zookeeper基础命令详解

zookeeper基础命令详解目录

一、列出所有基础命令

先启动一个zookeeper客户端连接zookeeper，如果还没有启动zookeeper集群的参考本文启动之后再做后续操作。

https://blog.csdn.net/weixin_42924400/article/details/144468932

进入命令行界面，输入Help查看有哪些指令

ZooKeeper -server host:port -client-configuration properties-file cmd args
        addWatch [-m mode] path # optional mode is one of [PERSISTENT, PERSISTENT_RECURSIVE] - default is PERSISTENT_RECURSIVE
        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 [-b batch size]
        delquota [-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 val path
        stat [-w] path
        sync path
        version
Command not found: Command not found help

主要学习几个指令：
create [-s] [-e] [-c] [-t ttl] path [data] [acl]
delete [-v version] path
deleteall path [-b batch size]
get [-s] [-w] path
quit
set [-s] [-v version] path data
stat [-w] path
ls [-s] [-w] [-R] path
1.create [-s] [-e] [-c] [-t ttl] path [data] [acl]
创建节点(-e 临时节点(重启或者超时就消失 -s 有序序列))

[zk: localhost:2181(CONNECTED) 0] create -s /testseq  111
Created /testseq0000000002
[zk: localhost:2181(CONNECTED) 1] create -s /testseq  111
Created /testseq0000000003
[zk: localhost:2181(CONNECTED) 2] create -s /testseq  111
Created /testseq0000000004
[zk: localhost:2181(CONNECTED) 3] create -s /testseq  111
Created /testseq0000000005
[zk: localhost:2181(CONNECTED) 4] create -s /testseq  111
Created /testseq0000000006
[zk: localhost:2181(CONNECTED) 5] create -s /testseq  111
Created /testseq0000000007
[zk: localhost:2181(CONNECTED) 6] create -s /testseq  111
Created /testseq0000000008
[zk: localhost:2181(CONNECTED) 7] create -s /testseq  111
Created /testseq0000000009
[zk: localhost:2181(CONNECTED) 8]

此时可以发现节点名称是有序递增，且cZid也是有序递增，可以用于追溯分布式环境的事件顺序

[zk: localhost:2181(CONNECTED) 8] create -e /testtemp aaa
Created /testtemp
[zk: localhost:2181(CONNECTED) 9]

关闭zkCli之后，临时节点消失

2.delete [-v version] path

[zk: localhost:2181(CONNECTED) 0] delete /testseq0000000002
[zk: localhost:2181(CONNECTED) 1]

testseq0000000002被删除消失