1、help
[zkshell: 1] help
# a sample one
[zkshell: 2] h
ZooKeeper -server host:port cmd args
addauth scheme auth
close
config [-c] [-w] [-s]
connect host:port
create [-s] [-e] [-c] [-t ttl] path [data] [acl]
delete [-v version] path
deleteall path
delquota [-n|-b|-N|-B] path
get [-s] [-w] path
getAcl [-s] path
getAllChildrenNumber path
getEphemerals path
history
listquota path
ls [-s] [-w] [-R] path
printwatches on|off
quit
reconfig [-s] [-v version] [[-file path] | [-members serverID=host:port1:port2;port3[,...]*]] | [-add serverId=host:port1:port2;port3[,...]]* [-remove serverId[,...]*]
redo cmdno
removewatches path [-c|-d|-a] [-l]
set [-s] [-v version] path data
setAcl [-s] [-v version] [-R] path acl
setquota -n|-b|-N|-B val path
stat [-w] path
sync path
version
2、create [-s] [-e] [-c] [-t ttl] path [data] [acl]
[zk: localhost:2181(CONNECTED) 11] create /hello
WATCHER::
WatchedEvent state:SyncConnected type:NodeChildrenChanged path:/
Created /hello
[zk: localhost:2181(CONNECTED) 12] create /hello/world
Created /hello/world
[zk: localhost:2181(CONNECTED) 13]
3、ls [-s] [-w] [-R] path
（1）ls /znode/path 展示该node下有多少个直属字znode
[zk: localhost:2181(CONNECTED) 13] ls /hello
[world]
[zk: localhost:2181(CONNECTED) 14] ls /hello/world
[]
（2）ls –s 展示znode属性
[zk: localhost:2181(CONNECTED) 15] ls -s /hello
[world]
cZxid = 0x17e
ctime = Tue Mar 26 15:33:08 CST 2024
mZxid = 0x17e
mtime = Tue Mar 26 15:33:08 CST 2024
pZxid = 0x17f
cversion = 1
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 0
numChildren = 1
（3）ls -R 递归展示子节点
[zk: localhost:2181(CONNECTED) 21] ls -R /config
/config
/config/brokers
/config/changes
/config/clients
/config/ips
/config/topics
/config/users
/config/topics/__consumer_offsets
/config/topics/test
[zk: localhost:2181(CONNECTED) 22]
（4）ls -w /path/znode 对于子节点变化设置watch
当新增子节点或者删除子节点的时候会触发该watch并清除watch，即watch只有一次生效，只对直属子节点生效
[zk: localhost:2181(CONNECTED) 3] ls -w /helo
[world]
[zk: localhost:2181(CONNECTED) 4] create /helo/lichf
WATCHER::
Created /helo/lichf
WatchedEvent state:SyncConnected type:NodeChildrenChanged path:/helo
5、delete /path/znode
删除一个指定的znode，该znode必须是最终子znode，即该znode没有子znode
[zk: localhost:2181(CONNECTED) 22] delete /hello
Node not empty: /hello
[zk: localhost:2181(CONNECTED) 23]
- delete -v version /path/znode
删除指定dataVersion版本的znode,当传入的dataVersion与当前版本号不一致时，zookeeper会拒绝删除。
6、deleteall /path/znode 删除该节点的所有子节点包括自己
[zk: localhost:2181(CONNECTED) 26] deleteall /hello
[zk: localhost:2181(CONNECTED) 27] ls /
[admin, brokers, cluster, config, consumers, controller_epoch, feature, isr_change_notification, latest_producer_id_block, log_dir_event_notification, zookeeper]
[zk: localhost:2181(CONNECTED) 28] ls /hello
Node does not exist: /hello
[zk: localhost:2181(CONNECTED) 29]
7、getAllChildrenNumber 递归获取全部子节点包含子节点的子节点的所有数量
[zk: localhost:2181(CONNECTED) 1] getAllChildrenNumber /helo
8
[zk: localhost:2181(CONNECTED) 2] ls /helo
[baobao, lichf, liubb, queue0000000004, queue1, world]
[zk: localhost:2181(CONNECTED) 3] ls -R /helo
/helo
/helo/baobao
/helo/lichf
/helo/liubb
/helo/queue0000000004
/helo/queue1
/helo/world
/helo/lichf/baobao
/helo/queue1/haha
[zk: localhost:2181(CONNECTED) 4]
8、getEphemerals path 获取所有临时节点
[zk: localhost:2181(CONNECTED) 7] create -e /helo/test1
Created /helo/test1
[zk: localhost:2181(CONNECTED) 10] create -e /helo/test2
Created /helo/test2
[zk: localhost:2181(CONNECTED) 11] create -e /helo/hhhh
Created /helo/hhhh
- getEphemerals 获取所有临时节点
[zk: localhost:2181(CONNECTED) 12] getEphemerals
[/helo/hhhh, /helo/test2, /helo/test1]
- getEphemerals /path 获取所有匹配上的临时节点
[zk: localhost:2181(CONNECTED) 13] getEphemerals /helo/test
[/helo/test2, /helo/test1]
[zk: localhost:2181(CONNECTED) 14]
