The content below is the report for kafka when i try to fetch coordinator broker, i get 6 for ever.
[2015-11-25 14:48:28,638] ERROR [KafkaApi-1] error when handling request Name: FetchRequest; Version: 1; CorrelationId: 643; ClientId: ReplicaFetcherThread-0-4; ReplicaId: 1; MaxWait: 500 ms; MinBytes: 1 bytes; RequestInfo: [__consumer_offsets,49] -> PartitionFetchInfo(0,1048576),[__consumer_offsets,17] -> PartitionFetchInfo(0,1048576),[__con sumer_offsets,29] -> PartitionFetchInfo(0,1048576),[blcs,6] -> PartitionFetchInfo(0,1048576),[__consumer_offsets,41] -> PartitionFetchInfo(0,1048576),[__consumer_offsets,13 ] -> PartitionFetchInfo(0,1048576),[__consumer_offsets,5] -> PartitionFetchInfo(0,1048576),[__consumer_offsets,37] -> PartitionFetchInfo(0,1048576),[__consumer_offsets,25] -> PartitionFetchInfo(0,1048576),[__consumer_offsets,1] -> PartitionFetchInfo(0,1048576) (kafka.server.KafkaApis) kafka.common.KafkaException: Should not set log end offset on partition [__consumer_offsets,49]'s local replica 1 at kafka.cluster.Replica.logEndOffset_$eq(Replica.scala:66) at kafka.cluster.Replica.updateLogReadResult(Replica.scala:53) at kafka.cluster.Partition.updateReplicaLogReadResult(Partition.scala:240) at kafka.server.ReplicaManager$$anonfun$updateFollowerLogReadResults$2.apply(ReplicaManager.scala:852) at kafka.server.ReplicaManager$$anonfun$updateFollowerLogReadResults$2.apply(ReplicaManager.scala:849) at scala.collection.immutable.HashMap$HashMap1.foreach(HashMap.scala:221) at scala.collection.immutable.HashMap$HashTrieMap.foreach(HashMap.scala:428) at kafka.server.ReplicaManager.updateFollowerLogReadResults(ReplicaManager.scala:849) at kafka.server.ReplicaManager.fetchMessages(ReplicaManager.scala:467) at kafka.server.KafkaApis.handleFetchRequest(KafkaApis.scala:434) at kafka.server.KafkaApis.handle(KafkaApis.scala:69) at kafka.server.KafkaRequestHandler.run(KafkaRequestHandler.scala:60) at java.lang.Thread.run(Thread.java:722)