我们执行
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| bin/zkCli.cmd -server 127.0.0.1:2181
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就连接上了刚才启动的服务器,进入shell
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| E:\zookeeper-3.4.6\bin>.\zkCli.cmd -server 127.0.0.1:2181
Connecting to 127.0.0.1:2181
2015-11-09 16:04:51,367 [myid:] - INFO [main:Environment@100] - Client environment:zookeeper.version=3.4.6-1569965, built on 02/20/2014 09:09 GMT
...
2015-11-09 16:04:51,374 [myid:] - INFO [main:Environment@100] - Client environment:user.home=C:\Users\Administrator
2015-11-09 16:04:51,374 [myid:] - INFO [main:Environment@100] - Client environment:user.dir=E:\zookeeper-3.4.6\bin
2015-11-09 16:04:51,375 [myid:] - INFO [main:ZooKeeper@438] - Initiating client connection, connectString=127.0.0.1:2181 sessionTimeout=30000 watcher=org.apache.zookeeper.ZooKeeperMain$MyWatcher@277050dc
Welcome to ZooKeeper!
2015-11-09 16:04:51,514 [myid:] - INFO [main-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@975] - Opening socket connection to server 127.0.0.1/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error)
2015-11-09 16:04:51,516 [myid:] - INFO [main-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@852] - Socket connection established to 127.0.0.1/127.0.0.1:2181, initiating session
2015-11-09 16:04:51,684 [myid:] - INFO [main-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@1235] - Session establishment complete on server 127.0.0.1/127.0.0.1:2181, sessionid = 0x150eb438ceb0000, negotiated timeout = 30000
WATCHER::
WatchedEvent state:SyncConnected type:None path:null
JLine support is enabled
[zk: 127.0.0.1:2181(CONNECTED) 0]
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进入到shell之后,我们可以敲人help命令，查看我们都能使用哪些命令：
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| [zk: 127.0.0.1:2181(CONNECTED) 1] 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: 127.0.0.1:2181(CONNECTED) 2]
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看到了,我们能使用这么多命令，下来我们简单的接受几个命令.
我们使用create命令创建一个znode(这个node里和字符串”my_data”关联起来了).
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| [zk: 127.0.0.1:2181(CONNECTED) 1] create /zk_test my_data
Created /zk_test
[zk: 127.0.0.1:2181(CONNECTED) 3] ls /
[zookeeper, zk_test]
[zk: 127.0.0.1:2181(CONNECTED) 4]
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但是实际上，这个node还没有被创建出来.
下来我们使用get命令验证一下zk_test是不是真的和”my_data”关联起来了
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| [zk: 127.0.0.1:2181(CONNECTED) 4] get /zk_test
my_data
cZxid = 0x3
ctime = Mon Nov 09 16:29:12 CST 2015
mZxid = 0x3
mtime = Mon Nov 09 16:29:12 CST 2015
pZxid = 0x3
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 7
numChildren = 0
[zk: 127.0.0.1:2181(CONNECTED) 5]
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我们还可以使用set命令将刚才那个node重新关联
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| [zk: 127.0.0.1:2181(CONNECTED) 5] set /zk_test new_data
cZxid = 0x3
ctime = Mon Nov 09 16:29:12 CST 2015
mZxid = 0x4
mtime = Mon Nov 09 16:35:11 CST 2015
pZxid = 0x3
cversion = 0
dataVersion = 1
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 8
numChildren = 0
[zk: 127.0.0.1:2181(CONNECTED) 7] get /zk_test
new_data
cZxid = 0x3
ctime = Mon Nov 09 16:29:12 CST 2015
mZxid = 0x4
mtime = Mon Nov 09 16:35:11 CST 2015
pZxid = 0x3
cversion = 0
dataVersion = 1
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 8
numChildren = 0
[zk: 127.0.0.1:2181(CONNECTED) 8]
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最后，我们将这个node删掉
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| [zk: 127.0.0.1:2181(CONNECTED) 9] delete /zk_test
[zk: 127.0.0.1:2181(CONNECTED) 10] ls /
[zookeeper]
[zk: 127.0.0.1:2181(CONNECTED) 11]
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