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Date: Wed, 3 Jun 2009 02:46:07 -0700 (PDT)
From: "Sreekanth Ramakrishnan (JIRA)" <jira@apache.org>
To: core-dev@hadoop.apache.org
Subject: [jira] Commented: (HADOOP-5869) TestQueueCapacities timeout in
 trunk.
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    [ https://issues.apache.org/jira/browse/HADOOP-5869?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12715883#action_12715883 ] 

Sreekanth Ramakrishnan commented on HADOOP-5869:
------------------------------------------------

The reason why the test case is currently timing out in the trunk is because, currently frame work returns setup and cleanup tasks always as a map task no matter which slot is free on task tracker. Causing setup and cleanup tasks to block. This causes the {{ControlledMapReduceJob}} to wait forever.

> TestQueueCapacities timeout in trunk.
> -------------------------------------
>
>                 Key: HADOOP-5869
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5869
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/capacity-sched
>            Reporter: Sreekanth Ramakrishnan
>         Attachments: hadoop-5869.patch, thread-dump.txt
>
>
> TestQueueCapacities in trunk currently times out with message failed to fetch map-outputs. Stack trace is:
> {noformat}
> 2009-05-19 10:54:01,162 WARN org.apache.hadoop.mapred.ReduceTask: \
>   attempt_200905191053_0001_r_000011_0 copy failed: attempt_200905191053_0001_m_000000_0 from localhost
> 2009-05-19 10:54:01,163 WARN org.apache.hadoop.mapred.ReduceTask: java.io.FileNotFoundException: \
>   http://localhost:54203/mapOutput?job=job_200905191053_0001&map=attempt_200905191053_0001_m_000000_0&reduce=11
>         at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1241)
>         at org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.getInputStream(ReduceTask.java:1436)
>         at org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.getMapOutput(ReduceTask.java:1353)
>         at org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.copyOutput(ReduceTask.java:1267)
>         at org.apache.hadoop.mapred.ReduceTask$ReduceCopier$MapOutputCopier.run(ReduceTask.java:1199)
> {noformat}

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