We see the following messages in the broker logs whenever we reboot a broker. These messages filled up 200MB of log files in less than 1 minute. Are these normal? For reference we have enabled controlled shutdown on each broker.
[2014-03-25 22:52:45,558] INFO Reconnect due to socket error: null (kafka.consumer.SimpleConsum er) [2014-03-25 22:52:45,558] WARN [ReplicaFetcherThread-0-5], Error in fetch Name: FetchRequest; V ersion: 0; CorrelationId: 10981; ClientId: ReplicaFetcherThread-0-5; ReplicaId: 2; MaxWait: 500 ms; MinBytes: 1 bytes; RequestInfo: [optimizer-default-topic,283] -> PartitionFetchInfo(127503 ,1048576),[optimizer-default-topic,923] -> PartitionFetchInfo(132955,1048576),[optimizer-defaul t-topic,1263] -> PartitionFetchInfo(136090,1048576),[optimizer-default-topic,1143] -> Partition FetchInfo(135009,1048576),[optimizer-default-topic,1343] -> PartitionFetchInfo(131686,1048576), [optimizer-default-topic,463] -> PartitionFetchInfo(131294,1048576),[optimizer-default-topic,63 ] -> PartitionFetchInfo(137998,1048576),[optimizer-default-topic,983] -> PartitionFetchInfo(135 344,1048576),[optimizer-default-topic,3] -> PartitionFetchInfo(133825,1048576),[optimizer-defau lt-topic,623] -> PartitionFetchInfo(135370,1048576),[optimizer-default-topic,1163] -> Partition FetchInfo(131605,1048576),[optimizer-default-topic,663] -> PartitionFetchInfo(129512,1048576),[ optimizer-default-topic,603] -> PartitionFetchInfo(135542,1048576),[optimizer-default-topic,883 ] -> PartitionFetchInfo(133556,1048576),[optimizer-default-topic,303] -> PartitionFetchInfo(136 799,1048576),[optimizer-default-topic,1383] -> PartitionFetchInfo(132109,1048576),[optimizer-de fault-topic,723] -> PartitionFetchInfo(133904,1048576),[optimizer-default-topic,103] -> Partiti onFetchInfo(132492,1048576),[optimizer-default-topic,943] -> PartitionFetchInfo(133505,1048576) ,[optimizer-default-topic,1323] -> PartitionFetchInfo(132679,1048576),[optimizer-default-topic, 1283] -> PartitionFetchInfo(138022,1048576),[optimizer-default-topic,1123] -> PartitionFetchInf o(130080,1048576),[optimizer-default-topic,823] -> PartitionFetchInfo(135960,1048576),[optimize r-default-topic,563] -> PartitionFetchInfo(130459,1048576),[optimizer-default-topic,743] -> Par titionFetchInfo(133563,1048576),[optimizer-default-topic,843] -> PartitionFetchInfo(130122,1048 576),[optimizer-default-topic,1043] -> PartitionFetchInfo(135857,1048576),[optimizer-default-to pic,243] -> PartitionFetchInfo(133344,1048576),[optimizer-default-topic,1203] -> PartitionFetch Info(136861,1048576),[optimizer-default-topic,143] -> PartitionFetchInfo(138480,1048576),[optim izer-default-topic,43] -> PartitionFetchInfo(135978,1048576),[optimizer-default-topic,643] -> P artitionFetchInfo(139799,1048576),[optimizer-default-topic,863] -> PartitionFetchInfo(136473,10 48576),[optimizer-default-topic,323] -> PartitionFetchInfo(136294,1048576),[optimizer-default-t opic,363] -> PartitionFetchInfo(132374,1048576),[optimizer-default-topic,903] -> PartitionFetch Info(132833,1048576),[optimizer-default-topic,23] -> PartitionFetchInfo(138537,1048576),[optimi zer-default-topic,83] -> PartitionFetchInfo(134931,1048576),[optimizer-default-topic,1363] -> P artitionFetchInfo(133590,1048576),[optimizer-default-topic,343] -> PartitionFetchInfo(131837,10 48576),[optimizer-default-topic,263] -> PartitionFetchInfo(138943,1048576),[optimizer-default-t opic,1243] -> PartitionFetchInfo(138177,1048576),[optimizer-default-topic,1183] -> PartitionFet chInfo(129200,1048576),[optimizer-default-topic,383] -> PartitionFetchInfo(131492,1048576),[opt imizer-default-topic,443] -> PartitionFetchInfo(131666,1048576),[optimizer-default-topic,203] - > PartitionFetchInfo(135036,1048576),[optimizer-default-topic,583] -> PartitionFetchInfo(130203 ,1048576),[optimizer-default-topic,783] -> PartitionFetchInfo(133470,1048576),[optimizer-defaul t-topic,1003] -> PartitionFetchInfo(134826,1048576),[optimizer-default-topic,123] -> PartitionF etchInfo(134044,1048576),[optimizer-default-topic,1223] -> PartitionFetchInfo(133005,1048576),[ optimizer-default-topic,223] -> PartitionFetchInfo(133248,1048576),[optimizer-default-topic,803 ] -> PartitionFetchInfo(135492,1048576),[optimizer-default-topic,963] -> PartitionFetchInfo(132 238,1048576),[optimizer-default-topic,543] -> PartitionFetchInfo(132958,1048576),[optimizer-def ault-topic,763] -> PartitionFetchInfo(129710,1048576),[optimizer-default-topic,163] -> Partitio nFetchInfo(130520,1048576),[optimizer-default-topic,503] -> PartitionFetchInfo(132099,1048576), [optimizer-default-topic,1103] -> PartitionFetchInfo(138307,1048576),[optimizer-default-topic,6 83] -> PartitionFetchInfo(135641,1048576),[optimizer-default-topic,1303] -> PartitionFetchInfo( 133974,1048576),[optimizer-default-topic,483] -> PartitionFetchInfo(136166,1048576),[optimizer- default-topic,1023] -> PartitionFetchInfo(134111,1048576),[optimizer-default-topic,183] -> Part itionFetchInfo(134412,1048576),[optimizer-default-topic,703] -> PartitionFetchInfo(137102,10485 76),[optimizer-default-topic,423] -> PartitionFetchInfo(133902,1048576),[optimizer-default-topi c,523] -> PartitionFetchInfo(133113,1048576),[optimizer-default-topic,403] -> PartitionFetchInf o(136127,1048576),[optimizer-default-topic,1063] -> PartitionFetchInfo(127268,1048576) (kafka.s erver.ReplicaFetcherThread) java.net.ConnectException: Connection refused at sun.nio.ch.Net.connect(Native Method) at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:525) at kafka.network.BlockingChannel.connect(BlockingChannel.scala:57) at kafka.consumer.SimpleConsumer.connect(SimpleConsumer.scala:44) at kafka.consumer.SimpleConsumer.reconnect(SimpleConsumer.scala:57) at kafka.consumer.SimpleConsumer.liftedTree1$1(SimpleConsumer.scala:79) at kafka.consumer.SimpleConsumer.kafka$consumer$SimpleConsumer$$sendRequest(SimpleConsu mer.scala:71) at kafka.consumer.SimpleConsumer$$anonfun$fetch$1$$anonfun$apply$mcV$sp$1.apply$mcV$sp( SimpleConsumer.scala:110) at kafka.consumer.SimpleConsumer$$anonfun$fetch$1$$anonfun$apply$mcV$sp$1.apply(SimpleC onsumer.scala:110) at kafka.consumer.SimpleConsumer$$anonfun$fetch$1$$anonfun$apply$mcV$sp$1.apply(SimpleC onsumer.scala:110) at kafka.metrics.KafkaTimer.time(KafkaTimer.scala:33) at kafka.consumer.SimpleConsumer$$anonfun$fetch$1.apply$mcV$sp(SimpleConsumer.scala:109 ) at kafka.consumer.SimpleConsumer$$anonfun$fetch$1.apply(SimpleConsumer.scala:109) at kafka.consumer.SimpleConsumer$$anonfun$fetch$1.apply(SimpleConsumer.scala:109) at kafka.metrics.KafkaTimer.time(KafkaTimer.scala:33) at kafka.consumer.SimpleConsumer.fetch(SimpleConsumer.scala:108) at kafka.server.AbstractFetcherThread.processFetchRequest(AbstractFetcherThread.scala:9 4) at kafka.server.AbstractFetcherThread.doWork(AbstractFetcherThread.scala:86) at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:51)