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Posted to common-dev@hadoop.apache.org by "Runping Qi (JIRA)" <ji...@apache.org> on 2009/03/30 19:14:50 UTC

[jira] Created: (HADOOP-5594) NameNode entered into an infinite loop of logging

NameNode entered into an infinite loop of logging
-------------------------------------------------

                 Key: HADOOP-5594
                 URL: https://issues.apache.org/jira/browse/HADOOP-5594
             Project: Hadoop Core
          Issue Type: Bug
          Components: dfs
    Affects Versions: 0.19.0
            Reporter: Runping Qi



We have a cluster running Hadoop 0.19.0.
For some reason, the name node entered into an infinite loop of spitting the following message once every second:

2009-03-30 00:00:02,658 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: commitBlockSynchronization(lastblock=blk_2800657178116909860_14611, newgenerationstamp=0, newlength=0, newtargets=[])
2009-03-30 00:00:02,658 INFO org.apache.hadoop.ipc.Server: IPC Server handler 4 on 8088, call commitBlockSynchronization(blk_2800657178116909860_14611, 0, 0, false, true, [Lorg.apache.hadoop.hdfs.protocol.DatanodeID;@1558378) from 10.126.185.32:45347: error: java.io.IOException: Block (=blk_2800657178116909860_14611) not found
java.io.IOException: Block (=blk_2800657178116909860_14611) not found
	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.commitBlockSynchronization(FSNamesystem.java:1898)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.commitBlockSynchronization(NameNode.java:410)
	at sun.reflect.GeneratedMethodAccessor4.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$Server.call(RPC.java:452)
	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:892)



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[jira] Commented: (HADOOP-5594) NameNode entered into an infinite loop of logging

Posted by "Hairong Kuang (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/HADOOP-5594?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12693857#action_12693857 ] 

Hairong Kuang commented on HADOOP-5594:
---------------------------------------

This infinite retry loop might be cased by the same problem reported in HADOOP-5311. The infinite retry got fixed in HADOOP-3998. Runping, could you please check the dfs client log to provide us more information?

> NameNode entered into an infinite loop of logging
> -------------------------------------------------
>
>                 Key: HADOOP-5594
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5594
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.19.0
>            Reporter: Runping Qi
>
> We have a cluster running Hadoop 0.19.0.
> For some reason, the name node entered into an infinite loop of spitting the following message once every second:
> 2009-03-30 00:00:02,658 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: commitBlockSynchronization(lastblock=blk_2800657178116909860_14611, newgenerationstamp=0, newlength=0, newtargets=[])
> 2009-03-30 00:00:02,658 INFO org.apache.hadoop.ipc.Server: IPC Server handler 4 on 8088, call commitBlockSynchronization(blk_2800657178116909860_14611, 0, 0, false, true, [Lorg.apache.hadoop.hdfs.protocol.DatanodeID;@1558378) from 10.126.185.32:45347: error: java.io.IOException: Block (=blk_2800657178116909860_14611) not found
> java.io.IOException: Block (=blk_2800657178116909860_14611) not found
> 	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.commitBlockSynchronization(FSNamesystem.java:1898)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.commitBlockSynchronization(NameNode.java:410)
> 	at sun.reflect.GeneratedMethodAccessor4.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$Server.call(RPC.java:452)
> 	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:892)

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