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https://issues.apache.org/jira/browse/KAFKA-7870?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Chakhsu Lau updated KAFKA-7870:
-------------------------------
Priority: Blocker (was: Critical)
> Error sending fetch request (sessionId=1578860481, epoch=INITIAL) to node 2:
> java.io.IOException: Connection to 2 was disconnected before the response was
> read.
> ----------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: KAFKA-7870
> URL: https://issues.apache.org/jira/browse/KAFKA-7870
> Project: Kafka
> Issue Type: Bug
> Components: clients
> Affects Versions: 2.1.0
> Reporter: Chakhsu Lau
> Priority: Blocker
>
> We build a kafka cluster with 5 nodes. But one of nodes suddenly stopped
> running during the run. And it happened twice in the same node. Here is the
> log and is this a bug in kafka ?
> {code:java}
> [2019-01-25 12:57:14,686] INFO [ReplicaFetcher replicaId=3, leaderId=2,
> fetcherId=0] Error sending fetch request (sessionId=1578860481,
> epoch=INITIAL) to node 2: java.io.IOException: Connection to 2 was
> disconnected before the response was read.
> (org.apache.kafka.clients.FetchSessionHandler)
> [2019-01-25 12:57:14,687] WARN [ReplicaFetcher replicaId=3, leaderId=2,
> fetcherId=0] Error in response for fetch request (type=FetchRequest,
> replicaId=3, maxWait=500, minBytes=1, maxBytes=10485760,
> fetchData={api-result-bi-heatmap-8=(offset=0, logStartOffset=0,
> maxBytes=1048576, currentLeaderEpoch=Optional[4]),
> api-result-bi-heatmap-save-12=(offset=0, logStartOffset=0, maxBytes=1048576,
> currentLeaderEpoch=Optional[4]), api-result-bi-heatmap-task-2=(offset=2,
> logStartOffset=0, maxBytes=1048576, currentLeaderEpoch=Optional[4]),
> api-result-bi-flow-39=(offset=1883206, logStartOffset=0, maxBytes=1048576,
> currentLeaderEpoch=Optional[4]), __consumer_offsets-47=(offset=349437,
> logStartOffset=0, maxBytes=1048576, currentLeaderEpoch=Optional[4]),
> api-result-bi-heatmap-track-6=(offset=1039889, logStartOffset=0,
> maxBytes=1048576, currentLeaderEpoch=Optional[4]),
> api-result-bi-heatmap-task-17=(offset=0, logStartOffset=0, maxBytes=1048576,
> currentLeaderEpoch=Optional[4]), __consumer_offsets-2=(offset=0,
> logStartOffset=0, maxBytes=1048576, currentLeaderEpoch=Optional[4]),
> api-result-bi-heatmap-aggs-19=(offset=1255056, logStartOffset=0,
> maxBytes=1048576, currentLeaderEpoch=Optional[4])},
> isolationLevel=READ_UNCOMMITTED, toForget=, metadata=(sessionId=1578860481,
> epoch=INITIAL)) (kafka.server.ReplicaFetcherThread)
> java.io.IOException: Connection to 2 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}
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