[
https://issues.apache.org/jira/browse/YARN-6448?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Yufei Gu updated YARN-6448:
---------------------------
Description:
YARN-4719 remove the lock in continuous scheduling while sorting nodes. It
breaks the order in comparison if nodes changes while sorting.
{code}
2017-04-04 23:42:26,123 FATAL
org.apache.hadoop.yarn.server.resourcemanager.RMCriticalThreadUncaughtExceptionHandler:
Critical thread FairSchedulerContinuousScheduling crashed!
java.lang.IllegalArgumentException: Comparison method violates its general
contract!
at java.util.TimSort.mergeHi(TimSort.java:899)
at java.util.TimSort.mergeAt(TimSort.java:516)
at java.util.TimSort.mergeForceCollapse(TimSort.java:457)
at java.util.TimSort.sort(TimSort.java:254)
at java.util.Arrays.sort(Arrays.java:1512)
at java.util.ArrayList.sort(ArrayList.java:1454)
at java.util.Collections.sort(Collections.java:175)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.ClusterNodeTracker.sortedNodeList(ClusterNodeTracker.java:306)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.continuousSchedulingAttempt(FairScheduler.java:884)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler$ContinuousSchedulingThread.run(FairScheduler.java:316)
{code}
was:
YARN-4719 remove the lock in continuous scheduling while sorting nodes. It
breaks the order in comparison if nodes changes while sorting.
2017-04-04 23:42:26,123 FATAL
org.apache.hadoop.yarn.server.resourcemanager.RMCriticalThreadUncaughtExceptionHandler:
Critical thread FairSchedulerContinuousScheduling crashed!
{code}
java.lang.IllegalArgumentException: Comparison method violates its general
contract!
at java.util.TimSort.mergeHi(TimSort.java:899)
at java.util.TimSort.mergeAt(TimSort.java:516)
at java.util.TimSort.mergeForceCollapse(TimSort.java:457)
at java.util.TimSort.sort(TimSort.java:254)
at java.util.Arrays.sort(Arrays.java:1512)
at java.util.ArrayList.sort(ArrayList.java:1454)
at java.util.Collections.sort(Collections.java:175)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.ClusterNodeTracker.sortedNodeList(ClusterNodeTracker.java:306)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.continuousSchedulingAttempt(FairScheduler.java:884)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler$ContinuousSchedulingThread.run(FairScheduler.java:316)
{code}
> Add back the lock in continuous scheduling while sorting nodes
> --------------------------------------------------------------
>
> Key: YARN-6448
> URL: https://issues.apache.org/jira/browse/YARN-6448
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.9.0, 3.0.0-alpha2
> Reporter: Yufei Gu
> Assignee: Yufei Gu
> Attachments: YARN-6448.001.patch, YARN-6448.002.patch
>
>
> YARN-4719 remove the lock in continuous scheduling while sorting nodes. It
> breaks the order in comparison if nodes changes while sorting.
> {code}
> 2017-04-04 23:42:26,123 FATAL
> org.apache.hadoop.yarn.server.resourcemanager.RMCriticalThreadUncaughtExceptionHandler:
> Critical thread FairSchedulerContinuousScheduling crashed!
> java.lang.IllegalArgumentException: Comparison method violates its general
> contract!
> at java.util.TimSort.mergeHi(TimSort.java:899)
> at java.util.TimSort.mergeAt(TimSort.java:516)
> at java.util.TimSort.mergeForceCollapse(TimSort.java:457)
> at java.util.TimSort.sort(TimSort.java:254)
> at java.util.Arrays.sort(Arrays.java:1512)
> at java.util.ArrayList.sort(ArrayList.java:1454)
> at java.util.Collections.sort(Collections.java:175)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.ClusterNodeTracker.sortedNodeList(ClusterNodeTracker.java:306)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.continuousSchedulingAttempt(FairScheduler.java:884)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler$ContinuousSchedulingThread.run(FairScheduler.java:316)
> {code}
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