~ vi /home/conan/toolkit/zookeeper345/conf/zk2.cfg
tickTime=2000
initLimit=10
syncLimit=5
dataDir=/home/conan/zoo/zk2
clientPort=2182
server.1=192.168.1.201:2888:3888
server.2=192.168.1.201:2889:3889
server.3=192.168.1.201:2890:3890
~ vi /home/conan/toolkit/zookeeper345/conf/zk3.cfg
tickTime=2000
initLimit=10
syncLimit=5
dataDir=/home/conan/zoo/zk3
clientPort=2183
server.1=192.168.1.201:2888:3888
server.2=192.168.1.201:2889:3889
server.3=192.168.1.201:2890:3890
3个节点的ZooKeeper集群配置完成，接下来我们的启动服务。
启动集群
~ /home/conan/toolkit/zookeeper345/bin/zkServer.sh start zk1.cfg
~ /home/conan/toolkit/zookeeper345/bin/zkServer.sh start zk2.cfg
~ /home/conan/toolkit/zookeeper345/bin/zkServer.sh start zk3.cfg
~ jps
5422 QuorumPeerMain
5395 QuorumPeerMain
5463 QuorumPeerMain
5494 Jps
#查看节点状态
~ /home/conan/toolkit/zookeeper345/bin/zkServer.sh status zk1.cfg
JMX enabled by default
Using config: /home/conan/toolkit/zookeeper345/bin/../conf/zk1.cfg
Mode: follower
~ /home/conan/toolkit/zookeeper345/bin/zkServer.sh status zk2.cfg
JMX enabled by default
Using config: /home/conan/toolkit/zookeeper345/bin/../conf/zk2.cfg
Mode: leader
~ /home/conan/toolkit/zookeeper345/bin/zkServer.sh status zk3.cfg
JMX enabled by default
Using config: /home/conan/toolkit/zookeeper345/bin/../conf/zk3.cfg
Mode: follower
我们可以看到zk2是leader，zk1和zk3是follower
查看ZooKeeper物理文件目录结构
~ tree -L 3 /home/conan/zoo
/home/conan/zoo
├── zk0
├── zk1
│ ├── myid
│ ├── version-2
│ │ ├── acceptedEpoch
│ │ ├── currentEpoch
│ │ ├── log.100000001
│ │ └── snapshot.0
│ └── zookeeper_server.pid
├── zk2
│ ├── myid
│ ├── version-2
│ │ ├── acceptedEpoch
│ │ ├── currentEpoch
│ │ ├── log.100000001
│ │ └── snapshot.0
│ └── zookeeper_server.pid
└── zk3
├── myid
├── version-2
│ ├── acceptedEpoch
│ ├── currentEpoch
│ ├── log.100000001
│ └── snapshot.100000000
└── zookeeper_server.pid
7 directories, 18 files
4. zookeeper命令行操作
我们通过客户端连接ZooKeeper的集群，我们可以任意的zookeeper是进行连接。
~ /home/conan/toolkit/zookeeper345/bin/zkCli.sh -server 192.168.1.201:2181
Connecting to 192.168.1.201
2013-08-12 05:25:39,260 [myid:] - INFO [main:Environment@100] - Client environment:zookeeper.version=3.4.5-1392090, built on 09/30/2012 17:52 GMT
2013-08-12 05:25:39,267 [myid:] - INFO [main:Environment@100] - Client environment:host.name=conan
2013-08-12 05:25:39,269 [myid:] - INFO [main:Environment@100] - Client environment:java.version=1.6.0_29
2013-08-12 05:25:39,269 [myid:] - INFO [main:Environment@100] - Client environment:java.vendor=Sun Microsystems Inc.
2013-08-12 05:25:39,270 [myid:] - INFO [main:Environment@100] - Client environment:java.home=/home/conan/toolkit/jdk16/jre
2013-08-12 05:25:39,270 [myid:] - INFO [main:Environment@100] - Client environment:java.class.path=/home/conan/toolkit/zookeeper345/bin/../build/classes:/home/conan/toolkit/zookeeper345/bin/../build/lib/*.jar:/home/conan/toolkit/zookeeper345/bin/../lib/slf4j-log4j12-1.6.1.jar:/home/conan/toolkit/zookeeper345/bin/../lib/slf4j-api-1.6.1.jar:/home/conan/toolkit/zookeeper345/bin/../lib/netty-3.2.2.Final.jar:/home/conan/toolkit/zookeeper345/bin/../lib/log4j-1.2.15.jar:/home/conan/toolkit/zookeeper345/bin/../lib/jline-0.9.94.jar:/home/conan/toolkit/zookeeper345/bin/../zookeeper-3.4.5.jar:/home/conan/toolkit/zookeeper345/bin/../src/java/lib/*.jar:/home/conan/toolkit/zookeeper345/bin/../conf:
2013-08-12 05:25:39,271 [myid:] - INFO [main:Environment@100] - Client environment:java.library.path=/home/conan/toolkit/jdk16/jre/lib/amd64/server:/home/conan/toolkit/jdk16/jre/lib/amd64:/home/conan/toolkit/jdk16/jre/../lib/amd64:/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
2013-08-12 05:25:39,275 [myid:] - INFO [main:Environment@100] - Client environment:java.io.tmpdir=/tmp
2013-08-12 05:25:39,276 [myid:] - INFO [main:Environment@100] - Client environment:java.compiler=
2013-08-12 05:25:39,276 [myid:] - INFO [main:Environment@100] - Client environment:os.name=Linux
2013-08-12 05:25:39,277 [myid:] - INFO [main:Environment@100] - Client environment:os.arch=amd64
2013-08-12 05:25:39,281 [myid:] - INFO [main:Environment@100] - Client environment:os.version=3.5.0-23-generic
2013-08-12 05:25:39,282 [myid:] - INFO [main:Environment@100] - Client environment:user.name=conan
2013-08-12 05:25:39,282 [myid:] - INFO [main:Environment@100] - Client environment:user.home=/home/conan
2013-08-12 05:25:39,283 [myid:] - INFO [main:Environment@100] - Client environment:user.dir=/home/conan/zoo
2013-08-12 05:25:39,284 [myid:] - INFO [main:ZooKeeper@438] - Initiating client connection, connectString=192.168.1.201 sessionTimeout=30000 watcher=org.apache.zookeeper.ZooKeeperMain$MyWatcher@22ba6c83
Welcome to ZooKeeper!
JLine support is enabled
[zk: 192.168.1.201(CONNECTING) 0] 2013-08-12 05:25:39,336 [myid:] - INFO [main-SendThread(192.168.1.201:2181):ClientCnxn$SendThread@966] - Opening socket connection to server 192.168.1.201/192.168.1.201:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
2013-08-12 05:25:39,345 [myid:] - INFO [main-SendThread(192.168.1.201:2181):ClientCnxn$SendThread@849] - Socket connection established to 192.168.1.201/192.168.1.201:2181, initiating session
2013-08-12 05:25:39,384 [myid:] - INFO [main-SendThread(192.168.1.201:2181):ClientCnxn$SendThread@1207] - Session establishment complete on server 192.168.1.201/192.168.1.201:2181, sessionid = 0x1406f3c1ef90001, negotiated timeout = 30000
WATCHER::
WatchedEvent state:SyncConnected type:None path:null
[zk: 192.168.1.201(CONNECTED) 0]
集群已连接，下面我们要使用一下，ZooKeeper的命令行操作。
命令行操作
通过help打印命令行帮助