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From Alexander Demidko <alexan...@metamarkets.com>
Subject Re: KafkaException: This operation cannot be completed on a complete request
Date Fri, 18 Apr 2014 18:57:12 GMT
Have tried to reproduce this error, and it occurs pretty consistently when
node being forcefully shutdown w/o graceful termination. When graceful
shutdown was successful no errors occur in a log when the instance was
rebooted starts.


On Fri, Apr 18, 2014 at 11:17 AM, Alex Demidko <alexander@metamarkets.com>wrote:

> These on alive node:
>
> 2014-04-17 21:36:29,276 ERROR [ZkClient-EventThread-15]
> state.change.logger - Controller 2 epoch 8 encountered error while electing
> leader for partition [loadtest,143] due to: Preferred replica 1 for
> partition [loadtest,143] is either not alive or not in the isr. Current
> leader and ISR: [{"leader":2,"leader_epoch":11,"isr":[2]}].
> 2014-04-17 21:36:29,276 ERROR [ZkClient-EventThread-15]
> state.change.logger - Controller 2 epoch 8 initiated state change for
> partition [loadtest,143] from OnlinePartition to OnlinePartition failed
>
> 2014-04-18 00:38:50,014 ERROR [Controller-2-to-broker-1-send-thread]
> kafka.controller.RequestSendThread -
> [Controller-2-to-broker-1-send-thread], Controller 2's connection to broker
> id:1,host:<RESTARTED_BROKER_IP>,port:9092 was unsuccessful
> 2014-04-18 00:38:50,314 ERROR [Controller-2-to-broker-1-send-thread]
> kafka.controller.RequestSendThread -
> [Controller-2-to-broker-1-send-thread], Controller 2 epoch 8 failed to send
> UpdateMetadata request with correlation id 3854 to broker
> id:1,host:<RESTARTED_BROKER_IP>,port:9092. Reconnecting to broker.
>
>
> On Apr 18, 2014, at 10:41 AM, Jun Rao <junrao@gmail.com> wrote:
>
> > Any errors from the controller/state-change log?
> >
> > Thanks,
> >
> > Jun
> >
> >
> > On Fri, Apr 18, 2014 at 9:57 AM, Alex Demidko <alexander@metamarkets.com
> >wrote:
> >
> >> Hi,
> >>
> >> I'm performing a producing load test on two node kafka cluster built
> from
> >> the last 0.8.1 branch sources. I have topic loadtest with replication
> >> factor 2 and 256 partitions. Initially both brokers are in ISR and
> >> leadership is balanced. When in the middle of the load test one broker
> was
> >> restarted (wasn't able to go with controlled shutdown in specified time
> and
> >> was killed), I started receiving following errors which as far as I
> >> understand coming from replication:
> >>
> >>
> >> On restarted broker
> >>
> >> 2014-04-18 16:15:02,214 ERROR [ReplicaFetcherThread-5-2]
> >> kafka.server.ReplicaFetcherThread - [ReplicaFetcherThread-5-2], Error in
> >> fetch Name: FetchRequest; Version: 0; CorrelationId: 52890; ClientId:
> >> ReplicaFetcherThread-5-2; ReplicaId: 1; MaxWait: 1000 ms; MinBytes: 1
> >> bytes; RequestInfo: [loadtest2,71] ->
> >> PartitionFetchInfo(0,104857600),[loadtest,85] ->
> >> PartitionFetchInfo(113676000,104857600),[loadtest,189] ->
> >> PartitionFetchInfo(112277000,104857600),[loadtest,21] ->
> >> PartitionFetchInfo(0,104857600),[loadtest,205] ->
> >> PartitionFetchInfo(112986000,104857600),[loadtest,141] ->
> >> PartitionFetchInfo(0,104857600),[loadtest,253] ->
> >> PartitionFetchInfo(0,104857600),[loadtest,77] ->
> >> PartitionFetchInfo(0,104857600),[loadtest,61] ->
> >> PartitionFetchInfo(112490000,104857600),[loadtest,229] ->
> >> PartitionFetchInfo(112805000,104857600),[loadtest,133] ->
> >> PartitionFetchInfo(0,104857600),[loadtest2,15] ->
> >> PartitionFetchInfo(0,104857600),[loadtest2,63] ->
> >> PartitionFetchInfo(0,104857600),[loadtest,181] ->
> >> PartitionFetchInfo(0,104857600),[loadtest,5] ->
> >> PartitionFetchInfo(112530000,104857600),[loadtest,29] ->
> >> PartitionFetchInfo(0,104857600),[loadtest,45] ->
> >> PartitionFetchInfo(113113000,104857600),[loadtest2,39] ->
> >> PartitionFetchInfo(0,104857600),[loadtest,37] ->
> >> PartitionFetchInfo(112145000,104857600),[loadtest,13] ->
> >> PartitionFetchInfo(112915000,104857600),[loadtest,237] ->
> >> PartitionFetchInfo(112896000,104857600),[loadtest,149] ->
> >> PartitionFetchInfo(113232000,104857600),[loadtest,117] ->
> >> PartitionFetchInfo(113100000,104857600),[loadtest,157] ->
> >> PartitionFetchInfo(0,104857600),[loadtest,165] ->
> >> PartitionFetchInfo(0,104857600),[loadtest,101] ->
> >> PartitionFetchInfo(0,104857600),[loadtest,93] ->
> >> PartitionFetchInfo(113025000,104857600),[loadtest,125] ->
> >> PartitionFetchInfo(112896000,104857600),[loadtest,197] ->
> >> PartitionFetchInfo(0,104857600),[loadtest,109] ->
> >> PartitionFetchInfo(0,104857600),[loadtest,245] ->
> >> PartitionFetchInfo(0,104857600),[loadtest,213] ->
> >> PartitionFetchInfo(0,104857600),[loadtest,53] ->
> >> PartitionFetchInfo(0,104857600),[loadtest,173] ->
> >> PartitionFetchInfo(112757000,104857600),[loadtest,69] ->
> >> PartitionFetchInfo(112378000,104857600),[loadtest,221] ->
> >> PartitionFetchInfo(0,104857600)
> >> java.io.EOFException: Received -1 when reading from channel, socket has
> >> likely been closed.
> >>        at kafka.utils.Utils$.read(Utils.scala:376)
> >>        at
> >>
> kafka.network.BoundedByteBufferReceive.readFrom(BoundedByteBufferReceive.scala:54)
> >>        at
> >> kafka.network.Receive$class.readCompletely(Transmission.scala:56)
> >>        at
> >>
> kafka.network.BoundedByteBufferReceive.readCompletely(BoundedByteBufferReceive.scala:29)
> >>        at
> kafka.network.BlockingChannel.receive(BlockingChannel.scala:100)
> >>        at
> >> kafka.consumer.SimpleConsumer.liftedTree1$1(SimpleConsumer.scala:81)
> >>        at
> >>
> kafka.consumer.SimpleConsumer.kafka$consumer$SimpleConsumer$$sendRequest(SimpleConsumer.scala:71)
> >>        at
> >>
> kafka.consumer.SimpleConsumer$$anonfun$fetch$1$$anonfun$apply$mcV$sp$1.apply$mcV$sp(SimpleConsumer.scala:109)
> >>        at
> >>
> kafka.consumer.SimpleConsumer$$anonfun$fetch$1$$anonfun$apply$mcV$sp$1.apply(SimpleConsumer.scala:109)
> >>        at
> >>
> kafka.consumer.SimpleConsumer$$anonfun$fetch$1$$anonfun$apply$mcV$sp$1.apply(SimpleConsumer.scala:109)
> >>        at kafka.metrics.KafkaTimer.time(KafkaTimer.scala:33)
> >>        at
> >>
> kafka.consumer.SimpleConsumer$$anonfun$fetch$1.apply$mcV$sp(SimpleConsumer.scala:108)
> >>        at
> >>
> kafka.consumer.SimpleConsumer$$anonfun$fetch$1.apply(SimpleConsumer.scala:108)
> >>        at
> >>
> kafka.consumer.SimpleConsumer$$anonfun$fetch$1.apply(SimpleConsumer.scala:108)
> >>        at kafka.metrics.KafkaTimer.time(KafkaTimer.scala:33)
> >>        at kafka.consumer.SimpleConsumer.fetch(SimpleConsumer.scala:107)
> >>        at
> >>
> kafka.server.AbstractFetcherThread.processFetchRequest(AbstractFetcherThread.scala:96)
> >>        at
> >>
> kafka.server.AbstractFetcherThread.doWork(AbstractFetcherThread.scala:88)
> >>        at
> kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:51)
> >> 2014-04-18 16:15:02,215 WARN  [ReplicaFetcherThread-1-2]
> >> kafka.consumer.SimpleConsumer - Reconnect due to socket error: null
> >>
> >>
> >> On current leader
> >>
> >> 2014-04-18 16:15:10,235 ERROR [kafka-processor-9092-1]
> >> kafka.network.Processor - Closing socket for /10.41.133.59 because of
> >> error
> >> kafka.common.KafkaException: This operation cannot be completed on a
> >> complete request.
> >>        at
> >> kafka.network.Transmission$class.expectIncomplete(Transmission.scala:34)
> >>        at
> >> kafka.api.FetchResponseSend.expectIncomplete(FetchResponse.scala:191)
> >>        at kafka.api.FetchResponseSend.writeTo(FetchResponse.scala:214)
> >>        at kafka.network.Processor.write(SocketServer.scala:375)
> >>        at kafka.network.Processor.run(SocketServer.scala:247)
> >>        at java.lang.Thread.run(Thread.java:744)
> >>
> >>
> >> These errors are constantly bubbling up in logs and restarted broker
> never
> >> made it back to ISR even when the load test was stopped.
> >>
> >>
> >> Kafka configuration:
> >>
> >> host.name                                   = #{IP_ADDR}
> >> port                                        = 9092
> >> socket.send.buffer.bytes                    = 1048576
> >> socket.receive.buffer.bytes                 = 1048576
> >> socket.request.max.bytes                    = 104857600
> >> num.io.threads                              = 24
> >> queued.max.requests                         = 1024
> >> fetch.purgatory.purge.interval.requests     = 1024
> >> producer.purgatory.purge.interval.requests  = 1024
> >>
> >>
> >>
> >> broker.id                                   = #{BROKER_ID}
> >>
> >> log.flush.interval.messages                 = 100000
> >> log.flush.scheduler.interval.ms             = 1000
> >> log.flush.interval.ms                       = 2000
> >>
> >> log.dirs                                    = \
> >>
> >>
> /mnt1/tmp/kafka-logs,/mnt2/tmp/kafka-logs,/mnt3/tmp/kafka-logs,/mnt4/tmp/kafka-logs,\
> >>
> >>
> /mnt5/tmp/kafka-logs,/mnt6/tmp/kafka-logs,/mnt7/tmp/kafka-logs,/mnt8/tmp/kafka-logs,\
> >>
> >>
> /mnt9/tmp/kafka-logs,/mnt10/tmp/kafka-logs,/mnt11/tmp/kafka-logs,/mnt12/tmp/kafka-logs,\
> >>
> >>
> /mnt13/tmp/kafka-logs,/mnt14/tmp/kafka-logs,/mnt15/tmp/kafka-logs,/mnt16/tmp/kafka-logs,\
> >>
> >>
> /mnt17/tmp/kafka-logs,/mnt18/tmp/kafka-logs,/mnt19/tmp/kafka-logs,/mnt20/tmp/kafka-logs,\
> >>
> >>
> /mnt21/tmp/kafka-logs,/mnt22/tmp/kafka-logs,/mnt23/tmp/kafka-logs,/mnt24/tmp/kafka-logs
> >>
> >> log.segment.bytes                           = 1000000000
> >> log.roll.hours                              = 1
> >>
> >> log.retention.minutes                       = 10080
> >> log.retention.check.interval.ms             = 300000
> >> log.cleanup.policy                          = delete
> >>
> >> log.index.size.max.bytes                    = 10485760
> >>
> >> num.partitions                              = 256
> >> auto.create.topics.enable                   = false
> >>
> >>
> >> default.replication.factor                      = 2
> >> replica.lag.time.max.ms                         = 15000
> >> replica.lag.max.messages                        = 750000
> >> num.replica.fetchers                            = 8
> >> replica.socket.timeout.ms                       = 30000
> >> replica.socket.receive.buffer.bytes             = 1048576
> >> replica.fetch.max.bytes                         = 104857600
> >> replica.fetch.wait.max.ms                       = 1000
> >> replica.fetch.min.bytes                         = 1
> >> replica.high.watermark.checkpoint.interval.ms   = 5000
> >>
> >> controlled.shutdown.enable                      = true
> >> controlled.shutdown.max.retries                 = 1
> >> controlled.shutdown.retry.backoff.ms            = 300000
> >>
> >> auto.leader.rebalance.enable                    = true
> >> leader.imbalance.per.broker.percentage          = 10
> >> leader.imbalance.check.interval.seconds         = 300
> >>
> >>
> >> zookeeper.connect                           = #{ZK_PATH}
> >> zookeeper.session.timeout.ms                = 30000
> >> zookeeper.connection.timeout.ms             = 30000
> >>
> >>
> >> Why this might happen?
> >>
> >>
> >> Thanks,
> >> Alex
>
>

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