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https://issues.apache.org/jira/browse/YARN-8737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17217413#comment-17217413
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Hadoop QA commented on YARN-8737:
---------------------------------
| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Logfile || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 1m
21s{color} | | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} || ||
| {color:green}+1{color} | {color:green} dupname {color} | {color:green} 0m
0s{color} | | {color:green} No case conflicting files found. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | | {color:green} The patch does not contain any @author tags.
{color} |
| {color:red}-1{color} | {color:red} test4tests {color} | {color:red} 0m
0s{color} | | {color:red} 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} |
|| || || || {color:brown} trunk Compile Tests {color} || ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 22m
56s{color} | | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
58s{color} | | {color:green} trunk passed with JDK
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
49s{color} | | {color:green} trunk passed with JDK Private
Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
36s{color} | | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
53s{color} | | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
17m 45s{color} | | {color:green} branch has no errors when building and
testing our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
38s{color} | | {color:green} trunk passed with JDK
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
34s{color} | | {color:green} trunk passed with JDK Private
Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue} 1m
47s{color} | | {color:blue} Used deprecated FindBugs config; considering
switching to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m
46s{color} | | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} || ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
50s{color} | | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
53s{color} | | {color:green} the patch passed with JDK
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
53s{color} | | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
44s{color} | | {color:green} the patch passed with JDK Private
Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
44s{color} | | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} blanks {color} | {color:green} 0m
0s{color} | | {color:green} The patch has no blanks issues. {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
29s{color} | | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
46s{color} | | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
17m 49s{color} | | {color:green} patch has no errors when building and testing
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
36s{color} | | {color:green} the patch passed with JDK
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
32s{color} | | {color:green} the patch passed with JDK Private
Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m
50s{color} | | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} || ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 95m
15s{color} | | {color:green} hadoop-yarn-server-resourcemanager in the patch
passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
30s{color} | | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}166m 55s{color} |
| {color:black}{color} |
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|| Subsystem || Report/Notes ||
| Docker | ClientAPI=1.40 ServerAPI=1.40 base:
https://ci-hadoop.apache.org/job/PreCommit-YARN-Build/244/artifact/out/Dockerfile
|
| JIRA Issue | YARN-8737 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12937848/YARN-8737.001.patch |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite
unit shadedclient findbugs checkstyle |
| uname | Linux 53ba3d0d5e36 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9
23:41:39 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | personality/hadoop.sh |
| git revision | trunk / a2e7a073f03f682d6716ed59c60533be09841784 |
| Default Java | Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 |
| Multi-JDK versions |
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1
/usr/lib/jvm/java-8-openjdk-amd64:Private
Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 |
| Test Results |
https://ci-hadoop.apache.org/job/PreCommit-YARN-Build/244/testReport/ |
| Max. process+thread count | 829 (vs. ulimit of 5500) |
| modules | C:
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
U:
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
|
| Console output |
https://ci-hadoop.apache.org/job/PreCommit-YARN-Build/244/console |
| versions | git=2.17.1 maven=3.6.0 findbugs=4.1.3 |
| Powered by | Apache Yetus 0.13.0-SNAPSHOT https://yetus.apache.org |
This message was automatically generated.
> Race condition in ParentQueue when reinitializing and sorting child queues in
> the meanwhile
> -------------------------------------------------------------------------------------------
>
> Key: YARN-8737
> URL: https://issues.apache.org/jira/browse/YARN-8737
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacityscheduler
> Affects Versions: 3.3.0, 2.9.3, 3.2.2, 3.1.4
> Reporter: Tao Yang
> Assignee: Tao Yang
> Priority: Critical
> Attachments: YARN-8737.001.patch
>
>
> Administrator raised a update for queues through REST API, in RM parent queue
> is refreshing child queues through calling ParentQueue#reinitialize,
> meanwhile, async-schedule threads is sorting child queues when calling
> ParentQueue#sortAndGetChildrenAllocationIterator. Race condition may happen
> and throw exception as follow because TimSort does not handle the concurrent
> modification of objects it is sorting:
> {noformat}
> 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.mergeCollapse(TimSort.java:441)
> at java.util.TimSort.sort(TimSort.java:245)
> 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.capacity.policy.PriorityUtilizationQueueOrderingPolicy.getAssignmentIterator(PriorityUtilizationQueueOrderingPolicy.java:291)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue.sortAndGetChildrenAllocationIterator(ParentQueue.java:804)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue.assignContainersToChildQueues(ParentQueue.java:817)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue.assignContainers(ParentQueue.java:636)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.allocateOrReserveNewContainers(CapacityScheduler.java:2494)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.allocateOrReserveNewContainers(CapacityScheduler.java:2431)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.allocateContainersOnMultiNodes(CapacityScheduler.java:2588)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.allocateContainersToNode(CapacityScheduler.java:2676)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.scheduleBasedOnNodeLabels(CapacityScheduler.java:927)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler$AsyncScheduleThread.run(CapacityScheduler.java:962)
> {noformat}
> I think we can add read-lock for
> ParentQueue#sortAndGetChildrenAllocationIterator to solve this problem, the
> write-lock will be hold when updating child queues in
> ParentQueue#reinitialize.
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