[
https://issues.apache.org/jira/browse/HDDS-11240?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
weiming updated HDDS-11240:
---------------------------
Description:
That will cause threads on the following stack trace to consume a lot of CPU:
at java.lang.ThreadLocal$ThreadLocalMap.expungeStaleEntry(ThreadLocal.java:638)
at java.lang.ThreadLocal$ThreadLocalMap.remove(ThreadLocal.java:520)
at java.lang.ThreadLocal$ThreadLocalMap.access$200(ThreadLocal.java:319)
at java.lang.ThreadLocal.remove(ThreadLocal.java:242)
at
java.util.concurrent.locks.ReentrantReadWriteLock$Sync.tryReleaseShared(ReentrantReadWriteLock.java:426)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.releaseShared(AbstractQueuedSynchronizer.java:1341)
at
java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.unlock(ReentrantReadWriteLock.java:881)
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was:
That will cause threads on the following stack trace to consume a lot of CPU:
at java.lang.ThreadLocal$ThreadLocalMap.expungeStaleEntry(ThreadLocal.java:638)
at java.lang.ThreadLocal$ThreadLocalMap.remove(ThreadLocal.java:520)
at java.lang.ThreadLocal$ThreadLocalMap.access$200(ThreadLocal.java:319)
at java.lang.ThreadLocal.remove(ThreadLocal.java:242)
at
java.util.concurrent.locks.ReentrantReadWriteLock$Sync.tryReleaseShared(ReentrantReadWriteLock.java:426)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.releaseShared(AbstractQueuedSynchronizer.java:1341)
at
java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.unlock(ReentrantReadWriteLock.java:881)
!image-2024-07-28-20-17-58-466.png!
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> High cpu usage on ReadWrite locks in JDK17
> ------------------------------------------
>
> Key: HDDS-11240
> URL: https://issues.apache.org/jira/browse/HDDS-11240
> Project: Apache Ozone
> Issue Type: Bug
> Affects Versions: 1.4.0
> Environment: JDK：
> openjdk 17.0.2 2022-01-18
> OpenJDK Runtime Environment (build 17.0.2+8-86)
> OpenJDK 64-Bit Server VM (build 17.0.2+8-86, mixed mode, sharing)
> Ozone:
> 1.4.0
>
> Reporter: weiming
> Priority: Major
> Attachments: flamegraph.profile.html,
> image-2024-07-28-20-17-58-466.png
>
>
> That will cause threads on the following stack trace to consume a lot of CPU:
> at
> java.lang.ThreadLocal$ThreadLocalMap.expungeStaleEntry(ThreadLocal.java:638)
> at java.lang.ThreadLocal$ThreadLocalMap.remove(ThreadLocal.java:520)
> at java.lang.ThreadLocal$ThreadLocalMap.access$200(ThreadLocal.java:319)
> at java.lang.ThreadLocal.remove(ThreadLocal.java:242)
> at
> java.util.concurrent.locks.ReentrantReadWriteLock$Sync.tryReleaseShared(ReentrantReadWriteLock.java:426)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.releaseShared(AbstractQueuedSynchronizer.java:1341)
> at
> java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.unlock(ReentrantReadWriteLock.java:881)
>
> [^flamegraph.profile.html]
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