org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot rename /hbas...

2013-12-08 21:52:34,172 INFO org.apache.hadoop.ipc.Server: IPC Server handler 4 on 9000, call rename(/hbase/.logs/localhost.localdomain,60020,1386506622257, /hbase/.logs/localhost.localdomain,60020,1386506622257-splitting) from 192.168.0.101:42882: error: org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot rename /hbase/.logs/localhost.localdomain,60020,1386506622257. Name node is in safe mode.
The ratio of reported blocks 0.9792 has not reached the threshold 0.9990. Safe mode will be turned off automatically.
org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot rename /hbase/.logs/localhost.localdomain,60020,1386506622257. Name node is in safe mode.
The ratio of reported blocks 0.9792 has not reached the threshold 0.9990. Safe mode will be turned off automatically.
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.renameToInternal(FSNamesystem.java:1944)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.renameTo(FSNamesystem.java:1929)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.rename(NameNode.java:772)
        at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:563)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1388)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1384)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:396)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1382)
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今天遇到上面问题，找了一圈才是namenode安全模式问题。

hadoop dfsadmin -safemode leave
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