进入命令行

运行 zkCli.sh –server <ip>进入命令行工具。

[root@zk1 bin]# zkCli.sh -server   <不加ip地址，连接本地zookeeper>
Error: no argument found for option -server
Connecting to localhost:2181

[zk: localhost:2181(CONNECTED) 0] 

[root@zk1 bin]# zkCli.sh -server zk2  < 加ip地址，连接相应的zookeeper>
Connecting to zk2
[zk: zk2(CONNECTED) 0] 

HELP

输入help查看帮助

[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]  ---详情版ls
        setAcl path acl
        setquota -n|-b val path
        history 
        redo cmdno
        printwatches on|off
        delete path [version]
        sync path
        listquota path
        get path [watch]
        create [-s] [-e] path data acl
        addauth scheme auth
        quit 
        getAcl path
        close 
        connect host:port

操作

zookeeper的节点符合常规的文件系统规范。

ls 

[zk: localhost:2181(CONNECTED) 3] ls /
[zookeeper]

create 

[zk: localhost:2181(CONNECTED) 6] create /testapp1 1111
Created /testapp1

默认节点类型是：PERSISTENT

[zk: localhost:2181(CONNECTED) 7] ls /
[testapp1, zookeeper]

[zk: localhost:2181(CONNECTED) 8] create -s /testapp1 1111
Created /testapp10000000009
[zk: localhost:2181(CONNECTED) 9] ls /
[testapp1, zookeeper, testapp10000000009]
[zk: localhost:2181(CONNECTED) 10] 

进入zk2，zk3 使用ls 命令可以看到zk1的内容已经同步了。

create EPHEMERAL类型

[zk: localhost:2181(CONNECTED) 4] create -e /app1eeee eeee
Created /app1eeee
[zk: localhost:2181(CONNECTED) 5] ls /
[testapp1, zookeeper, app1eeee, testapp10000000009]

quit退出

在其他节点 ls / 发现app1eeee没了，退出后就删了

[zk: localhost:2181(CONNECTED) 2] create -e /app1eeeee/app2eee eeee
Ephemerals cannot have children: /app1eeeee/app2eee

get

[zk: localhost:2181(CONNECTED) 1] get /testapp1
1111  <存进去的内容>
cZxid = 0x300000007
ctime = Sun Nov 13 20:57:06 CST 2016
mZxid = 0x300000007
mtime = Sun Nov 13 20:57:06 CST 2016
pZxid = 0x300000007
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 4
numChildren = 0

set

[zk: localhost:2181(CONNECTED) 2] set /testapp1 2222
cZxid = 0x300000007
ctime = Sun Nov 13 20:57:06 CST 2016
mZxid = 0x30000000a
mtime = Sun Nov 13 21:05:26 CST 2016
pZxid = 0x300000007
cversion = 0
dataVersion = 1
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 4
numChildren = 0

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