Storm Nullpointer exception

[pradeep s <sr...@gmail.com>]

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]