HBase單機環境搭建及入門

來源:互聯網
上載者:User

一、安裝環境

1、 VM:VMware-workstationl-v7.1.4

2、 OS:ubuntu-11.04

3、 JDK:jdk1.6.0_27

4、 HBase:hbase-0.90.4.tar.gz

二、下載並解壓HBase發行包

1、本文使用HBase穩定版:hbase-0.90.4.tar.gz。其:

http://www.apache.org/dyn/closer.cgi/hbase/

2、將hbase-0.90.4.tar.gz放入自己選好的檔案夾下,解壓。Shell命令如下:

$ tar xfz hbase-0.90.4.tar.gz

$ cd hbase-0.90.4

三、修改HBase設定檔

1、 hbase-env.sh

取消配置JDK的注釋並做並如下修改(我的JDK安裝路徑):

export JAVA_HOME=/usr/java/jdk1.6.0_27/

2、 hbase-site.xml

因為是單機啟動,所以只設定了HBase寫入的本地路徑,修改如下:

<?xml version="1.0"?>

<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<configuration>

  <property>

    <name>hbase.rootdir</name>

    <value>/home/hbase</value>

  </property>

</configuration>

 

四、啟動HBase

root@ubuntu:/usr/hbase/hbase-0.90.4# bin/start-hbase.sh

starting master, logging to /usr/hbase/hbase-0.90.4/bin/../logs/hbase-root-master-ubuntu.out

五、Shell實踐

1、用shell來串連HBase.

root@ubuntu:/usr/hbase/hbase-0.90.4# bin/hbase shell

HBase Shell; enter 'help<RETURN>' for list of supported commands.

Type "exit<RETURN>" to leave the HBase Shell

Version 0.90.4, r1150278, Sun Jul 24 15:53:29 PDT 2011

3、 建表操作示範

hbase(main):004:0> create 'table1','col1'

0 row(s) in 1.1070 seconds

 

hbase(main):005:0> list

TABLE                                                                          

table1                                                                         

test1                                                                           

2 row(s) in 0.0210 seconds

 

hbase(main):006:0> put 'table1','row1','col1:a','value1'

0 row(s) in 0.2710 seconds

 

hbase(main):008:0> put 'table1','row2','col1:b','value2'

0 row(s) in 0.0090 seconds

 

hbase(main):009:0> put 'table1','row3','col1:c','value3'

0 row(s) in 0.0070 seconds

 

hbase(main):010:0>

4、 用scan查看錶所有資料

hbase(main):010:0> scan 'table1'

ROW                  COLUMN+CELL                                              

row1                 column=col1:a, timestamp=1317180621803, value=value1     

row2                 column=col1:b, timestamp=1317180679999, value=value2     

row3                 column=col1:c, timestamp=1317180708854, value=value3     

3 row(s) in 0.0570 seconds

5、 用get查看單行資料

hbase(main):011:0> get 'table1','row1'

COLUMN               CELL                                                     

col1:a               timestamp=1317180621803, value=value1                    

1 row(s) in 0.0160 seconds

6、 用disable和drop刪除表

hbase(main):017:0> disable 'table1'

0 row(s) in 2.0470 seconds

 

hbase(main):018:0> drop 'table1'

0 row(s) in 0.0960 seconds

 

hbase(main):019:0> list

TABLE                                                                                                                                                   

1 row(s) in 0.0170 seconds

六、停止HBase

root@ubuntu:/usr/hbase/hbase-0.90.4# bin/stop-hbase.sh

stopping hbase.......

 

七、通過瀏覽器查看HBase資訊

訪問地址:http://localhost:60010/

效果如下:

 

八、啟動HBase Rest服務

啟動命令如下:

root@ubuntu:/usr/hbase/hbase-0.90.4# bin/hbase rest start

11/09/27 20:58:01 INFO jvm.JvmMetrics: Initializing JVM Metrics with processName=rest, sessionId=main

11/09/27 20:58:01 INFO hbase.metrics: new MBeanInfo

11/09/27 20:58:01 INFO mortbay.log: Logging to org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via org.mortbay.log.Slf4jLog

11/09/27 20:58:01 INFO mortbay.log: jetty-6.1.26

11/09/27 20:58:01 INFO mortbay.log: Started
SocketConnector@0.0.0.0:8080

 

測試:http://localhost:8080/

註:可以用REST操作(GET/POST/PUT/DELETE)實現對HBase的REST形式資料操作。

 

九、遇到的問題

hbase(main):001:0> create 'test','cf'

 

ERROR: org.apache.hadoop.hbase.NotAllMetaRegionsOnlineException: org.apache.hadoop.hbase.NotAllMetaRegionsOnlineException: Timed out (10000ms)

 

解決方案:修改/etc/hosts。把ubuntu對應的127.0.1.1改成原生IP。OK!

十、其它

HBase下載:

http://hbase.apache.org/

HBase英文開發指南:

http://hbase.apache.org/book/book.html

 

 

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