xianjingfeng commented on PR #1931:
URL:
https://github.com/apache/incubator-uniffle/pull/1931#issuecomment-2270265330
> This may not be the only reason. I also encountered this problem with
version 0.9.0.
My mistake. Not the same, but similar.
```
[2024-06-19 21:10:56.200] [FallBackFlushEventThreadPool-3] [ERROR]
ShuffleDataFlushEvent.doCleanup - Errors doing cleanup callback. event:
ShuffleDataFlushEvent: eventId=25200, a
ppId=application_1710412492003_36511244_1718802346131, shuffleId=0,
startPartition=183, endPartition=183, retryTimes=11,
underStorage=HadoopStorage, isPended=true, ownedByHugePar
tition=false
io.netty.util.IllegalReferenceCountException: refCnt: 0, decrement: 1
at
io.netty.util.internal.ReferenceCountUpdater.toLiveRealRefCnt(ReferenceCountUpdater.java:83)
at
io.netty.util.internal.ReferenceCountUpdater.release(ReferenceCountUpdater.java:148)
at
io.netty.buffer.AbstractReferenceCountedByteBuf.release(AbstractReferenceCountedByteBuf.java:101)
at
org.apache.uniffle.server.buffer.SkipListShuffleBuffer.lambda$null$0(SkipListShuffleBuffer.java:83)
at java.lang.Iterable.forEach(Iterable.java:75)
at
org.apache.uniffle.server.buffer.SkipListShuffleBuffer.lambda$toFlushEvent$1(SkipListShuffleBuffer.java:83)
at
org.apache.uniffle.server.ShuffleDataFlushEvent.doCleanup(ShuffleDataFlushEvent.java:143)
at
org.apache.uniffle.server.DefaultFlushEventHandler.handleEventAndUpdateMetrics(DefaultFlushEventHandler.java:131)
at
org.apache.uniffle.server.DefaultFlushEventHandler.lambda$dispatchEvent$0(DefaultFlushEventHandler.java:219)
at
java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1626)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
```
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