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https://issues.apache.org/jira/browse/MAPREDUCE-2214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12970534#action_12970534
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Ramkumar Vadali commented on MAPREDUCE-2214:
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TEST RESULTS
ant test-patch complains about unit-tests, but its difficult to come up with a
unit-test for this.
{code}
[exec] -1 overall.
[exec]
[exec] +1 @author. The patch does not contain any @author tags.
[exec]
[exec] -1 tests included. The patch doesn't appear to include any new
or modified tests.
[exec] Please justify why no new tests are needed
for this patch.
[exec] Also please list what manual steps were
performed to verify this patch.
[exec]
[exec] +1 javadoc. The javadoc tool did not generate any warning
messages.
[exec]
[exec] +1 javac. The applied patch does not increase the total number
of javac compiler warnings.
[exec]
[exec] +1 findbugs. The patch does not introduce any new Findbugs
(version 1.3.9) warnings.
[exec]
[exec] +1 release audit. The applied patch does not increase the
total number of release audit warnings.
[exec]
[exec] +1 system test framework. The patch passed system test
framework compile.
[exec]
[exec]
[exec]
[exec]
[exec]
======================================================================
[exec]
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[exec] Finished build.
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[exec]
{code}
ant test: there was only one test failure, but that fails in a clean checkout
too.
{code}
[junit] Test org.apache.hadoop.mapred.TestControlledMapReduceJob FAILED
(timeout)
{code}
> TaskTracker should release slot if task is not launched
> -------------------------------------------------------
>
> Key: MAPREDUCE-2214
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2214
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 0.20.1
> Reporter: Ramkumar Vadali
> Assignee: Ramkumar Vadali
> Attachments: MAPREDUCE-2214.patch
>
>
> TaskTracker.TaskInProgress.launchTask() does not launch a task if it is not
> in an expected state. However, in the case where the task is not launched,
> the slot is not released. We have observed this in production - the task was
> in SUCCEEDED state by the time launchTask() got to it and then the slot was
> never released. It is not clear how the task got into that state, but it is
> better to handle the case.
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