HBase与Zookeeper数据结构查询

一、前言

　最近一年了吧，总是忙于特定项目的业务分析和顶层设计，很少花时间和精力放到具体的技术细节，感觉除了架构理念和分析能力的提升，在具体技术层次却并没有多大的进步。因为一些原因，总被人问及一些技术细节，很多细节都模糊了，花点时间，温习一下吧。技术部分将作为下一个阶段的工作重点。　

二、操作说明

查看Zookeeper内部HBase相关数据，有两个主要的渠道：一、通过Hbase shell命令zk_dump查看；二、通过zk_cli.sh查看；

三、zk_dump

 1 HBase is rooted at /hbase
 2 Active master address: localhost,60000,1411261739960
 3 Backup master addresses:
 4 Region server holding hbase:meta: localhost,60020,1411261739301
 5 Region servers:
 6  localhost,60020,1411261739301
 7 /hbase/replication:
 8 /hbase/replication/peers:
 9 /hbase/replication/rs:
10 /hbase/replication/rs/localhost,60020,1411261739301:
11 Quorum Server Statistics:
12  192.168.230.128:2181
13   Zookeeper version: 3.4.6-1569965, built on 02/20/2014 09:09 GMT
14   Clients:
15    /192.168.230.128:54264[1](queued=0,recved=204,sent=212)
16    /192.168.230.128:54269[1](queued=0,recved=113,sent=113)
17    /192.168.230.128:54265[1](queued=0,recved=460,sent=507)
18    /192.168.230.128:54271[1](queued=0,recved=131,sent=131)
19    /192.168.230.128:54274[1](queued=0,recved=86,sent=86)
20    /192.168.230.128:54656[1](queued=0,recved=12,sent=12)
21    /192.168.230.128:54654[1](queued=0,recved=3,sent=3)
22    /192.168.230.128:54270[1](queued=0,recved=94,sent=94)
23    /192.168.230.128:54481[1](queued=0,recved=242,sent=242)
24    /192.168.230.128:54657[0](queued=0,recved=1,sent=0)
25
26   Latency min/avg/max: 0/1/155
27   Received: 1352
28   Sent: 1406
29   Connections: 10
30   Outstanding: 0
31   Zxid: 0x65
32   Mode: standalone
33   Node count: 38

四、zk_cli.sh

 1 [zk: 192.168.230.128:2181(CONNECTED) 30] ls
 2 ZooKeeper -server host:port cmd args
 3         connect host:port
 4         get path [watch]
 5         ls path [watch]
 6         set path data [version]
 7         rmr path
 8         delquota [-n|-b] path
 9         quit
10         printwatches on|off
11         create [-s] [-e] path data acl
12         stat path [watch]
13         close
14         ls2 path [watch]
15         history
16         listquota path
17         setAcl path acl
18         getAcl path
19         sync path
20         redo cmdno
21         addauth scheme auth
22         delete path [version]
23         setquota -n|-b val path
24 [zk: 192.168.230.128:2181(CONNECTED) 31] ls /
25 [hbase, zookeeper]
26 [zk: 192.168.230.128:2181(CONNECTED) 32] ls /hbase
27 [meta-region-server, backup-masters, table, draining, region-in-transition, table-lock, running, master, namespace, hbaseid, online-snapshot, replication, splitWAL, recovering-regions, rs]
28 [zk: 192.168.230.128:2181(CONNECTED) 33]

五、说明

　　关于输出结果的解读，就不去细说了，感兴趣的兄弟，自己去问度娘吧。

　　莫愁前路无知己，夜漫自有早行人。大数据架构师技术交流： 347018601