8、linux上安裝hbase

1.基本信息

版本	1.2.4
安裝機器	三臺機器
賬號	hadoop
源路徑	/opt/software/hbase-1.2.4-bin.tar.gz
目標路徑	/opt/hbase?->?/opt/hbase-1.2.4
依賴關系	無

2.安裝過程

1).使用hadoop賬號解壓到/opt/hadoop目錄下并設置軟連接：

 [root@bgs-5p173-wangwenting opt]# su hadoop
[hadoop@bgs-5p173-wangwenting opt]$ cd /opt/software
[hadoop@bgs-5p173-wangwenting software]$ tar -zxvf hbase-${version}-bin.tar.gz -C /opt
[hadoop@bgs-5p173-wangwenting software]$ cd /opt
[hadoop@bgs-5p173-wangwenting opt]$ ln -s? hbase-${version}/?? hbase

2).進入/opt/hbase/conf目錄,修改hbase-env.sh文件內容:

 [hadoop@bgs-5p173-wangwenting opt]$ cd /opt/hbase/conf
[hadoop@bgs-5p173-wangwenting opt]$ vim hbase-env.sh
export JAVA_HOME=/opt/java
export HBASE_PID_DIR=/opt/pids
export HADOOP_HOME=/opt/hadoop
export HBASE_HOME=/opt/hbase

3).修改hbase-site.xml文件內容:

 [hadoop@bgs-5p173-wangwenting opt]$ vim hbase-site.xml
添加下面內容
<configuration>
????<property>
????????<name>hbase.rootdir</name>
????????<value>hdfs://bgs-5p173-wangwenting:9000/hbase</value>
????</property>
????<property>
????????<name>hbase.cluster.distributed</name>
????????<value>true</value>
????</property>
????<property>
????????<name>hbase.zookeeper.quorum</name>
????????<value>bgs-5p173-wangwenting,bgs-5p174-wangwenting,bgs-5p175-wangwenting</value>
????</property>
</configuration>

4).修改/opt/hadoop/hbase/conf/regionservers文件內容:?

 [hadoop@bgs-5p173-wangwenting opt]$ vim /opt/hbase/conf/regionservers
添加以下內容：
bgs-5p174-wangwenting
bgs-5p175-wangwenting

5).通過scp復制到其它兩臺機器上:

 [hadoop@bgs-5p173-wangwenting opt]$ scp -r /opt/hbase-${version} hadoop@bgs-5p174-wangwenting:/opt
[hadoop@bgs-5p174-wangwenting opt]$ ln -s hbase-${version}/? hbase
[hadoop@bgs-5p173-wangwenting opt]$ scp -r /opt/hbase-${version} hadoop@bgs-5p175-wangwenting:/opt
[hadoop@bgs-5p175-wangwenting opt]$ ln -s hbase-${version}/? hbase

6).在bgs-5p173-wangwenting上啟動hbase集群:

[hadoop@bgs-5p173-wangwenting opt]$ /opt/hbase/bin/start-hbase.sh

7).查看集群是否啟動，運行jps

 [hadoop@bgs-5p173-wangwenting opt]$ jps
若bgs-5p173-wangwenting如下所示：
22898?ResourceManager
20739?Jps
24383?JobHistoryServer
20286?HMaster
22722?SecondaryNameNode
22488?NameNode
[hadoop@bgs-5p174-wangwenting opt]$ jps
2141?NodeManager
3257?HRegionServer
25283?Jps
1841?DataNode
[hadoop@bgs-5p175-wangwenting opt]$ jps
2141?NodeManager
3257?HRegionServer
25283?Jps
1841?DataNode
顯示有HMaster和HRegionServer,則說明啟動成功

8).使用/opt/hadoop/hbase/bin/hbase shell命令測試安裝結果:

[hadoop@bgs-5p173-wangwenting opt]$ /opt/hbase/bin/hbase shell

a.創建表test:?

 hbase(main):002:0> create?"test",?"cf"
0?row(s) in?2.5840?seconds
=> Hbase::Table - test

b.列出全部表:

 hbase(main):003:0> list
TABLE??????????????????????????????????????????????????????????????????????????????????????????????????????????????
test??????????????????????
1?row(s) in?0.0310?seconds
=> ["test"]

?如果在輸入list,有好幾次，啟動Hadoop和HBase之后，執行jps命令，已經看到有HMaster的進程，但是進入到HBase的shell，執行一個命令，會出現下面的錯誤：

解決方法：

進入到logs目錄查看master的日志：發現一直顯示下面的內容：

?vim hbase-hadoop-master-s1.log

2017-03-13 17:13:17,374 INFO org.apache.hadoop.hbase.util.FSUtils: Waiting for dfs to exit safe mode...
2017-03-13 17:13:27,377 INFO org.apache.hadoop.hbase.util.FSUtils: Waiting for dfs to exit safe mode...
2017-03-13 17:13:37,386 INFO org.apache.hadoop.hbase.util.FSUtils: Waiting for dfs to exit safe mode...
2017-03-13 17:13:47,393 INFO org.apache.hadoop.hbase.util.FSUtils: Waiting for dfs to exit safe mode...
2017-03-13 17:13:57,395 INFO org.apache.hadoop.hbase.util.FSUtils: Waiting for dfs to exit safe mode...
2017-03-13 17:14:07,409 INFO org.apache.hadoop.hbase.util.FSUtils: Waiting for dfs to exit safe mode...

原來是Hadoop在剛啟動的時候，還處在安全模式造成的,手動退出Hadoop的安全模式.然后重新啟動hbase服務。

重啟后輸入list，便不再報錯了。

?

c.插入數據到test表:

 hbase(main):001:0> put?"test","row","cf:a","value"
0?row(s) in?0.4150?seconds

d.查看test表信息:

 hbase(main):002:0> scan?'test'
ROW?????????? COLUMN+CELL?????????????????????????????????????????????????????????????????????????
row????????? column=cf:a, timestamp=1447246157917, value=value???????????????????????????????????
1?row(s) in?0.0270?seconds

若hbase shell測試成功，則進入瀏覽器訪問以下網址:http://172.24.5.173:16010/，

?

若正常顯示，則hbase集群安裝成功!??用ip保險一點，用域名首先要在自己的電腦host文件中配置。

9).啟動thriftserver2服務

 [hadoop@bgs-5p173-wangwenting opt]$ nohup /opt/hbase/bin/hbase-daemon.sh start thrift2 &