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Posted to notifications@accumulo.apache.org by "keith-turner (via GitHub)" <gi...@apache.org> on 2024/01/09 18:02:56 UTC
[I] Concurrent modification exception in manager [accumulo]
keith-turner opened a new issue, #4144:
URL: https://github.com/apache/accumulo/issues/4144
Seeing the following exception in the manager logs when running a version of Accumulo built from the elasticity branch.
```
024-01-09T17:28:25,129 [threads.ThreadPools] ERROR: Non-critical scheduled background task failed
java.util.concurrent.ExecutionException: java.util.ConcurrentModificationException
at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:?]
at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191) ~[?:?]
at org.apache.accumulo.core.util.threads.ThreadPools.checkTaskFailed(ThreadPools.java:125) ~[accumulo-core-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
at org.apache.accumulo.core.util.threads.ThreadPools.lambda$static$0(ThreadPools.java:95) ~[accumulo-core-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
at java.base/java.lang.Iterable.forEach(Iterable.java:75) ~[?:?]
at org.apache.accumulo.core.util.threads.ThreadPools.lambda$static$1(ThreadPools.java:92) ~[accumulo-core-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
at org.apache.accumulo.core.trace.TraceWrappedRunnable.run(TraceWrappedRunnable.java:52) ~[accumulo-core-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[?:?]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[?:?]
at org.apache.accumulo.core.trace.TraceWrappedRunnable.run(TraceWrappedRunnable.java:52) ~[accumulo-core-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
at java.base/java.lang.Thread.run(Thread.java:829) [?:?]
Caused by: java.util.ConcurrentModificationException
at java.base/java.util.HashMap$HashIterator.nextNode(HashMap.java:1511) ~[?:?]
at java.base/java.util.HashMap$KeyIterator.next(HashMap.java:1534) ~[?:?]
at com.google.common.collect.Sets$3$1.computeNext(Sets.java:907) ~[guava-33.0.0-jre.jar:?]
at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:145) ~[guava-33.0.0-jre.jar:?]
at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:140) ~[guava-33.0.0-jre.jar:?]
at java.base/java.lang.Iterable.forEach(Iterable.java:74) ~[?:?]
at org.apache.accumulo.manager.compaction.coordinator.QueueMetrics.update(QueueMetrics.java:142) ~[accumulo-manager-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
at org.apache.accumulo.core.trace.TraceWrappedRunnable.run(TraceWrappedRunnable.java:52) ~[accumulo-core-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) ~[?:?]
at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305) ~[?:?]
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305) ~[?:?]
... 4 more
```
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Re: [I] Concurrent modification exception in manager [accumulo]
Posted by "dlmarion (via GitHub)" <gi...@apache.org>.
dlmarion closed issue #4144: Concurrent modification exception in manager
URL: https://github.com/apache/accumulo/issues/4144
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