I have 4 kafka brokers, and create three topics, each topic has four partions 
and 3 repilca.  I use the kafka-trunk code. When I insert the data to the 
kafka, suddenly 3 of brokers dead, and I check the logs, the error is following
[2013-12-27 11:39:13,987] INFO Reconnect due to socket error: null 
(kafka.consumer.SimpleConsumer)
gs,1] -> PartitionFetchInfo(3158155,200000000),[nelo2-crash-logs,3] -> 
PartitionFetchInfo(15315,200000000) (kafka.server.ReplicaFetcherThread)
java.net.ConnectException: źε2;9Hat sun.nio.ch.Net.connect0(Native Method)
 
        at sun.nio.ch.Net.connect(Net.java:465)
        at sun.nio.ch.Net.connect(Net.java:457)
        at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:666)
        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$$sendRequest(SimpleConsumer.scala:71)
        at 
kafka.consumer.SimpleConsumer$$anonfun$fetch$1$$anonfun$apply$mcV$sp$1.apply$mcV$sp(SimpleConsumer.scala:110)
        at 
kafka.consumer.SimpleConsumer$$anonfun$fetch$1$$anonfun$apply$mcV$sp$1.apply(SimpleConsumer.scala:110)
        at 
kafka.consumer.SimpleConsumer$$anonfun$fetch$1$$anonfun$apply$mcV$sp$1.apply(SimpleConsumer.scala:110)
        at kafka.metrics.KafkaTimer.time(KafkaTimer.scala:33)
        at 
kafka.consumer.SimpleConsumer$$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)
                                                                                
                                                                                
                                                           5149,2-9      88%
        at kafka.consumer.SimpleConsumer.reconnect(SimpleConsumer.scala:57)
        at kafka.consumer.SimpleConsumer.liftedTree1$1(SimpleConsumer.scala:79)
        at 
kafka.consumer.SimpleConsumer.kafka$consumer$SimpleConsumer$$sendRequest(SimpleConsumer.scala:71)
        at 
kafka.consumer.SimpleConsumer$$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(SimpleConsumer.scala:110)
        at 
kafka.consumer.SimpleConsumer$$anonfun$fetch$1$$anonfun$apply$mcV$sp$1.apply(SimpleConsumer.scala:110)
           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:96)
        at 
kafka.server.AbstractFetcherThread.doWork(AbstractFetcherThread.scala:88)
        at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:51)
[2013-12-27 11:39:13,986] WARN [ReplicaFetcherThread-1-3], Error in fetch Name: 
FetchRequest; Version: 0; CorrelationId: 20401; ClientId: 
ReplicaFetcherThread-1-3; ReplicaId: 2; MaxWait: 500 ms; MinBytes: 1 bytes; 
RequestInfo: [nelo2-nor
mal-logs,1] -> PartitionFetchInfo(3158155,200000000),[nelo2-crash-logs,3] 
-> PartitionFetchInfo(15315,200000000) (kafka.server.ReplicaFetcherThread)
java.net.ConnectException: źε9;9Hat sun.nio.ch.Net.connect0(Native Method)
 
        at sun.nio.ch.Net.connect(Net.java:465)
        at sun.nio.ch.Net.connect(Net.java:457)
        at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:666)
        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$$sendRequest(SimpleConsumer.scala:71)
        at 
kafka.consumer.SimpleConsumer$$anonfun$fetch$1$$anonfun$apply$mcV$sp$1.apply$mcV$sp(SimpleConsumer.scala:110)
        at 
kafka.consumer.SimpleConsumer$$anonfun$fetch$1$$anonfun$apply$mcV$sp$1.apply(SimpleConsumer.scala:110)
        at 
kafka.consumer.SimpleConsumer$$anonfun$fetch$1$$anonfun$apply$mcV$sp$1.apply(SimpleConsumer.scala:110)
        at kafka.metrics.KafkaTimer.time(KafkaTimer.scala:33)
        at 
kafka.consumer.SimpleConsumer$$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:96)
        at 
kafka.server.AbstractFetcherThread.doWork(AbstractFetcherThread.scala:88)
        at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:51)
[2013-12-27 11:39:13,986] INFO Reconnect due to socket error: null 
(kafka.consumer.SimpleConsumer)
[2013-12-27 11:39:13,987] INFO Reconnect due to socket error: null 
(kafka.consumer.SimpleConsumer)
 
Can someone alway meet this problem? and I don't why this problem is occur?


Best Regards
Jerry

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