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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
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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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