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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1541) ipc.Server INFO message shouldn't include an Exception trace
Date Thu, 19 Jul 2007 17:17:06 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1541?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12513953

Doug Cutting commented on HADOOP-1541:

> I am inclined to mark this as 'resolved', or at least move it off the "Blocker" queue.


The bug is that isDir() uses exception handling to handle non-existent files rather than calling
exists().  Since isDir() is no longer called in this way by the core, this is no longer a
blocker.  If we intend to fix isDir() to call exists() then we should re-target this for 0.15,
but if we instead, intend to remove calls to isDir() in 0.15, then we should resolve this
now and file a new issue for that.

> ipc.Server INFO message shouldn't include an Exception trace
> ------------------------------------------------------------
>                 Key: HADOOP-1541
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1541
>             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: ipcExceptionLog3.patch
> I see a lot of these in the NN log.  I don't think an INFO message should contain an
error message and stack trace.
> 2007-06-28 00:21:51,057 INFO org.apache.hadoop.ipc.Server: IPC Server handler 7 on 8020,
call getFileInfo(/user/hadoopqa/mapred.loadtest/intermediateouts) from error:
java.io.IOException: File does not exist
> java.io.IOException: File does not exist
>         at org.apache.hadoop.dfs.FSDirectory.getFileInfo(FSDirectory.java:716)
>         at org.apache.hadoop.dfs.FSNamesystem.getFileInfo(FSNamesystem.java:1178)
>         at org.apache.hadoop.dfs.NameNode.getFileInfo(NameNode.java:479)
>         at sun.reflect.GeneratedMethodAccessor10.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)

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