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https://issues.apache.org/jira/browse/HADOOP-3762?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12614942#action_12614942
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Hadoop QA commented on HADOOP-3762:
-----------------------------------
+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12386435/HADOOP-3762.patch
against trunk revision 678080.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 4 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/2908/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2908/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2908/artifact/trunk/build/test/checkstyle-errors.html
Console output:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2908/console
This message is automatically generated.
> Task tracker died due to OOM
> -----------------------------
>
> Key: HADOOP-3762
> URL: https://issues.apache.org/jira/browse/HADOOP-3762
> Project: Hadoop Core
> Issue Type: Bug
> Reporter: Runping Qi
> Assignee: Doug Cutting
> Priority: Blocker
> Fix For: 0.18.0
>
> Attachments: 3762_20080715.patch, 3762_20080715b.patch,
> 3762_20080715c.patch, 3762_20080717.patch, HADOOP-3762.patch,
> HADOOP-3762.patch, HADOOP-3762.patch, HADOOP-3762.patch,
> TaskTrackerStackTrace.txt
>
>
> When running about 100 moderate jobs on a small cluster (with 19 Task
> Trackers),
> the task trackers all died due to OOM.
> I got a chance to dump the jstack strace of a task tracker before it died.
> Its image size was close 4GB!
> I saw 1200+ threads of DFSClient.LeaseChecker.
> Clearly we have a severe resource leakage problem!
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