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https://issues.apache.org/jira/browse/KAFKA-5587?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16087123#comment-16087123
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ASF GitHub Bot commented on KAFKA-5587:
---------------------------------------
GitHub user rajinisivaram opened a pull request:
https://github.com/apache/kafka/pull/3526
KAFKA-5587: Remove channel only after staged receives are delivered
When idle connections are closed, ensure that channels with staged receives
are retained in `closingChannels` until all staged receives are completed. Also
ensure that only one staged receive is completed in each poll, even when
channels are closed.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/rajinisivaram/kafka KAFKA-5587
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/kafka/pull/3526.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #3526
----
commit d6848a3b1dcf9cc73caf06b68bdc89570c396c81
Author: Rajini Sivaram <rajinisiva...@googlemail.com>
Date: 2017-07-14T08:36:22Z
KAFKA-5587: Remove channel only after staged receives are delivered
----
> Processor got uncaught exception: NullPointerException
> ------------------------------------------------------
>
> Key: KAFKA-5587
> URL: https://issues.apache.org/jira/browse/KAFKA-5587
> Project: Kafka
> Issue Type: Bug
> Components: core
> Affects Versions: 0.10.1.1
> Reporter: Dan
> Assignee: Rajini Sivaram
>
> [2017-07-12 21:56:39,964] ERROR Processor got uncaught exception.
> (kafka.network.Processor)
> java.lang.NullPointerException
> at
> kafka.network.Processor$$anonfun$processCompletedReceives$1.apply(SocketServer.scala:490)
> at
> kafka.network.Processor$$anonfun$processCompletedReceives$1.apply(SocketServer.scala:487)
> at scala.collection.Iterator$class.foreach(Iterator.scala:727)
> at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
> at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
> at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
> at
> kafka.network.Processor.processCompletedReceives(SocketServer.scala:487)
> at kafka.network.Processor.run(SocketServer.scala:417)
> at java.lang.Thread.run(Thread.java:745)
> Anyone knows the cause of this exception? What's the effect of it?
> When this exception occurred, the log also showed that the broker was
> frequently shrinking ISR to itself. Are these two things interrelated?
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