[jira] [Resolved] (KAFKA-7508) Kafka broker anonymous disconnected from Zookeeper

["Jonathan Santilli (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-7508?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Santilli resolved KAFKA-7508.
--------------------------------------
    Resolution: Not A Problem

Closed since was requested by the reported.

Sathish agree to try JVM recommended parameters

> Kafka broker anonymous disconnected from Zookeeper
> --------------------------------------------------
>
>                 Key: KAFKA-7508
>                 URL: https://issues.apache.org/jira/browse/KAFKA-7508
>             Project: Kafka
>          Issue Type: Task
>          Components: admin, config
>            Reporter: Sathish Yanamala
>            Priority: Blocker
>
> Hello Team,
>  
> We are facing below Error , Kafka broker unable to connect Zookeeper , Please check and suggest is there any configuration changes required on Kafka Broker.
>  
>  ERROR:
> 2018-10-15 12:24:07,502 WARN kafka.network.Processor: Attempting to send response via channel for which there is no open connection, connection id -<Broker IP Address> -:9093--<Broker IP Address> -:47542-25929
> 2018-10-15 12:24:09,428 INFO kafka.coordinator.group.GroupCoordinator: [GroupCoordinator 3]: Group KMOffsetCache-xxxxxxx  with generation 9 is now empty (__consumer_offsets-22)
> 2018-10-15 12:24:09,428 INFO kafka.server.epoch.LeaderEpochFileCache: Updated PartitionLeaderEpoch. New: \{epoch:1262, offset:151}, Current: \{epoch:1261, offset144} for Partition: __consumer_offsets-22. Cache now contains 15 entries.
> {color:#d04437}*2018-10-15 12:24:10,905 ERROR kafka.utils.KafkaScheduler: Uncaught exception in scheduled task 'highwatermark-checkpoint'*{color}
> {color:#d04437}*java.lang.OutOfMemoryError: Java heap space*{color}
> {color:#d04437}        at{color} scala.collection.convert.DecorateAsScala$$Lambda$214/xxxxx.get$Lambda(Unknown Source)
>         at java.lang.invoke.LambdaForm$DMH/xxxxxxx.invokeStatic_LL_L(LambdaForm$DMH)
>         at java.lang.invoke.LambdaForm$MH/xxxxxx.linkToTargetMethod(LambdaForm$MH)
>         at scala.collection.convert.DecorateAsScala.collectionAsScalaIterableConverter(DecorateAsScala.scala:45)
>         at scala.collection.convert.DecorateAsScala.collectionAsScalaIterableConverter$(DecorateAsScala.scala:44)
>         at scala.collection.JavaConverters$.collectionAsScalaIterableConverter(JavaConverters.scala:73)
>         at kafka.utils.Pool.values(Pool.scala:85)
>         at kafka.server.ReplicaManager.nonOfflinePartitionsIterator(ReplicaManager.scala:397)
>         at kafka.server.ReplicaManager.checkpointHighWatermarks(ReplicaManager.scala:1340)
>         at kafka.server.ReplicaManager.$anonfun$startHighWaterMarksCheckPointThread$1(ReplicaManager.scala:253)
>         at kafka.server.ReplicaManager$$Lambda$608/xxxxxx.apply$mcV$sp(Unknown Source)
>         at kafka.utils.KafkaScheduler.$anonfun$schedule$2(KafkaScheduler.scala:110)
>         at kafka.utils.KafkaScheduler$$Lambda$269/xxxxxxxx.apply$mcV$sp(Unknown Source)
>         at kafka.utils.CoreUtils$$anon$1.run(CoreUtils.scala:61)
>         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
>         at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
>         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
>         at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
>  
> Thank you,
> Sathish Yanamala
> M:832-382-4487



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