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Sathish Yanamala commented on KAFKA-7508: ----------------------------------------- Hello Santill/Manikumar, Can you please help on this , Daily we are seeing below error , jobs are getting failed. Error: java.io.IOException: Connection to 1024 was disconnected before the response was read at org.apache.kafka.clients.NetworkClientUtils.sendAndReceive(NetworkClientUtils.java:97) at kafka.controller.RequestSendThread.doWork(ControllerChannelManager.scala:240) at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:82) [2019-08-08 00:02:13,112] WARN [RequestSendThread controllerId=1024] Controller 1024's connection to broker server_name:9092 (id: 1024 rack: null) was unsuccessful (kafka.controller.RequestSendThread) java.net.SocketTimeoutException: Failed to connect within 30000 ms at kafka.controller.RequestSendThread.brokerReady(ControllerChannelManager.scala:280) at kafka.controller.RequestSendThread.doWork(ControllerChannelManager.scala:233) at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:82) Thank you, Sathish Yanamala M:832-382-4487 > 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 -- This message was sent by Atlassian JIRA (v7.6.14#76016)