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https://issues.apache.org/jira/browse/FLINK-34427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18120054#comment-18120054
]
Martijn Visser commented on FLINK-34427:
----------------------------------------
Six more since 2026-09-25, now on all four branches:
https://github.com/apache/flink/actions/runs/36169063884/job/108189546502
(master, push 2026-09-25, JDK 17)
https://github.com/apache/flink/actions/runs/36251484841/job/108431829011
(master, push 2026-09-26, JDK 17)
https://github.com/apache/flink/actions/runs/36164513434/job/108172210002
(release-2.3, push 2026-09-25, JDK 17)
https://dev.azure.com/apache-flink/98463496-1af2-4620-8eab-a2ecc1a2e6fe/_build/results?buildId=79477&view=logs&j=77a9d8e1-d610-59b3-fc2a-4766541e0e33
(release-2.2, nightly 2026-09-27, test_cron_azure, JDK 17)
https://github.com/apache/flink/actions/runs/36210381095/job/108321430052
(release-1.20, nightly 2026-09-26, JDK 11)
https://github.com/apache/flink/actions/runs/36368770462/job/108769569950
(release-1.20, nightly 2026-09-28, AdaptiveScheduler, JDK 8)
Surefire names WorkerCounterTest, ExecutionGraphRestartTest, MemoryManagerTest
or no class at all. Every fork log has the same FATAL right after
testSlotAllocationAccordingToStrategyResult:
{code}
Test
org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedSlotManagerTest.testSlotAllocationAccordingToStrategyResult[testSlotAllocationAccordingToStrategyResult()]
successfully run.
15:34:16,248 [ pool-199-thread-1] ERROR
org.apache.flink.util.FatalExitExceptionHandler [] - FATAL: Thread
'pool-199-thread-1' produced an uncaught exception. Stopping the process...
java.util.concurrent.CompletionException:
java.util.concurrent.RejectedExecutionException: Task
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@c6dfea7[Not
completed, ...
at
java.base/java.util.concurrent.CompletableFuture.handleAsync(CompletableFuture.java:2350)
at
org.apache.flink.runtime.resourcemanager.slotmanager.DefaultSlotStatusSyncer.allocateSlot(DefaultSlotStatusSyncer.java:148)
at
org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedSlotManager.allocateSlotsAccordingTo(FineGrainedSlotManager.java:757)
at
org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedSlotManager.checkResourceRequirements(FineGrainedSlotManager.java:677)
{code}
That is ten of the 125 runs on these branches in the last seven days.
> FineGrainedSlotManagerTest fails fatally (exit code 239)
> --------------------------------------------------------
>
> Key: FLINK-34427
> URL: https://issues.apache.org/jira/browse/FLINK-34427
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Coordination
> Affects Versions: 1.19.0, 1.18.1, 1.20.6, 2.3.1, 2.4.0
> Reporter: Matthias Pohl
> Assignee: Sergey Nuyanzin
> Priority: Critical
> Labels: pull-request-available, test-stability
>
> https://github.com/apache/flink/actions/runs/7866453350/job/21460921911#step:10:8959
> {code}
> Error: 02:28:53 02:28:53.220 [ERROR] Process Exit Code: 239
> Error: 02:28:53 02:28:53.220 [ERROR] Crashed tests:
> Error: 02:28:53 02:28:53.220 [ERROR]
> org.apache.flink.runtime.resourcemanager.ResourceManagerTaskExecutorTest
> Error: 02:28:53 02:28:53.220 [ERROR]
> org.apache.maven.surefire.booter.SurefireBooterForkException:
> ExecutionException The forked VM terminated without properly saying goodbye.
> VM crash or System.exit called?
> Error: 02:28:53 02:28:53.220 [ERROR] Command was /bin/sh -c cd
> '/root/flink/flink-runtime' &&
> '/usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java' '-XX:+UseG1GC' '-Xms256m'
> '-XX:+IgnoreUnrecognizedVMOptions'
> '--add-opens=java.base/java.util=ALL-UNNAMED'
> '--add-opens=java.base/java.lang=ALL-UNNAMED'
> '--add-opens=java.base/java.net=ALL-UNNAMED'
> '--add-opens=java.base/java.io=ALL-UNNAMED'
> '--add-opens=java.base/java.util.concurrent=ALL-UNNAMED' '-Xmx768m' '-jar'
> '/root/flink/flink-runtime/target/surefire/surefirebooter-20240212022332296_94.jar'
> '/root/flink/flink-runtime/target/surefire'
> '2024-02-12T02-21-39_495-jvmRun3' 'surefire-20240212022332296_88tmp'
> 'surefire_26-20240212022332296_91tmp'
> Error: 02:28:53 02:28:53.220 [ERROR] Error occurred in starting fork, check
> output in log
> Error: 02:28:53 02:28:53.220 [ERROR] Process Exit Code: 239
> Error: 02:28:53 02:28:53.220 [ERROR] Crashed tests:
> Error: 02:28:53 02:28:53.221 [ERROR]
> org.apache.flink.runtime.resourcemanager.ResourceManagerTaskExecutorTest
> Error: 02:28:53 02:28:53.221 [ERROR] at
> org.apache.maven.plugin.surefire.booterclient.ForkStarter.awaitResultsDone(ForkStarter.java:456)
> [...]
> {code}
> The fatal error is triggered most likely within the
> {{FineGrainedSlotManagerTest}}:
> {code}
> 02:26:39,362 [ pool-643-thread-1] ERROR
> org.apache.flink.util.FatalExitExceptionHandler [] - FATAL:
> Thread 'pool-643-thread-1' produced an uncaught exception. Stopping the
> process...
> java.util.concurrent.CompletionException:
> java.util.concurrent.RejectedExecutionException: Task
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@4bbc0b10
> rejected from
> java.util.concurrent.ScheduledThreadPoolExecutor@7a45cd9a[Shutting down, pool
> size = 1, active threads = 1, queued tasks = 1, completed tasks = 194]
> at
> java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:273)
> ~[?:1.8.0_392]
> at
> java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:280)
> ~[?:1.8.0_392]
> at
> java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:838)
> ~[?:1.8.0_392]
> at
> java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:811)
> ~[?:1.8.0_392]
> at
> java.util.concurrent.CompletableFuture.uniHandleStage(CompletableFuture.java:851)
> ~[?:1.8.0_392]
> at
> java.util.concurrent.CompletableFuture.handleAsync(CompletableFuture.java:2178)
> ~[?:1.8.0_392]
> at
> org.apache.flink.runtime.resourcemanager.slotmanager.DefaultSlotStatusSyncer.allocateSlot(DefaultSlotStatusSyncer.java:138)
> ~[classes/:?]
> at
> org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedSlotManager.allocateSlotsAccordingTo(FineGrainedSlotManager.java:722)
> ~[classes/:?]
> at
> org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedSlotManager.checkResourceRequirements(FineGrainedSlotManager.java:645)
> ~[classes/:?]
> at
> org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedSlotManager.lambda$null$12(FineGrainedSlotManager.java:603)
> ~[classes/:?]
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> [?:1.8.0_392]
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> [?:1.8.0_392]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
> [?:1.8.0_392]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> [?:1.8.0_392]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> [?:1.8.0_392]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> [?:1.8.0_392]
> at java.lang.Thread.run(Thread.java:750) [?:1.8.0_392]
> Caused by: java.util.concurrent.RejectedExecutionException: Task
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@4bbc0b10
> rejected from
> java.util.concurrent.ScheduledThreadPoolExecutor@7a45cd9a[Shutting down, pool
> size = 1, active threads = 1, queued tasks = 1, completed tasks = 194]
> at
> java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2063)
> ~[?:1.8.0_392]
> at
> java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:830)
> ~[?:1.8.0_392]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor.delayedExecute(ScheduledThreadPoolExecutor.java:326)
> ~[?:1.8.0_392]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor.schedule(ScheduledThreadPoolExecutor.java:533)
> ~[?:1.8.0_392]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor.execute(ScheduledThreadPoolExecutor.java:622)
> ~[?:1.8.0_392]
> at
> java.util.concurrent.Executors$DelegatedExecutorService.execute(Executors.java:668)
> ~[?:1.8.0_392]
> at
> java.util.concurrent.CompletableFuture$UniCompletion.claim(CompletableFuture.java:543)
> ~[?:1.8.0_392]
> at
> java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:826)
> ~[?:1.8.0_392]
> ... 14 more
> {code}
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