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https://issues.apache.org/jira/browse/KAFKA-7757?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jeff Nadler updated KAFKA-7757:
-------------------------------
Attachment: Screen Shot 2019-01-03 at 12.20.38 PM.png
> Too many open files after java.io.IOException: Connection to n was
> disconnected before the response was read
> ------------------------------------------------------------------------------------------------------------
>
> Key: KAFKA-7757
> URL: https://issues.apache.org/jira/browse/KAFKA-7757
> Project: Kafka
> Issue Type: Bug
> Components: core
> Affects Versions: 2.1.0
> Reporter: Pedro Gontijo
> Priority: Major
> Attachments: Screen Shot 2019-01-03 at 12.20.38 PM.png,
> kafka-allocated-file-handles.png, server.properties, td1.txt, td2.txt, td3.txt
>
>
> We upgraded from 0.10.2.2 to 2.1.0 (a cluster with 3 brokers)
> After a while (hours) 2 brokers start to throw:
> {code:java}
> java.io.IOException: Connection to NN was disconnected before the response
> was read
> at
> org.apache.kafka.clients.NetworkClientUtils.sendAndReceive(NetworkClientUtils.java:97)
> at
> kafka.server.ReplicaFetcherBlockingSend.sendRequest(ReplicaFetcherBlockingSend.scala:97)
> at
> kafka.server.ReplicaFetcherThread.fetchFromLeader(ReplicaFetcherThread.scala:190)
> at
> kafka.server.AbstractFetcherThread.kafka$server$AbstractFetcherThread$$processFetchRequest(AbstractFetcherThread.scala:241)
> at
> kafka.server.AbstractFetcherThread$$anonfun$maybeFetch$1.apply(AbstractFetcherThread.scala:130)
> at
> kafka.server.AbstractFetcherThread$$anonfun$maybeFetch$1.apply(AbstractFetcherThread.scala:129)
> at scala.Option.foreach(Option.scala:257)
> at
> kafka.server.AbstractFetcherThread.maybeFetch(AbstractFetcherThread.scala:129)
> at kafka.server.AbstractFetcherThread.doWork(AbstractFetcherThread.scala:111)
> at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:82)
> {code}
> File descriptors start to pile up and if I do not restart it throws "Too many
> open files" and crashes.
> {code:java}
> ERROR Error while accepting connection (kafka.network.Acceptor)
> java.io.IOException: Too many open files in system
> at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
> at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:422)
> at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:250)
> at kafka.network.Acceptor.accept(SocketServer.scala:460)
> at kafka.network.Acceptor.run(SocketServer.scala:403)
> at java.lang.Thread.run(Thread.java:748)
> {code}
>
> After some hours the issue happens again... It has happened with all
> brokers, so it is not something specific to an instance.
>
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