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https://issues.apache.org/jira/browse/CASSANDRA-16685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17350951#comment-17350951
]
Berenguer Blasi commented on CASSANDRA-16685:
---------------------------------------------
Managed to repro with the {{RepeatableRunner}} locally on 500 iterations.
Basically there is a small window where the task signals completion on a count
down latch but the pool executor is still tidying up the environment. Hence a
new submission is rejected. The fix is to wait for the pool to be ready to
accept new tasks.
> Flaky ActiveRepairServiceTest.testRejectWhenPoolFullStrategy
> ------------------------------------------------------------
>
> Key: CASSANDRA-16685
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16685
> Project: Cassandra
> Issue Type: Bug
> Components: Test/unit
> Reporter: Berenguer Blasi
> Assignee: Berenguer Blasi
> Priority: Normal
> Fix For: 4.0-rc2, 4.0, 4.x
>
>
> Flaky
> [ActiveRepairServiceTest.testRejectWhenPoolFullStrategy|https://ci-cassandra.apache.org/job/Cassandra-4.0/50/testReport/junit/org.apache.cassandra.service/ActiveRepairServiceTest/testRejectWhenPoolFullStrategy_compression/]
> {noformat}
> Error Message
> Task java.util.concurrent.FutureTask@63553e9f[Not completed, task =
> java.util.concurrent.Executors$RunnableAdapter@52cb52bd[Wrapped task =
> org.apache.cassandra.service.ActiveRepairServiceTest$Task@1d1c37d5]] rejected
> from
> org.apache.cassandra.concurrent.JMXEnabledThreadPoolExecutor@218df7d6[Running,
> pool size = 2, active threads = 2, queued tasks = 0, completed tasks = 0]
> Stacktrace
> java.util.concurrent.RejectedExecutionException: Task
> java.util.concurrent.FutureTask@63553e9f[Not completed, task =
> java.util.concurrent.Executors$RunnableAdapter@52cb52bd[Wrapped task =
> org.apache.cassandra.service.ActiveRepairServiceTest$Task@1d1c37d5]] rejected
> from
> org.apache.cassandra.concurrent.JMXEnabledThreadPoolExecutor@218df7d6[Running,
> pool size = 2, active threads = 2, queued tasks = 0, completed tasks = 0]
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2055)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:825)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1355)
> at
> org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor.execute(DebuggableThreadPoolExecutor.java:176)
> at
> java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:118)
> at
> org.apache.cassandra.service.ActiveRepairServiceTest.testRejectWhenPoolFullStrategy(ActiveRepairServiceTest.java:380)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> Standard Output
> INFO [main] 2021-05-18 22:04:31,694 YamlConfigurationLoader.java:93 -
> Configuration location:
> file:////home/cassandra/cassandra/build/test/cassandra.compressed.yaml
> DEBUG [main] 2021-05-18 22:04:31,698 YamlConfigurationLoader.java:112 -
> Loading settings from
> file:////home/cassandra/cassandra/build/test/cassandra.compressed.yaml
> DEBUG [main] 2021-05-18 22:04:31,807 InternalLoggerFactory.java:63 - Using
> SLF4J as the default logging framework
> DEBUG [main] 2021-05-18 22:04:31,827 PlatformDependent0
> ...[truncated 95289 chars]...
> andra/build/test/cassandra/data/system/local-7ad54392bcdd35a684174e047860b377/nb_txn_flush_08e70270-b825-11eb-a393-871312b17b94.log
>
> DEBUG [MemtableFlushWriter:1] 2021-05-18 22:04:36,792
> ColumnFamilyStore.java:1197 - Flushed to
> [BigTableReader(path='/home/cassandra/cassandra/build/test/cassandra/data/system/local-7ad54392bcdd35a684174e047860b377/nb-15-big-Data.db')]
> (1 sstables, 4.944KiB), biggest 4.944KiB, smallest 4.944KiB
> DEBUG [main] 2021-05-18 22:04:36,795 StorageService.java:1619 - NORMAL
> {noformat}
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