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https://issues.apache.org/jira/browse/YARN-11191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17605761#comment-17605761
]
ASF GitHub Bot commented on YARN-11191:
---------------------------------------
hadoop-yetus commented on PR #4726:
URL: https://github.com/apache/hadoop/pull/4726#issuecomment-1249182002
:confetti_ball: **+1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 0m 42s | | Docker mode activated. |
|||| _ Prechecks _ |
| +1 :green_heart: | dupname | 0m 0s | | No case conflicting files
found. |
| +0 :ok: | codespell | 0m 1s | | codespell was not available. |
| +0 :ok: | detsecrets | 0m 1s | | detect-secrets was not available.
|
| +1 :green_heart: | @author | 0m 0s | | The patch does not contain
any @author tags. |
| +1 :green_heart: | test4tests | 0m 0s | | The patch appears to
include 1 new or modified test files. |
|||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 37m 54s | | trunk passed |
| +1 :green_heart: | compile | 1m 10s | | trunk passed with JDK
Ubuntu-11.0.16+8-post-Ubuntu-0ubuntu120.04 |
| +1 :green_heart: | compile | 1m 6s | | trunk passed with JDK
Private Build-1.8.0_342-8u342-b07-0ubuntu1~20.04-b07 |
| +1 :green_heart: | checkstyle | 2m 4s | | trunk passed |
| +1 :green_heart: | mvnsite | 1m 18s | | trunk passed |
| +1 :green_heart: | javadoc | 1m 13s | | trunk passed with JDK
Ubuntu-11.0.16+8-post-Ubuntu-0ubuntu120.04 |
| +1 :green_heart: | javadoc | 0m 59s | | trunk passed with JDK
Private Build-1.8.0_342-8u342-b07-0ubuntu1~20.04-b07 |
| +1 :green_heart: | spotbugs | 2m 22s | | trunk passed |
| +1 :green_heart: | shadedclient | 23m 46s | | branch has no errors
when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 0m 56s | | the patch passed |
| +1 :green_heart: | compile | 1m 7s | | the patch passed with JDK
Ubuntu-11.0.16+8-post-Ubuntu-0ubuntu120.04 |
| +1 :green_heart: | javac | 1m 7s | | the patch passed |
| +1 :green_heart: | compile | 0m 57s | | the patch passed with JDK
Private Build-1.8.0_342-8u342-b07-0ubuntu1~20.04-b07 |
| +1 :green_heart: | javac | 0m 57s | | the patch passed |
| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks
issues. |
| -0 :warning: | checkstyle | 0m 44s |
[/results-checkstyle-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4726/3/artifact/out/results-checkstyle-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt)
|
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager:
The patch generated 8 new + 138 unchanged - 0 fixed = 146 total (was 138) |
| +1 :green_heart: | mvnsite | 1m 4s | | the patch passed |
| +1 :green_heart: | javadoc | 0m 45s | | the patch passed with JDK
Ubuntu-11.0.16+8-post-Ubuntu-0ubuntu120.04 |
| +1 :green_heart: | javadoc | 0m 44s | | the patch passed with JDK
Private Build-1.8.0_342-8u342-b07-0ubuntu1~20.04-b07 |
| +1 :green_heart: | spotbugs | 2m 2s | | the patch passed |
| +1 :green_heart: | shadedclient | 21m 36s | | patch has no errors
when building and testing our client artifacts. |
|||| _ Other Tests _ |
| +1 :green_heart: | unit | 99m 12s | |
hadoop-yarn-server-resourcemanager in the patch passed. |
| +1 :green_heart: | asflicense | 0m 43s | | The patch does not
generate ASF License warnings. |
| | | 201m 55s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.41 ServerAPI=1.41 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4726/3/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/4726 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets |
| uname | Linux 4e2b917b27d3 4.15.0-191-generic #202-Ubuntu SMP Thu Aug 4
01:49:29 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
| git revision | trunk / 281c169aca12bd5e932295c6eb78e69ab9d28e86 |
| Default Java | Private Build-1.8.0_342-8u342-b07-0ubuntu1~20.04-b07 |
| Multi-JDK versions |
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.16+8-post-Ubuntu-0ubuntu120.04
/usr/lib/jvm/java-8-openjdk-amd64:Private
Build-1.8.0_342-8u342-b07-0ubuntu1~20.04-b07 |
| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4726/3/testReport/ |
| Max. process+thread count | 964 (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/hadoop-multibranch/job/PR-4726/3/console |
| versions | git=2.25.1 maven=3.6.3 spotbugs=4.2.2 |
| Powered by | Apache Yetus 0.14.0 https://yetus.apache.org |
This message was automatically generated.
> Global Scheduler refreshQueue cause deadLock
> ---------------------------------------------
>
> Key: YARN-11191
> URL: https://issues.apache.org/jira/browse/YARN-11191
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacity scheduler
> Affects Versions: 2.9.0, 3.0.0, 3.1.0, 2.10.0, 3.2.0, 3.3.0
> Reporter: ben yang
> Priority: Major
> Labels: pull-request-available
> Attachments: 1.jstack, Lock holding status.png, YARN-11191.001.patch
>
>
> This is a potential bug may impact all open premmption cluster.In our
> current version with preemption enabled, the capacityScheduler will call the
> refreshQueue method of the PreemptionManager when it refreshQueue. This
> process hold the preemptionManager write lock and require csqueue read
> lock.Meanwhile,ParentQueue.canAssignToThisQueue will hold csqueue readLock
> and require PreemptionManager ReadLock.
> There is a possibility of deadlock at this time.Because readlock has one rule
> on unfair policy, when a lock is already occupied by a read lock and the
> first request in the lock competition queue is a write lock request,other
> read lock requests cann‘t acquire the lock.
> So the potential deadlock is:
> {code:java}
> CapacityScheduler.refreshQueue: hold: PremmptionManager.writeLock
> require: csqueue.readLock
> CapacityScheduler.schedule: hold: csqueue.readLock
> require: PremmptionManager.readLock
> other thread(completeContainer,release Resource,etc.): require:
> csqueue.writeLock
> {code}
> The jstack logs at the time were as follows
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