Hi, After running our storm cluster in AWS for few days , we are getting a Nullpointer exception in worker logs. Do you have any suggestions on this issue?
2016-09-05 02:53:25.120 o.a.s.m.n.StormServerHandler [ERROR] server errors in handling the request java.lang.NullPointerException at com. esotericsoftware.kryo.io.Input.setBuffer(Input.java:81) ~[kryo-3.0.3.jar:?] at org.apache.storm.serialization.KryoTupleDeserializer.deserialize( KryoTupleDeserializer.java:44) ~[storm-core-1.0.0.jar:1.0.0] at org.apache. storm.messaging.DeserializingConnectionCallback.recv( DeserializingConnectionCallback.java:56) ~[storm-core-1.0.0.jar:1.0.0] at org.apache.storm.messaging.netty.Server.enqueue(Server.java:133) ~[storm- core-1.0.0.jar:1.0.0] at org.apache.storm.messaging.netty.Server.received( Server.java:254) ~[storm-core-1.0.0.jar:1.0.0] at org.apache.storm.messaging .netty.StormServerHandler.messageReceived(StormServerHandler.java:61) ~[ storm-core-1.0.0.jar:1.0.0] at org.apache.storm.shade.org.jboss.netty. channel.SimpleChannelUpstreamHandler.handleUpstream( SimpleChannelUpstreamHandler.java:70) ~[storm-core-1.0.0.jar:1.0.0] at org. apache.storm.shade.org.jboss.netty.channel.DefaultChannelPipeline. sendUpstream(DefaultChannelPipeline.java:564) [storm-core-1.0.0.jar:1.0.0] at org.apache.storm.shade.org.jboss.netty.channel.DefaultChannelPipeline$ DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791) [ storm-core-1.0.0.jar:1.0.0] at org.apache.storm.shade.org.jboss.netty. channel.Channels.fireMessageReceived(Channels.java:296) [storm-core-1.0.0. jar:1.0.0] at org.apache.storm.shade.org.jboss.netty.handler.codec.frame. FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462) [storm-core -1.0.0.jar:1.0.0] at org.apache.storm.shade.org.jboss.netty.handler.codec. frame.FrameDecoder.callDecode(FrameDecoder.java:443) [storm-core-1.0.0.jar:1 .0.0] at org.apache.storm.shade.org.jboss.netty.handler.codec.frame. FrameDecoder.messageReceived(FrameDecoder.java:303) [storm-core-1.0.0.jar:1. 0.0] at org.apache.storm.shade.org.jboss.netty.channel. SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler. java:70) [storm-core-1.0.0.jar:1.0.0] at org.apache.storm.shade.org.jboss. netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline. java:564) [storm-core-1.0.0.jar:1.0.0] at org.apache.storm.shade.org.jboss. netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline. java:559) [storm-core-1.0.0.jar:1.0.0] at org.apache.storm.shade.org.jboss. netty.channel.Channels.fireMessageReceived(Channels.java:268) [storm-core-1. 0.0.jar:1.0.0] at org.apache.storm.shade.org.jboss.netty.channel.Channels. fireMessageReceived(Channels.java:255) [storm-core-1.0.0.jar:1.0.0] at org. apache.storm.shade.org.jboss.netty.channel.socket.nio.NioWorker.read( NioWorker.java:88) [storm-core-1.0.0.jar:1.0.0] at org.apache.storm.shade. org.jboss.netty.channel.socket.nio.AbstractNioWorker.process( AbstractNioWorker.java:108) [storm-core-1.0.0.jar:1.0.0] at org.apache.storm .shade.org.jboss.netty.channel.socket.nio.AbstractNioSelector.run( AbstractNioSelector.java:318) [storm-core-1.0.0.jar:1.0.0] at org.apache. storm.shade.org.jboss.netty.channel.socket.nio.AbstractNioWorker.run( AbstractNioWorker.java:89) [storm-core-1.0.0.jar:1.0.0] at org.apache.storm. shade.org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) [ storm-core-1.0.0.jar:1.0.0] at org.apache.storm.shade.org.jboss.netty.util. ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) [storm-core-1.0. 0.jar:1.0.0] at org.apache.storm.shade.org.jboss.netty.util.internal. DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) [storm-core-1.0.0.jar :1.0.0] at java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1142) [?:1.8.0_77] at java.util.concurrent. ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_77] at java.lang.Thread.run(Thread.java:745) [?:1.8.0_77]
