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java.nio.channels.ClosedChannelException: null	at kafka.network.BlockingChannel.send(BlockingChannel.scala:110)	at kafka.consumer.SimpleConsumer.liftedTree1$1(SimpleConsumer.scala:98)	at kafka.consumer.SimpleConsumer.kafka$consumer$SimpleConsumer$$sendRequest(SimpleConsumer.scala:83)	at kafka.consumer.SimpleConsumer.getOffsetsBefore(SimpleConsumer.scala:149)	at kafka.javaapi.consumer.SimpleConsumer.getOffsetsBefore(SimpleConsumer.scala:79)	at storm.kafka.KafkaUtils.getOffset(KafkaUtils.java:77)	at storm.kafka.KafkaUtils.getOffset(KafkaUtils.java:67)	at storm.kafka.PartitionManager.(PartitionManager.java:83)	at storm.kafka.StaticCoordinator.(StaticCoordinator.java:34)	at storm.kafka.KafkaSpout.open(KafkaSpout.java:92)	at backtype.storm.daemon.executor$fn__3371$fn__3386.invoke(executor.clj:529)	at backtype.storm.util$async_loop$fn__460.invoke(util.clj:461)	at clojure.lang.AFn.run(AFn.java:24)	at java.lang.Thread.run(Thread.java:745)