2018-07-12期 Zookeeper操作命令

obeckham

　　1、连接zk
　　[root@hadoop-server01 bin]# ./zkCli.sh -server hadoop-server01
　　[zk: hadoop-server01(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
　　2、ls命令
　　[zk: hadoop-server01(CONNECTED) 2] ls /
　　3、创建节点
　　[zk: hadoop-server01(CONNECTED) 4] create /itcast 500000
　　[zk: hadoop-server01(CONNECTED) 5] ls /
　　[itcast, zookeeper]
　　[zk: hadoop-server01(CONNECTED) 7] get /itcast
　　500000
　　cZxid = 0x100000004
　　ctime = Sun Jul 01 20:37:56 PDT 2018
　　mZxid = 0x100000004
　　mtime = Sun Jul 01 20:37:56 PDT 2018
　　pZxid = 0x100000004
　　cversion = 0
　　dataVersion = 0
　　aclVersion = 0
　　ephemeralOwner = 0x0
　　dataLength = 6
　　numChildren = 0
　　4、修改数据
　　[zk: hadoop-server01(CONNECTED) 8] set /itcast 100000
　　cZxid = 0x100000004
　　ctime = Sun Jul 01 20:37:56 PDT 2018
　　mZxid = 0x100000005
　　mtime = Sun Jul 01 20:40:17 PDT 2018
　　pZxid = 0x100000004
　　cversion = 0
　　dataVersion = 1
　　aclVersion = 0
　　ephemeralOwner = 0x0
　　dataLength = 6
　　numChildren = 0
　　[zk: hadoop-server01(CONNECTED) 9] get /itcast
　　100000
　　cZxid = 0x100000004
　　ctime = Sun Jul 01 20:37:56 PDT 2018
　　mZxid = 0x100000005
　　mtime = Sun Jul 01 20:40:17 PDT 2018
　　pZxid = 0x100000004
　　cversion = 0
　　dataVersion = 1
　　aclVersion = 0
　　ephemeralOwner = 0x0
　　5、注册监听器
　　比如：
　　[zk: hadoop-server01(CONNECTED) 0] get /itcast watch --该注册只能收到一次通知，收到后失效
　　100000
　　cZxid = 0x100000004
　　ctime = Sun Jul 01 20:37:56 PDT 2018
　　mZxid = 0x100000005
　　mtime = Sun Jul 01 20:40:17 PDT 2018
　　pZxid = 0x100000004
　　cversion = 0
　　dataVersion = 1
　　aclVersion = 0
　　ephemeralOwner = 0x0
　　dataLength = 6
　　numChildren = 0
　　在其它节点就该数据
　　[zk: hadoop-server02(CONNECTED) 0] set /itcast 4000000
　　cZxid = 0x100000004
　　ctime = Sun Jul 01 20:37:56 PDT 2018
　　mZxid = 0x10000000b
　　mtime = Sun Jul 01 22:13:14 PDT 2018
　　pZxid = 0x100000004
　　cversion = 0
　　dataVersion = 2
　　aclVersion = 0
　　ephemeralOwner = 0x0
　　dataLength = 7
　　numChildren = 0
　　观察注册监听器节点变化
　　WatchedEvent state:SyncConnected type:NodeDataChanged path:/itcast