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https://issues.apache.org/jira/browse/KAFKA-10616?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17217258#comment-17217258
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A. Sophie Blee-Goldman commented on KAFKA-10616:
------------------------------------------------
I spoke with [~guozhang] earlier and he said he already has a fix for this
that he had to implement in some other work when he ran into the same issue.
He's just going to cherrypick it into a new PR for this – sorry, forgot to
assign the ticket to him
> StreamThread killed by "IllegalStateException: The processor is already
> closed"
> -------------------------------------------------------------------------------
>
> Key: KAFKA-10616
> URL: https://issues.apache.org/jira/browse/KAFKA-10616
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Reporter: A. Sophie Blee-Goldman
> Priority: Blocker
> Fix For: 2.7.0
>
>
> Application is hitting "java.lang.IllegalStateException: The processor is
> already closed". Over the course of about a day, this exception killed 21/100
> of the queries (StreamThreads). The (slightly trimmed) stacktrace:
>
> {code:java}
> java.lang.RuntimeException: Caught an exception while closing caching window
> store for store Aggregate-Aggregate-Materialize at
> org.apache.kafka.streams.state.internals.ExceptionUtils.throwSuppressed(ExceptionUtils.java:39)
> at
> org.apache.kafka.streams.state.internals.CachingWindowStore.close(CachingWindowStore.java:432)
> at
> org.apache.kafka.streams.processor.internals.ProcessorStateManager.close(ProcessorStateManager.java:527)
> at
> org.apache.kafka.streams.processor.internals.StreamTask.closeDirty(StreamTask.java:499)
> at
> org.apache.kafka.streams.processor.internals.TaskManager.handleLostAll(TaskManager.java:626)
> … Caused by: java.lang.IllegalStateException: The processor is already
> closed at
> org.apache.kafka.streams.processor.internals.ProcessorNode.throwIfClosed(ProcessorNode.java:172)
> at
> org.apache.kafka.streams.processor.internals.ProcessorNode.process(ProcessorNode.java:178)
> at
> org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forwardInternal(ProcessorContextImpl.java:273)
> at
> org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(ProcessorContextImpl.java:252)
> at
> org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(ProcessorContextImpl.java:214)
> at
> org.apache.kafka.streams.kstream.internals.TimestampedCacheFlushListener.apply(TimestampedCacheFlushListener.java:45)
> at
> org.apache.kafka.streams.kstream.internals.TimestampedCacheFlushListener.apply(TimestampedCacheFlushListener.java:28)
> at
> org.apache.kafka.streams.state.internals.MeteredWindowStore.lambda$setFlushListener$1(MeteredWindowStore.java:110)
> at
> org.apache.kafka.streams.state.internals.CachingWindowStore.putAndMaybeForward(CachingWindowStore.java:118)
> at
> org.apache.kafka.streams.state.internals.CachingWindowStore.lambda$initInternal$0(CachingWindowStore.java:93)
> at
> org.apache.kafka.streams.state.internals.NamedCache.flush(NamedCache.java:151)
> at
> org.apache.kafka.streams.state.internals.NamedCache.flush(NamedCache.java:109)
> at
> org.apache.kafka.streams.state.internals.ThreadCache.flush(ThreadCache.java:116)
> at
> org.apache.kafka.streams.state.internals.CachingWindowStore.lambda$close$1(CachingWindowStore.java:427)
> at
> org.apache.kafka.streams.state.internals.ExceptionUtils.executeAll(ExceptionUtils.java:28)
> at
> org.apache.kafka.streams.state.internals.CachingWindowStore.close(CachingWindowStore.java:426)
> {code}
>
> I'm guessing we close the topology before closing the state states, so
> records that get flushed during the caching store's close() will run into an
> already-closed processor. During a clean close we should always flush before
> closing anything (during prepareCommit()), but since this was a
> handleLostAll() we would just skip right to suspend() and close the topology.
> Presumably the right thing to do here is to flush the caches before closing
> anything during a dirty close.
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