zookeeper客户端命令

文章目录
  1. 1. zkCli.sh
  2. 2. 客户端命令
    1. 2.1. help
    2. 2.2. ls path [watch] 列出当前节点的子节点
    3. 2.3. stat path [watch] 获取节点状态信息
    4. 2.4. get path [watch] 获取节点存储的内容
    5. 2.5. ls2 path [watch] 列出当前节点的子节点并查看子节点的状态信息，相当于ls和stat
    6. 2.6. create [-s] [-e] path data acl 创建指令
    7. 2.7. set path data [version] 修改指令
    8. 2.8. delete path [version] 删除指定路径的节点
    9. 2.9. rmr path 循环删除路径下的节点
    10. 2.10. setquota -n|-b val path 限制节点的值的长度或其子节点的个数
    11. 2.11. listquota path 查看节点配额情况
    12. 2.12. delquota [-n|-b] path 删除配额信息
    13. 2.13. history 列出已操作的指令记录
    14. 2.14. redo cmdno 重新执行history中的命令
    15. 2.15. connect host:port 连接其他服务器
    16. 2.16. close 关闭connect连接的服务器
    17. 2.17. quit 退出zookeeper客户端连接

zkCli.sh

连接zookeeper：./zkCli.sh -server ip:port

bin目录下输入命令`./zkCli.sh -server 192.168.1.101:2181`

客户端命令

help

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

ls path [watch] 列出当前节点的子节点

[zk: 192.168.1.101:2181(CONNECTED) 5] ls /zookeeper
[quota]

stat path [watch] 获取节点状态信息

[zk: 192.168.1.101:2181(CONNECTED) 6] stat /zookeeper
cZxid = 0x0                             //该节点被创建时的事务ID
ctime = Thu Jan 01 08:00:00 CST 1970    //创建时间
mZxid = 0x0                             //最后一次更新的事务ID   
mtime = Thu Jan 01 08:00:00 CST 1970    //最后一次更新时间
pZxid = 0x0                             //该节点的子节点列表最后一次被更新（创建或删除节点）的事务ID
cversion = -1                           //子节点的版本号
dataVersion = 0                         //子节点的数据版本号
aclVersion = 0                          //权限版本号
ephemeralOwner = 0x0                    //创建该临时节点的事务Id
dataLength = 0                          //当前节点存放的数据长度
numChildren = 1                         //当前节点所拥有的子节点的个数

get path [watch] 获取节点存储的内容

[zk: 192.168.1.101:2181(CONNECTED) 14] get /node_test
larry                             //节点存储的内容
cZxid = 0x400000002
ctime = Tue Dec 15 22:04:44 CST 2015
mZxid = 0x400000002
mtime = Tue Dec 15 22:04:44 CST 2015
pZxid = 0x400000002
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 5
numChildren = 0

ls2 path [watch] 列出当前节点的子节点并查看子节点的状态信息，相当于ls和stat

[zk: 192.168.1.101:2181(CONNECTED) 9] ls /zookeeper
[quota]
[zk: 192.168.1.101:2181(CONNECTED) 10] ls2 /zookeeper
[quota]
cZxid = 0x0
ctime = Thu Jan 01 08:00:00 CST 1970
mZxid = 0x0
mtime = Thu Jan 01 08:00:00 CST 1970
pZxid = 0x0
cversion = -1
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 0
numChildren = 1

create [-s] [-e] path data acl 创建指令

- -s 表示创建的是顺序节点
- -e 表示创建的是临时节点
- path 创建节点的路径
- data 创建节点的内容
- acl 创建节点的acl权限

    //创建普通节点
    [zk: 192.168.1.101:2181(CONNECTED) 13] create /node_test larry 
    Created /node_test
    [zk: 192.168.1.101:2181(CONNECTED) 14] get /node_test
    larry
    cZxid = 0x400000002
    ctime = Tue Dec 15 22:04:44 CST 2015
    mZxid = 0x400000002
    mtime = Tue Dec 15 22:04:44 CST 2015
    pZxid = 0x400000002
    cversion = 0
    dataVersion = 0
    aclVersion = 0
    ephemeralOwner = 0x0
    dataLength = 5
    numChildren = 0

    //创建临时节点,退出重新登录
    [zk: 192.168.1.101:2181(CONNECTED) 1] ls /node_test
    []
    [zk: 192.168.1.101:2181(CONNECTED) 2] create -e /node_test/node_test_1 123456
    Created /node_test/node_test_1
    [zk: 192.168.1.101:2181(CONNECTED) 3] ls /node_test
    [node_test_1]
    [zk: 192.168.1.101:2181(CONNECTED) 4] quit
    Quitting...
    2015-12-15 22:13:13,291 [myid:] - INFO  [main:ZooKeeper@684] - Session: 0x151a5bedd2c0001 closed
    2015-12-15 22:13:13,293 [myid:] - INFO  [main-EventThread:ClientCnxn$EventThread@519] - EventThread shut down for session: 0x151a5bedd2c0001
    ➜  bin  sudo ./zkCli.sh -server 192.168.1.101:2181  //重新登录
    [zk: 192.168.1.101:2181(CONNECTED) 2] ls /node_test
    []

    //创建顺序节点
    [zk: 192.168.1.101:2181(CONNECTED) 3] create -s /node_test/note_test_1 123456 
    Created /node_test/note_test_10000000001
    [zk: 192.168.1.101:2181(CONNECTED) 4] create -s /node_test/note_test_1 123456 
    Created /node_test/note_test_10000000002

set path data [version] 修改指令

- path 修改节点路径为path
- data 修改节点的值为data
- [version] 为节点内容设置版本号

    [zk: 192.168.1.101:2181(CONNECTED) 4] get /node_test
    larry
    cZxid = 0x400000002
    ctime = Tue Dec 15 22:04:44 CST 2015
    mZxid = 0x400000002
    mtime = Tue Dec 15 22:04:44 CST 2015
    pZxid = 0x40000000d
    cversion = 6
    dataVersion = 0
    aclVersion = 0
    ephemeralOwner = 0x0
    dataLength = 5
    numChildren = 2
    [zk: 192.168.1.101:2181(CONNECTED) 5] set /node_test 999999
    cZxid = 0x400000002
    ctime = Tue Dec 15 22:04:44 CST 2015
    mZxid = 0x40000000f
    mtime = Tue Dec 15 22:24:57 CST 2015
    pZxid = 0x40000000d
    cversion = 6
    dataVersion = 1
    aclVersion = 0
    ephemeralOwner = 0x0
    dataLength = 6
    numChildren = 2
    [zk: 192.168.1.101:2181(CONNECTED) 6] get /node_test 
    999999
    cZxid = 0x400000002
    ctime = Tue Dec 15 22:04:44 CST 2015
    mZxid = 0x40000000f
    mtime = Tue Dec 15 22:24:57 CST 2015
    pZxid = 0x40000000d
    cversion = 6
    dataVersion = 1
    aclVersion = 0
    ephemeralOwner = 0x0
    dataLength = 6
    numChildren = 2
    [zk: 192.168.1.101:2181(CONNECTED) 7] set /node_test 999999
    cZxid = 0x400000002
    ctime = Tue Dec 15 22:04:44 CST 2015
    mZxid = 0x400000010
    mtime = Tue Dec 15 22:31:27 CST 2015
    pZxid = 0x40000000d
    cversion = 6
    dataVersion = 2  //此处增加
    aclVersion = 0
    ephemeralOwner = 0x0
    dataLength = 6
    numChildren = 2
    [zk: 192.168.1.101:2181(CONNECTED) 8] set /node_test 999999 2
    cZxid = 0x400000002
    ctime = Tue Dec 15 22:04:44 CST 2015
    mZxid = 0x400000011
    mtime = Tue Dec 15 22:31:31 CST 2015
    pZxid = 0x40000000d
    cversion = 6
    dataVersion = 3  //修改的值相同，此处扔增加
    aclVersion = 0
    ephemeralOwner = 0x0
    dataLength = 6
    numChildren = 2
    [zk: 192.168.1.101:2181(CONNECTED) 9] set /node_test 999999 4    //版本号必须同上一个的版本号相同才不会报错，即上面为3，填写版本号为3才行
    version No is not valid : /node_test
    [zk: 192.168.1.101:2181(CONNECTED) 10] set /node_test 999999 3
    cZxid = 0x400000002
    ctime = Tue Dec 15 22:04:44 CST 2015
    mZxid = 0x400000013
    mtime = Tue Dec 15 22:31:42 CST 2015
    pZxid = 0x40000000d
    cversion = 6
    dataVersion = 4 // 版本号增加
    aclVersion = 0
    ephemeralOwner = 0x0
    dataLength = 6
    numChildren = 2

delete path [version] 删除指定路径的节点

[zk: 192.168.1.101:2181(CONNECTED) 12] ls /node_test
[note_test_10000000002, note_test_10000000001]
[zk: 192.168.1.101:2181(CONNECTED) 13] delete /node_test
Node not empty: /node_test //只能删除没有子节点的节点
[zk: 192.168.1.101:2181(CONNECTED) 14] delete /node_test/note_test_10000000001
[zk: 192.168.1.101:2181(CONNECTED) 15]

rmr path 循环删除路径下的节点

[zk: 192.168.1.101:2181(CONNECTED) 16] rmr /node_test
[zk: 192.168.1.101:2181(CONNECTED) 17] ls /
[zookeeper]
[zk: 192.168.1.101:2181(CONNECTED) 18]

setquota -n|-b val path 限制节点的值的长度或其子节点的个数

- -n 限制节点(包含当前节点)的个数为val
- -b 限制节点值的长度为val
- path 要限制的节点路径

[zk: 192.168.1.101:2181(CONNECTED) 18] create node_test 123
Command failed: java.lang.IllegalArgumentException: Path must start with / character
[zk: 192.168.1.101:2181(CONNECTED) 19] create /node_test 123
Created /node_test
[zk: 192.168.1.101:2181(CONNECTED) 20] setquota -n 2 /node_test
Comment: the parts are option -n val 2 path /node_test
[zk: 192.168.1.101:2181(CONNECTED) 21] create /node_test/node_test_1 234
Created /node_test/node_test_1
[zk: 192.168.1.101:2181(CONNECTED) 22] create /node_test/node_test_2 345
Created /node_test/node_test_2
[zk: 192.168.1.101:2181(CONNECTED) 23] create /node_test/node_test_3 456
Created /node_test/node_test_3 //超额，不会抛出异常，只是在日志/opt/zookeeper/bin/zookeeper.out中记录信息
[zk: 192.168.1.101:2181(CONNECTED) 24] ls /node_test
[node_test_2, node_test_3, node_test_1]

zookeeper.out
2015-12-15 22:49:01,139 [myid:1] - WARN  [CommitProcessor:1:DataTree@389] - Quota exceeded: /node_test count=3 limit=2
2015-12-15 22:49:06,021 [myid:1] - WARN  [CommitProcessor:1:DataTree@389] - Quota exceeded: /node_test count=4 limit=2

listquota path 查看节点配额情况

[zk: 192.168.1.101:2181(CONNECTED) 27] listquota /node_test
absolute path is /zookeeper/quota/node_test/zookeeper_limits
Output quota for /node_test count=2,bytes=-1   //配额信息 -1没有限制
Output stat for /node_test count=4,bytes=12    //当前节点状态信息，当前节点4个，限额2个，字节总长度12
[zk: 192.168.1.101:2181(CONNECTED) 28]

delquota [-n|-b] path 删除配额信息

[zk: 192.168.1.101:2181(CONNECTED) 28] delquota -n /node_test
[zk: 192.168.1.101:2181(CONNECTED) 29] listquota /node_test
absolute path is /zookeeper/quota/node_test/zookeeper_limits
Output quota for /node_test count=-1,bytes=-1
Output stat for /node_test count=4,bytes=12
[zk: 192.168.1.101:2181(CONNECTED) 30]

history 列出已操作的指令记录

[zk: 192.168.1.101:2181(CONNECTED) 30] history
20 - setquota -n 2 /node_test
21 - create /node_test/node_test_1 234
22 - create /node_test/node_test_2 345
23 - create /node_test/node_test_3 456
24 - ls /node_test
25 - ls
26 - h
27 - listquota /node_test
28 - delquota -n /node_test
29 - listquota /node_test
30 - history
[zk: 192.168.1.101:2181(CONNECTED) 31]

redo cmdno 重新执行history中的命令

[zk: 192.168.1.101:2181(CONNECTED) 31] redo 24
[node_test_2, node_test_3, node_test_1]
[zk: 192.168.1.101:2181(CONNECTED) 32]

connect host:port 连接其他服务器

close 关闭connect连接的服务器

quit 退出zookeeper客户端连接