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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1520) IndexOutOfBoundsException in FSEditLog.processIOError
Date Fri, 29 Jun 2007 01:11:04 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12508977
] 

Hairong Kuang commented on HADOOP-1520:
---------------------------------------

+1 The patch looks good.

> IndexOutOfBoundsException in FSEditLog.processIOError
> -----------------------------------------------------
>
>                 Key: HADOOP-1520
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1520
>             Project: Hadoop
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.14.0
>            Reporter: Nigel Daley
>            Assignee: dhruba borthakur
>            Priority: Blocker
>             Fix For: 0.14.0
>
>         Attachments: 1520.patch
>
>
> Running NNBench I saw these exceptions in the NameNode logs:
> NAMENODE:
> 2007-06-21 04:02:53,587 INFO org.apache.hadoop.fs.FSNamesystem: Roll FSImage
> 2007-06-21 04:02:53,594 INFO org.apache.hadoop.ipc.Server: IPC Server handler 0 on 8020,
call complete(/user/hadoopqa/nameNode100Benchmark/output/.214.crc, DFSClient_-1646448212)
from 72.30.51.75:56245: error: java.io.IOException: java.lang.IndexOutOfBoundsException: Index:
0, Size: 0
> java.io.IOException: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
>         at java.util.ArrayList.RangeCheck(ArrayList.java:547)
>         at java.util.ArrayList.remove(ArrayList.java:387)
>         at org.apache.hadoop.dfs.FSEditLog.processIOError(FSEditLog.java:169)
>         at org.apache.hadoop.dfs.FSEditLog.logSync(FSEditLog.java:407)
>         at org.apache.hadoop.dfs.FSNamesystem.completeFile(FSNamesystem.java:878)
>         at org.apache.hadoop.dfs.NameNode.complete(NameNode.java:346)
>         at sun.reflect.GeneratedMethodAccessor16.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$Server.call(RPC.java:340)
>         at org.apache.hadoop.ipc.Server$Handler.run(Server.java:566)
> ...
> 2007-06-21 04:02:53,823 WARN org.apache.hadoop.dfs.StateChange: DIR* NameSystem.completeFile:
failed to complete /user/hadoopqa/nameNode100Benchmark/output/.214.crc because dir.getFileBlocks()
is non-null and pendingFile is null
> 2007-06-21 04:02:53,828 INFO org.apache.hadoop.ipc.Server: IPC Server handler 14 on 8020,
call complete(/user/hadoopqa/nameNode100Benchmark/output/.214.crc, DFSClient_-1646448212)
from 72.30.51.75:56245: error: java.io.IOException: Could not complete write to file /user/hadoopqa/nameNode100Benchmark/output/.214.crc
by DFSClient_-1646448212
> java.io.IOException: Could not complete write to file /user/hadoopqa/nameNode100Benchmark/output/.214.crc
by DFSClient_-1646448212
>         at org.apache.hadoop.dfs.NameNode.complete(NameNode.java:352)
>         at sun.reflect.GeneratedMethodAccessor16.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$Server.call(RPC.java:340)
>         at org.apache.hadoop.ipc.Server$Handler.run(Server.java:566)
> This last exception occurs over and over again forever (this could be a result of the
way NNBench is written).

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