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Posted to common-dev@hadoop.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2008/07/29 01:34:31 UTC
[jira] Commented: (HADOOP-3837) hadop streaming does not use
progress reporting to detect hung tasks
[ https://issues.apache.org/jira/browse/HADOOP-3837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12617615#action_12617615 ]
Hadoop QA commented on HADOOP-3837:
-----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12387058/streamTimeout.patch
against trunk revision 679930.
+1 @author. The patch does not contain any @author tags.
-1 tests included. The patch doesn't appear to include any new or modified tests.
Please justify why no tests are needed for this patch.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of release audit warnings.
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2962/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2962/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2962/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2962/console
This message is automatically generated.
> hadop streaming does not use progress reporting to detect hung tasks
> --------------------------------------------------------------------
>
> Key: HADOOP-3837
> URL: https://issues.apache.org/jira/browse/HADOOP-3837
> Project: Hadoop Core
> Issue Type: Bug
> Components: contrib/streaming
> Affects Versions: 0.17.0
> Reporter: dhruba borthakur
> Assignee: dhruba borthakur
> Fix For: 0.18.0, 0.19.0
>
> Attachments: streamTimeout.patch, streamTimeout.patch
>
>
> Hadoop streaming (StreamJob.java) sets mapred.task.timeout to 0. This effectively means that if tasks hang (either due to bad user code or machine related issue), these tasks never encounters a timeout. This causes the entire job to hang.
> I propose that hadoop streaming not set the timeout to 0. By default, the settings in hadoop-default.xml should be effective for streaming jobs.
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