ZooKeeper 客户端的使用
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cd bin zkCli.sh -timeout 5000 -server 27.154.242.214:5091 |
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[zk: 27.154.242.214:5091(CONNECTED) 2] h 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 |
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[zk: 27.154.242.214:5091(CONNECTED) 11] create /note1 123 Created /note1 |
-s 表示是顺序节点 -e表示为临时节点
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[zk: 27.154.242.214:5091(CONNECTED) 11] create /note2 123 Created /note2 |
顺序节点
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[zk: 27.154.242.214:5091(CONNECTED) 1] create -s /note1/note13 1333 Created /note1/note130000000002 [zk: 27.154.242.214:5091(CONNECTED) 2] create -s /note1/note13 1333 Created /note1/note130000000003 |
查看节点状态
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[zk: 27.154.242.214:5091(CONNECTED) 12] stat /note1 cZxid = 0xc0b ctime = Sun Aug 21 07:42:06 CST 2016 mZxid = 0xc0b mtime = Sun Aug 21 07:42:06 CST 2016 pZxid = 0xc0b cversion = 0 dataVersion = 0 aclVersion = 0 ephemeralOwner = 0x0 dataLength = 3 numChildren = 0 |
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[zk: 27.154.242.214:5091(CONNECTED) 13] get /note1 123 cZxid = 0xc0b ctime = Sun Aug 21 07:42:06 CST 2016 mZxid = 0xc0b mtime = Sun Aug 21 07:42:06 CST 2016 pZxid = 0xc0b cversion = 0 dataVersion = 0 aclVersion = 0 ephemeralOwner = 0x0 dataLength = 3 numChildren = 0 |
ls2列出当前节点的子节点同时输出stat信息
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[zk: 27.154.242.214:5091(CONNECTED) 16] create /note1/note11 456 [zk: 27.154.242.214:5091(CONNECTED) 18] create /note1/note12 789 [zk: 27.154.242.214:5091(CONNECTED) 19] ls2 /note1 [note12, note11] cZxid = 0xc0b ctime = Sun Aug 21 07:42:06 CST 2016 mZxid = 0xc0b mtime = Sun Aug 21 07:42:06 CST 2016 pZxid = 0xc0d cversion = 2 dataVersion = 0 aclVersion = 0 ephemeralOwner = 0x0 dataLength = 3 numChildren = 2 |
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[zk: 27.154.242.214:5091(CONNECTED) 8] set /note1/note11 111 cZxid = 0xc0c ctime = Sun Aug 21 07:47:28 CST 2016 mZxid = 0xc15 mtime = Sun Aug 21 09:12:07 CST 2016 pZxid = 0xc0c cversion = 0 dataVersion = 1 aclVersion = 0 ephemeralOwner = 0x0 dataLength = 3 numChildren = 0 [zk: 27.154.242.214:5091(CONNECTED) 9] get /note1/note11 111 cZxid = 0xc0c ctime = Sun Aug 21 07:47:28 CST 2016 mZxid = 0xc15 mtime = Sun Aug 21 09:12:07 CST 2016 pZxid = 0xc0c cversion = 0 dataVersion = 1 aclVersion = 0 ephemeralOwner = 0x0 dataLength = 3 numChildren = 0 |
删除节点
(rmr 循环删除节点及其子节点)
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[zk: 27.154.242.214:5091(CONNECTED) 10] delete /note1/note11 [zk: 27.154.242.214:5091(CONNECTED) 11] ls /note1 [note12, note130000000002, note130000000003] [zk: 27.154.242.214:5091(CONNECTED) 12] delete /note1 Node not empty: /note1 [zk: 27.154.242.214:5091(CONNECTED) 13] rmr /note1 [zk: 27.154.242.214:5091(CONNECTED) 14] ls / [server, zookeeper, config] |
配额相关的指令
设置配额
[setquota -n|-b val path]
-n限制子节点的个数 –b限制数据的长度
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[zk: 27.154.242.214:5091(CONNECTED) 18] create /note1 123 Created /note1 [zk: 27.154.242.214:5091(CONNECTED) 19] setquota -n 2 /note1 Comment: the parts are option -n val 2 path /note1 [zk: 27.154.242.214:5091(CONNECTED) 20] create /note1/note11 11 Created /note1/note11 [zk: 27.154.242.214:5091(CONNECTED) 21] create /note1/note12 12 Created /note1/note12 [zk: 27.154.242.214:5091(CONNECTED) 22] create /note1/note13 13 Created /note1/note13 |
发现超限了仅仅在日志记录超限信息的警告不会有异常如下:
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[lzmhdev@lzmh01 zookeeper-3.4.8]$ cd bin [lzmhdev@lzmh01 bin]$ ls README.txt zkCleanup.sh zkCli.cmd zkCli.sh zkEnv.cmd zkEnv.sh zkServer.cmd zkServer.sh zookeeper.out [lzmhdev@lzmh01 bin]$ tail -f zookeeper.out at java.lang.Thread.run(Thread.java:745) 2016-08-21 08:54:07,402 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0 /0 .0.0.0:5091:NIOServerCnxn@1008] - Closed socket connection for client /123 .59.54.18:34285 which had sessionid 0x156aa06f8d60001 2016-08-21 08:54:12,000 [myid:] - INFO [SessionTracker:ZooKeeperServer@355] - Expiring session 0x156aa06f8d60001, timeout of 5000ms exceeded 2016-08-21 08:54:12,001 [myid:] - INFO [ProcessThread(sid:0 cport:5091)::PrepRequestProcessor@489] - Processed session termination for sessionid: 0x156aa06f8d60001 2016-08-21 08:54:21,201 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0 /0 .0.0.0:5091:NIOServerCnxnFactory@192] - Accepted socket connection from /123 .59.54.18:34338 2016-08-21 08:54:21,205 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0 /0 .0.0.0:5091:ZooKeeperServer@900] - Client attempting to establish new session at /123 .59.54.18:34338 2016-08-21 08:54:21,223 [myid:] - INFO [SyncThread:0:ZooKeeperServer@645] - Established session 0x156aa06f8d60002 with negotiated timeout 5000 for client /123 .59.54.18:34338 2016-08-21 09:14:54,075 [myid:] - INFO [ProcessThread(sid:0 cport:5091)::PrepRequestProcessor@651] - Got user-level KeeperException when processing sessionid:0x156aa06f8d60002 type :delete cxid:0x15 zxid:0xc17 txntype:-1 reqpath:n /a Error Path: /note1 Error:KeeperErrorCode = Directory not empty for /note1 2016-08-21 10:10:41,080 [myid:] - WARN [SyncThread:0:DataTree@389] - Quota exceeded: /note1 count=3 limit=2 |
查看指定数据节点的配额情况
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[zk: 27.154.242.214:5091(CONNECTED) 23] listquota /note1 absolute path is /zookeeper/quota/note1/zookeeper_limits Output quota for /note1 count=2,bytes=-1 Output stat for /note1 count=4,bytes=9 |
-1 长度没有限制
删除配额
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[zk: 27.154.242.214:5091(CONNECTED) 24] delquota -n /note1 [zk: 27.154.242.214:5091(CONNECTED) 25] listquota /note1 absolute path is /zookeeper/quota/note1/zookeeper_limits Output quota for /note1 count=-1,bytes=-1 Output stat for /note1 count=4,bytes=9 |
查看历史
并重复执行
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[zk: 27.154.242.214:5091(CONNECTED) 26] history 16 - create /note1 17 - setquota -n 2 /note1 18 - create /note1 123 19 - setquota -n 2 /note1 20 - create /note1/note11 11 21 - create /note1/note12 12 22 - create /note1/note13 13 23 - listquota /note1 24 - delquota -n /note1 25 - listquota /note1 26 - history [zk: 27.154.242.214:5091(CONNECTED) 27] redo 25 absolute path is /zookeeper/quota/note1/zookeeper_limits Output quota for /note1 count=-1,bytes=-1 Output stat for /note1 count=4,bytes=9 |
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