cp /opt/hbase/lib/hadoop-core-0.20-append-r1056497.jar /opt/hbase/lib/hadoop-core-0.20-append-r1056497.jar.bk
cp /opt/hadoop/hadoop-0.20.2-core.jar /opt/hbase/lib/hadoop-core-0.20-append-r1056497.jar
格式化namenode:
hadoop namenode -format
【测试使用】
命令行：
[root@master bin]# ./hadoop dfsadmin -report
Configured Capacity: 23820673024 (22.18 GB)
Present Capacity: 12142039040 (11.31 GB)
DFS Remaining: 12141969408 (11.31 GB)
DFS Used: 69632 (68 KB)
DFS Used%: 0%
Under replicated blocks: 0
Blocks with corrupt replicas: 0
Missing blocks: 0
-------------------------------------------------
Datanodes available: 1 (1 total, 0 dead)
Name: 10.64.68.131:50010
Decommission Status : Normal
Configured Capacity: 23820673024 (22.18 GB)
DFS Used: 69632 (68 KB)
Non DFS Used: 11678633984 (10.88 GB)
DFS Remaining: 12141969408(11.31 GB)
DFS Used%: 0%
DFS Remaining%: 50.97%
Last contact: Tue Apr 10 14:50:21 PDT 2012
浏览器访问：
:50070/
:50030/
更多Hadoop相关信息见Hadoop 专题页面 ?tid=13