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Posted to mapreduce-issues@hadoop.apache.org by "Thomas Graves (JIRA)" <ji...@apache.org> on 2011/06/01 22:04:47 UTC
[jira] [Commented] (MAPREDUCE-2555) JvmInvalidate errors in the
gridmix TT logs
[ https://issues.apache.org/jira/browse/MAPREDUCE-2555?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13042392#comment-13042392 ]
Thomas Graves commented on MAPREDUCE-2555:
------------------------------------------
The exceptions are generated by status updates sent by the child after it reports 'done' to the TaskTracker. Ideally
this should not happen.
The fix for MAPREDUCE-2429 is meant to ignore such calls (since the child jvm is effectively not supposed to exist after the done call is processed).
In previous versions - the statusUpdate RPC would return success but would ignore the request.
This exception is effectively replacing another message from previous version (Ignoring status-update since task is
'done'). With the current code - the statusUpdate RPC fails - which causes the Child to retry - effectively generating way more messages in the logs.
> JvmInvalidate errors in the gridmix TT logs
> -------------------------------------------
>
> Key: MAPREDUCE-2555
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2555
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Affects Versions: 0.20.204.0
> Reporter: Thomas Graves
> Assignee: Thomas Graves
> Priority: Minor
>
> Observing a lot of jvmValidate exceptions in TT logs for grid mix run
> ************************
> 2011-04-28 02:00:37,578 INFO org.apache.hadoop.ipc.Server: IPC Server handler 7 on 46121, call
> statusUpdate(attempt_201104270735_5993_m_003305_0, org.apache.hadoop.mapred.MapTaskStatus@1840a9c,
> org.apache.hadoop.mapred.JvmContext@1d4ab6b) from 127.0.0.1:50864: error: java.io.IOException: JvmValidate Failed.
> Ignoring request from task: attempt_201104270735_5993_m_003305_0, with JvmId:
> jvm_201104270735_5993_m_103399012gsbl20430: java.io.IOException: JvmValidate Failed. Ignoring request from task:
> attempt_201104270735_5993_m_003305_0, with JvmId: jvm_201104270735_5993_m_103399012gsbl20430: --
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1386)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1384)
> *********************
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