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https://issues.apache.org/jira/browse/FLINK-35315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18118772#comment-18118772
]
Martijn Visser commented on FLINK-35315:
----------------------------------------
Still happening, master push 2026-09-19, test_ci core, JDK 17:
https://dev.azure.com/apache-flink/98463496-1af2-4620-8eab-a2ecc1a2e6fe/_build/results?buildId=79255&view=logs&j=0da23115-68bb-5dcd-192c-bd4c8adebde1
The fork produced no output for 900 seconds after starting
MemoryManagerConcurrentModReleaseTest and was killed. Both threads were
running, each with about 1150 seconds of CPU:
{code}
"ForkJoinPool-175-worker-1" #4097 daemon prio=5 os_prio=0 cpu=1151251.38ms
elapsed=1157.92s ... runnable
java.lang.Thread.State: RUNNABLE
at
java.util.concurrent.ConcurrentHashMap.computeIfPresent([email protected]/ConcurrentHashMap.java:1828)
- locked <0x00000000d4c747f0> (a
java.util.concurrent.ConcurrentHashMap$Node)
at
org.apache.flink.runtime.memory.MemoryManager.releaseSegmentsForOwnerUntilNextOwner(MemoryManager.java:343)
at
org.apache.flink.runtime.memory.MemoryManager.release(MemoryManager.java:327)
at
org.apache.flink.runtime.memory.MemoryManagerConcurrentModReleaseTest.testConcurrentModificationWhileReleasing(MemoryManagerConcurrentModReleaseTest.java:72)
"Thread-218" #4098 daemon prio=5 os_prio=0 cpu=1151958.20ms elapsed=1157.90s
... runnable
java.lang.Thread.State: RUNNABLE
at
org.apache.flink.runtime.memory.MemoryManagerConcurrentModReleaseTest$Modifier.run(MemoryManagerConcurrentModReleaseTest.java:102)
{code}
> MemoryManagerConcurrentModReleaseTest executes more than 15 minutes
> -------------------------------------------------------------------
>
> Key: FLINK-35315
> URL: https://issues.apache.org/jira/browse/FLINK-35315
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Network, Tests
> Affects Versions: 2.1.0
> Reporter: Rui Fan
> Priority: Critical
> Labels: test-stability
> Fix For: 2.4.0
>
> Attachments: image-2024-05-09-11-53-10-037.png
>
>
> [https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=59395&view=results]
>
> It seems
> MemoryManagerConcurrentModReleaseTest.testConcurrentModificationWhileReleasing
> executes more than 15 minutes.
> The root cause may be {color:#e1dfdd}ConcurrentModificationException{color}
>
> [https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=59395&view=logs&j=0da23115-68bb-5dcd-192c-bd4c8adebde1&t=24c3384f-1bcb-57b3-224f-51bf973bbee8&l=10060]
>
> !image-2024-05-09-11-53-10-037.png!
>
>
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