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https://issues.apache.org/jira/browse/YARN-2874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14232456#comment-14232456
]
Hadoop QA commented on YARN-2874:
---------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12682188/YARN-2874.20141118-2.patch
against trunk revision 185e0c7.
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:red}-1 tests included{color}. The patch doesn't appear to include
any new or modified tests.
Please justify why no new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. There were no new javadoc warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 2.0.3) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-YARN-Build/5985//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/5985//console
This message is automatically generated.
> Dead lock in "DelegationTokenRenewer" which blocks RM to execute any further
> apps
> ---------------------------------------------------------------------------------
>
> Key: YARN-2874
> URL: https://issues.apache.org/jira/browse/YARN-2874
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Affects Versions: 2.6.0, 2.5.1
> Reporter: Naganarasimha G R
> Assignee: Naganarasimha G R
> Priority: Blocker
> Attachments: YARN-2874.20141118-1.patch, YARN-2874.20141118-2.patch
>
>
> When token renewal fails and the application finishes this dead lock can occur
> Jstack dump :
> {quote}
> Found one Java-level deadlock:
> =============================
> "DelegationTokenRenewer #181865":
> waiting to lock monitor 0x0000000000900918 (object 0x00000000c18a9998, a
> java.util.Collections$SynchronizedSet),
> which is held by "DelayedTokenCanceller"
> "DelayedTokenCanceller":
> waiting to lock monitor 0x0000000004141718 (object 0x00000000c7eae720, a
> org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer$RenewalTimerTask),
> which is held by "Timer-4"
> "Timer-4":
> waiting to lock monitor 0x0000000000900918 (object 0x00000000c18a9998, a
> java.util.Collections$SynchronizedSet),
> which is held by "DelayedTokenCanceller"
>
> Java stack information for the threads listed above:
> ===================================================
> "DelegationTokenRenewer #181865":
> at java.util.Collections$SynchronizedCollection.add(Collections.java:1636)
> - waiting to lock <0x00000000c18a9998> (a
> java.util.Collections$SynchronizedSet)
> at
> org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer.addTokenToList(DelegationTokenRenewer.java:322)
> at
> org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer.handleAppSubmitEvent(DelegationTokenRenewer.java:398)
> at
> org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer.access$500(DelegationTokenRenewer.java:70)
> at
> org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer$DelegationTokenRenewerRunnable.handleDTRenewerAppSubmitEvent(DelegationTokenRenewer.java:657)
> at
> org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer$DelegationTokenRenewerRunnable.run(DelegationTokenRenewer.java:638)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> "DelayedTokenCanceller":
> at
> org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer$RenewalTimerTask.cancel(DelegationTokenRenewer.java:443)
> - waiting to lock <0x00000000c7eae720> (a
> org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer$RenewalTimerTask)
> at
> org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer.removeApplicationFromRenewal(DelegationTokenRenewer.java:558)
> - locked <0x00000000c18a9998> (a java.util.Collections$SynchronizedSet)
> at
> org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer.access$300(DelegationTokenRenewer.java:70)
> at
> org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer$DelayedTokenRemovalRunnable.run(DelegationTokenRenewer.java:599)
> at java.lang.Thread.run(Thread.java:745)
> "Timer-4":
> at java.util.Collections$SynchronizedCollection.remove(Collections.java:1639)
> - waiting to lock <0x00000000c18a9998> (a
> java.util.Collections$SynchronizedSet)
> at
> org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer.removeFailedDelegationToken(DelegationTokenRenewer.java:503)
> at
> org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer.access$100(DelegationTokenRenewer.java:70)
> at
> org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer$RenewalTimerTask.run(DelegationTokenRenewer.java:437)
> - locked <0x00000000c7eae720> (a
> org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer$RenewalTimerTask)
> at java.util.TimerThread.mainLoop(Timer.java:555)
> at java.util.TimerThread.run(Timer.java:505)
>
> Found 1 deadlock.
> {quote}
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