140.2. 管理 ZooKeeper-优快云博客

本文通过一系列示例展示了如何使用 ZooKeeper 的命令行客户端进行基本操作，包括连接服务器、创建节点、读取数据、修改数据以及删除节点等。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

链接 ZooKeeper

bin/zkCli.sh -server 127.0.0.1:2181

		
[root@localhost zookeeper-3.4.8]# bin/zkCli.sh -server 127.0.0.1:2181
Connecting to 127.0.0.1:2181
2016-05-27 22:19:10,785 [myid:] - INFO  [main:Environment@100] - Client environment:zookeeper.version=3.4.8--1, built on 02/06/2016 03:18 GMT
2016-05-27 22:19:10,788 [myid:] - INFO  [main:Environment@100] - Client environment:host.name=localhost
2016-05-27 22:19:10,788 [myid:] - INFO  [main:Environment@100] - Client environment:java.version=1.6.0_45
2016-05-27 22:19:10,789 [myid:] - INFO  [main:Environment@100] - Client environment:java.vendor=Sun Microsystems Inc.
2016-05-27 22:19:10,789 [myid:] - INFO  [main:Environment@100] - Client environment:java.home=/srv/jdk1.6.0_45/jre
2016-05-27 22:19:10,789 [myid:] - INFO  [main:Environment@100] - Client environment:java.class.path=/srv/zookeeper-3.4.8/bin/../build/classes:/srv/zookeeper-3.4.8/bin/../build/lib/*.jar:/srv/zookeeper-3.4.8/bin/../lib/slf4j-log4j12-1.6.1.jar:/srv/zookeeper-3.4.8/bin/../lib/slf4j-api-1.6.1.jar:/srv/zookeeper-3.4.8/bin/../lib/netty-3.7.0.Final.jar:/srv/zookeeper-3.4.8/bin/../lib/log4j-1.2.16.jar:/srv/zookeeper-3.4.8/bin/../lib/jline-0.9.94.jar:/srv/zookeeper-3.4.8/bin/../zookeeper-3.4.8.jar:/srv/zookeeper-3.4.8/bin/../src/java/lib/*.jar:/srv/zookeeper-3.4.8/bin/../conf:/srv/java/lib:/srv/java/jre/lib:/lib:
2016-05-27 22:19:10,789 [myid:] - INFO  [main:Environment@100] - Client environment:java.library.path=/srv/jdk1.6.0_45/jre/lib/amd64/server:/srv/jdk1.6.0_45/jre/lib/amd64:/srv/jdk1.6.0_45/jre/../lib/amd64:/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
2016-05-27 22:19:10,790 [myid:] - INFO  [main:Environment@100] - Client environment:java.io.tmpdir=/tmp
2016-05-27 22:19:10,790 [myid:] - INFO  [main:Environment@100] - Client environment:java.compiler=<NA>
2016-05-27 22:19:10,790 [myid:] - INFO  [main:Environment@100] - Client environment:os.name=Linux
2016-05-27 22:19:10,790 [myid:] - INFO  [main:Environment@100] - Client environment:os.arch=amd64
2016-05-27 22:19:10,790 [myid:] - INFO  [main:Environment@100] - Client environment:os.version=3.10.0-327.10.1.el7.x86_64
2016-05-27 22:19:10,790 [myid:] - INFO  [main:Environment@100] - Client environment:user.name=root
2016-05-27 22:19:10,790 [myid:] - INFO  [main:Environment@100] - Client environment:user.home=/root
2016-05-27 22:19:10,790 [myid:] - INFO  [main:Environment@100] - Client environment:user.dir=/srv/zookeeper-3.4.8
2016-05-27 22:19:10,791 [myid:] - INFO  [main:ZooKeeper@438] - Initiating client connection, connectString=127.0.0.1:2181 sessionTimeout=30000 watcher=org.apache.zookeeper.ZooKeeperMain$MyWatcher@6d8dfef8
Welcome to ZooKeeper!
2016-05-27 22:19:10,844 [myid:] - INFO  [main-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@1032] - Opening socket connection to server 127.0.0.1/127.0.0.1:2181. Will not attempt to authenticate using SASL (java.lang.SecurityException: Unable to locate a login configuration)
JLine support is enabled
2016-05-27 22:19:10,848 [myid:] - INFO  [main-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@876] - Socket connection established to 127.0.0.1/127.0.0.1:2181, initiating session
[zk: 127.0.0.1:2181(CONNECTING) 0] 2016-05-27 22:19:10,894 [myid:] - INFO  [main-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@1299] - Session establishment complete on server 127.0.0.1/127.0.0.1:2181, sessionid = 0x154f526d8300000, negotiated timeout = 30000

WATCHER::

WatchedEvent state:SyncConnected type:None path:null

140.2.1. help

			
[zk: 127.0.0.1:2181(CONNECTED) 0] help
ZooKeeper -server host:port cmd args
	connect host:port
	get path [watch]
	ls path [watch]
	set path data [version]
	rmr path
	delquota [-n|-b] path
	quit 
	printwatches on|off
	create [-s] [-e] path data acl
	stat path [watch]
	close 
	ls2 path [watch]
	history 
	listquota path
	setAcl path acl
	getAcl path
	sync path
	redo cmdno
	addauth scheme auth
	delete path [version]
	setquota -n|-b val path

140.2.2. ls

			
[zk: 127.0.0.1:2181(CONNECTED) 1] ls /
[zookeeper]

140.2.3. create

			
[zk: 127.0.0.1:2181(CONNECTED) 4] create /product product       
Created /product

[zk: 127.0.0.1:2181(CONNECTED) 6] ls /       
[product, zookeeper]

140.2.4. get

			
[zk: 127.0.0.1:2181(CONNECTED) 7] get /

cZxid = 0x0
ctime = Wed Dec 31 19:00:00 EST 1969
mZxid = 0x0
mtime = Wed Dec 31 19:00:00 EST 1969
pZxid = 0x4
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 0
numChildren = 2

[zk: 127.0.0.1:2181(CONNECTED) 8] get /product
product
cZxid = 0x4
ctime = Fri May 27 22:27:55 EDT 2016
mZxid = 0x4
mtime = Fri May 27 22:27:55 EDT 2016
pZxid = 0x4
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 7
numChildren = 0

140.2.5. set

			
[zk: 127.0.0.1:2181(CONNECTED) 9] set /product nickname=netkiller
cZxid = 0x4
ctime = Fri May 27 22:27:55 EDT 2016
mZxid = 0x5
mtime = Fri May 27 22:37:28 EDT 2016
pZxid = 0x4
cversion = 0
dataVersion = 1
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 18
numChildren = 0

[zk: 127.0.0.1:2181(CONNECTED) 10] get /product                   
nickname=netkiller
cZxid = 0x4
ctime = Fri May 27 22:27:55 EDT 2016
mZxid = 0x5
mtime = Fri May 27 22:37:28 EDT 2016
pZxid = 0x4
cversion = 0
dataVersion = 1
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 18
numChildren = 0

140.2.6. delete

			
[zk: 127.0.0.1:2181(CONNECTED) 11] delete /product
[zk: 127.0.0.1:2181(CONNECTED) 12] ls /
[zookeeper]

原文出处：Netkiller 系列手札
本文作者：陈景峯
转载请与作者联系，同时请务必标明文章原始出处和作者信息及本声明。