[
https://issues.apache.org/jira/browse/HADOOP-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12615499#action_12615499
]
Hadoop QA commented on HADOOP-9:
--------------------------------
+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12386584/hadoop9.patch
against trunk revision 678593.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 new or modified tests.
+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/2920/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2920/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2920/artifact/trunk/build/test/checkstyle-errors.html
Console output:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2920/console
This message is automatically generated.
> mapred.local.dir temp dir. space allocation limited by smallest area
> ---------------------------------------------------------------------
>
> Key: HADOOP-9
> URL: https://issues.apache.org/jira/browse/HADOOP-9
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Environment: all
> Reporter: Paul Baclace
> Assignee: Ari Rabkin
> Priority: Minor
> Attachments: hadoop9.patch
>
>
> When mapred.local.dir is used to specify multiple temp dir. areas, space
> allocation limited by smallest area because the temp dir. selection algorithm
> is "round robin starting from a randomish point". When round robin is used
> with approximately constant sized chunks, the smallest area runs out of space
> first, and this is a fatal error.
> Workaround: only list local fs dirs in mapred.local.dir with similarly-sized
> available areas.
> I wrote a patch to JobConf (currenly being tested) which uses df to check
> available space (once a minute or less often) and then uses an efficient
> roulette selection to do allocation weighted by magnitude of available space.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
