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https://issues.apache.org/jira/browse/YARN-11191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17841541#comment-17841541
]
ASF GitHub Bot commented on YARN-11191:
---------------------------------------
hadoop-yetus commented on PR #6768:
URL: https://github.com/apache/hadoop/pull/6768#issuecomment-2081187638
:confetti_ball: **+1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 6m 57s | | 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. |
|||| _ branch-3.4 Compile Tests _ |
| +1 :green_heart: | mvninstall | 32m 44s | | branch-3.4 passed |
| +1 :green_heart: | compile | 0m 36s | | branch-3.4 passed with JDK
Ubuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1 |
| +1 :green_heart: | compile | 0m 30s | | branch-3.4 passed with JDK
Private Build-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06 |
| +1 :green_heart: | checkstyle | 0m 31s | | branch-3.4 passed |
| +1 :green_heart: | mvnsite | 0m 34s | | branch-3.4 passed |
| +1 :green_heart: | javadoc | 0m 37s | | branch-3.4 passed with JDK
Ubuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1 |
| +1 :green_heart: | javadoc | 0m 29s | | branch-3.4 passed with JDK
Private Build-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06 |
| +1 :green_heart: | spotbugs | 1m 16s | | branch-3.4 passed |
| +1 :green_heart: | shadedclient | 20m 32s | | branch has no errors
when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 0m 27s | | the patch passed |
| +1 :green_heart: | compile | 0m 28s | | the patch passed with JDK
Ubuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1 |
| +1 :green_heart: | javac | 0m 28s | | the patch passed |
| +1 :green_heart: | compile | 0m 28s | | the patch passed with JDK
Private Build-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06 |
| +1 :green_heart: | javac | 0m 28s | | the patch passed |
| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks
issues. |
| +1 :green_heart: | checkstyle | 0m 24s | | the patch passed |
| +1 :green_heart: | mvnsite | 0m 28s | | the patch passed |
| +1 :green_heart: | javadoc | 0m 25s | | the patch passed with JDK
Ubuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1 |
| +1 :green_heart: | javadoc | 0m 28s | | the patch passed with JDK
Private Build-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06 |
| +1 :green_heart: | spotbugs | 1m 9s | | the patch passed |
| +1 :green_heart: | shadedclient | 20m 24s | | patch has no errors
when building and testing our client artifacts. |
|||| _ Other Tests _ |
| +1 :green_heart: | unit | 87m 33s | |
hadoop-yarn-server-resourcemanager in the patch passed. |
| +1 :green_heart: | asflicense | 0m 26s | | The patch does not
generate ASF License warnings. |
| | | 179m 4s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.45 ServerAPI=1.45 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6768/3/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/6768 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets |
| uname | Linux 10200f517789 5.15.0-94-generic #104-Ubuntu SMP Tue Jan 9
15:25:40 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
| git revision | branch-3.4 / 31f1424fcd7011fdd78d507e9482cffee9bcd09b |
| Default Java | Private Build-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06 |
| Multi-JDK versions |
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1
/usr/lib/jvm/java-8-openjdk-amd64:Private
Build-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06 |
| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6768/3/testReport/ |
| Max. process+thread count | 950 (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-6768/3/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
> Assignee: Tamas Domok
> 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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