooKeeperServer@854] - maxSessionTimeout set to -1 2019-03-07 18:14:37,585 [myid:] - INFO [main:ServerCnxnFactory@117] - Using org.apache.zookeeper.server.NIOServerCnxnFactory as server connection factory 2019-03-07 18:14:37,588 [myid:] - INFO [main:NIOServerCnxnFactory@89] - binding to port 0.0.0.0/0.0.0.0:2181
3.测试
(1)用netstat或者jps查看都可以
C:\Users\Administrator>netstat -ano|findstr 2181 TCP 0.0.0.0:2181 0.0.0.0:0 LISTENING 15532 TCP [::]:2181 [::]:0 LISTENING 15532 C:\Users\Administrator>jps -l 19320 sun.tools.jps.Jps 15532 org.apache.zookeeper.server.quorum.QuorumPeerMain 4780
(2)zkCli.cmd连接进行测试:
PS E:\zookeeper\zookeeper-3.4.13\bin> .\zkCli.cmd Connecting to localhost:2181 ......... [zk: localhost:2181(CONNECTING) 0] 2019-03-07 18:23:07,894 [myid:] - INFO [main-SendThread(localhost:2181):ClientCnxn$SendThread@1303] - Session establishment complete on server localhost/0:0:0:0:0:0:0:1:2181, sessionid = 0x10035685eb40002, negotiated timeout = 30000 WATCHER:: WatchedEvent state:SyncConnected type:None path:null [zk: localhost:2181(CONNECTED) 0]
[zk: localhost:2181(CONNECTED) 0] help ZooKeeper -server host:port cmd args stat path [watch] set path data [version] ls path [watch] delquota [-n|-b] path ls2 path [watch] setAcl path acl setquota -n|-b val path history redo cmdno printwatches on|off delete path [version] sync path listquota path rmr path get path [watch] create [-s] [-e] path data acl addauth scheme auth quit getAcl path close connect host:port [zk: localhost:2181(CONNECTED) 1] quit Quitting... 2019-03-07 18:24:38,781 [myid:] - INFO [main:ZooKeeper@693] - Session: 0x10035685eb40002 closed 2019-03-07 18:24:38,783 [myid:] - INFO [main-EventThread:ClientCnxn$EventThread@522] - EventThread shut down for session: 0x10035685eb40002 PS E:\zookeeper\zookeeper-3.4.13\bin>
集群
1.准备三台centos操作系统，ip分别为:
192.168.1.130 我们称为A机器
192.168.1.131 我们称为B机器
192.168.1.133 我们称为C机器
2.建立相同的目录并上传zookeeperxxx.tar.gz
3.解压上面的目录 (三个做相同操作)
4.复制conf\zoo_sample.cfg到con\zoo.cfg目录下:
[root@localhost conf]# cp ./zoo_sample.cfg ./zoo.cfg
[root@localhost conf]# ls
configuration.xsl log4j.properties zoo.cfg zoo_sample.cfg
5.修改 zoo.cfg
tickTime = 2000 dataDir = /opt/zookeeper/zookeeper-3.4.13/data clientPort = 2181 initLimit = 5 syncLimit = 2 server.1=192.168.1.130:2888:3888 server.2=192.168.1.131:2888:3888 server.3=192.168.1.133:2888:3888
6.同时创建三个服务器对应的数据目录
mkdir /opt/zookeeper/zookeeper-3.4.13/data
7.在三个机器的对应的data目录下面分别创建对应的id文件(非常重要)
A机器:
[root@localhost data]# echo "1">myid [root@localhost data]# cat myid 1
B机器：
[root@localhost data]# echo "2">myid [root@localhost data]# cat myid 2
C机器
[root@localhost data]# echo "3">myid [root@localhost data]# cat myid 3
8.接下来启动三个服务器即可(同时发送命令)
/opt/zookeeper/zookeeper-3.4.13/bin/zkServer.sh start
9.JPS查看JVM
三个服务器都有主类为QuorumPeerMain的PID即启动成功。
10.查看集群状态
/opt/zookeeper/zookeeper-3.4.13/bin/zkServer.sh status
A机器:
B机器:
C机器:
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