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From 周俊清 <2ho...@163.com>
Subject Re:Re: what happen in my hadoop cluster?
Date Wed, 27 Jul 2011 07:37:53 GMT
Yes,I can see all the data node from web page:http://dn224.pengyun.org:50070/dfsnodelist.jsp?

--
----------------------------
周俊清
2houjq@163.com



在 2011-07-27 15:30:37,"Harsh J" <harsh@cloudera.com> 写道:
>Are all your DataNodes up?
>
>2011/7/27 周俊清 <2houjq@163.com>:
>> hello everyone,
>>     I got an exception from my jobtracker's log file as follow:
>> 2011-07-27 01:58:04,197 INFO org.apache.hadoop.mapred.JobTracker: Cleaning
>> up the system directory
>> 2011-07-27 01:58:04,230 INFO org.apache.hadoop.mapred.JobTracker: problem
>> cleaning system directory:
>> hdfs://dn224.pengyun.org:56900/home/hadoop/hadoop-tmp203/mapred/system
>> org.apache.hadoop.ipc.RemoteException:
>> org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot delete
>> /home/hadoop/hadoop-tmp203/mapred/system. Name node is in safe mode.
>> The ratio of reported blocks 0.2915 has not reached the threshold 0.9990.
>> Safe mode will be turned off automatically.
>>     at
>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.deleteInternal(FSNamesystem.java:1851)
>>     at
>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.delete(FSNamesystem.java:1831)
>>     at
>> org.apache.hadoop.hdfs.server.namenode.NameNode.delete(NameNode.java:691)
>>     ……
>> and
>>    the log message of namenode:
>> 2011-07-27 00:00:00,219 INFO org.apache.hadoop.ipc.Server: IPC Server
>> handler 1 on 56900, call delete(/home/hadoop/hadoop-tmp203/mapred/system,
>> true) from 192.168.1.224:5131
>> 2: error: org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot
>> delete /home/hadoop/hadoop-tmp203/mapred/system. Name node is in safe mode.
>> The ratio of reported blocks 0.2915 has not reached the threshold 0.9990.
>> Safe mode will be turned off automatically.
>> org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot delete
>> /home/hadoop/hadoop-tmp203/mapred/system. Name node is in safe mode.
>> The ratio of reported blocks 0.2915 has not reached the threshold 0.9990.
>> Safe mode will be turned off automatically.
>>     at
>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.deleteInternal(FSNamesystem.java:1851)
>>     at
>> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.delete(FSNamesystem.java:1831)
>>     at
>> org.apache.hadoop.hdfs.server.namenode.NameNode.delete(NameNode.java:691)
>>     at sun.reflect.GeneratedMethodAccessor5.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$Server.call(RPC.java:523)
>>     at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1383)
>>     at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1379)
>>     at java.security.AccessController.doPrivileged(Native Method)
>>     at javax.security.auth.Subject.doAs(Subject.java:396)
>>     at
>> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
>>     at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1377)
>>
>>  It means,I think,that the namenode is always being in the safe mode,so what
>> can i do about these exception.Anyone who can tell me why?I don't find the
>> file "/home/hadoop/hadoop-tmp203/mapred/system" in my system.The exception
>> upon which appearing in the log file are repeated,even when I restart my
>> hadoop.
>>    thanks for your concern.
>>
>>
>> ----------------------------
>> Junqing Zhou
>> 2houjq@163.com
>>
>>
>>
>>
>
>
>
>-- 
>Harsh J
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