# Serialization exception while trying to connect to a running node

**URL:** <https://discuss.elastic.co/t/serialization-exception-while-trying-to-connect-to-a-running-node/5936>\
**Category:** Elasticsearch\
**Created:** [November 22, 2011, 10:30am UTC](https://discuss.elastic.co/t/serialization-exception-while-trying-to-connect-to-a-running-node/5936 "2011-11-22T10:30:58Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![achaayan](https://avatars.discourse-cdn.com/v4/letter/a/dbc845/32.png) [@achaayan](https://discuss.elastic.co/u/achaayan)\
**Post date:** [November 22, 2011, 10:30am UTC](https://discuss.elastic.co/t/serialization-exception-while-trying-to-connect-to-a-running-node/5936/1 "2011-11-22T10:30:58Z")

</div>

Hi,  
I am trying to connect to EC2 using transport connection. However, I  
am getting a transportserializationexception. The same configuration  
works fine when trying to connect to ES server running outside Amazon.

Would greatly appreciate any input.

Java code :

Settings settings = ImmutableSettings.settingsBuilder()  
.put(CLUSTER\_NAME\_KEY, clusterName)  
.put("client.transport.sniff", false).build();  
Client transportClient = new TransportClient(settings)  
.addTransportAddress(new InetSocketTransportAddress(  
networkHost, transportPort));

While debugging, it seems the exception occured NodeService thrown  
while trying to add listNodes to nodes collection.

I am using ec2 discovery

Exception:

2011-11-22 10:21:31,989 WARN [org.elasticsearch.client.transport] -  
\<[Aardwolf] failed to get node info for [#transport#-1]  
[inet[[ec2-000-00-000-000.compute-1.amazonaws.com/10.211.25.50:9300](http://ec2-000-00-000-000.compute-1.amazonaws.com/10.211.25.50:9300)]]\>  
org.elasticsearch.transport.RemoteTransportException: Failed to  
deserialize response of type  
[org.elasticsearch.action.admin.cluster.node.info.NodesInfoResponse]  
Caused by:  
org.elasticsearch.transport.TransportSerializationException: Failed to  
deserialize response of type  
[org.elasticsearch.action.admin.cluster.node.info.NodesInfoResponse]  
at  
org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(MessageChannelHandler.java:  
126)  
at  
org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java:  
103)  
at  
org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:  
80)  
at  
org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:  
564)  
at  
org.elasticsearch.common.netty.channel.DefaultChannelPipeline  
$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:  
783)  
at  
org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:  
302)  
at  
org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:  
317)  
at  
org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:  
299)  
at  
org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:  
214)  
at  
org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:  
80)  
at  
org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:  
564)  
at  
org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:  
559)  
at  
org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:  
274)  
at  
org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:  
261)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java:  
349)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:  
280)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:  
200)  
at  
org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:  
108)  
at  
org.elasticsearch.common.netty.util.internal.DeadLockProofWorker  
$1.run(DeadLockProofWorker.java:44)  
at  
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:  
1110)  
at java.util.concurrent.ThreadPoolExecutor  
$Worker.run(ThreadPoolExecutor.java:603)  
at java.lang.Thread.run(Thread.java:722)  
Caused by: java.lang.NullPointerException: null value  
at  
org.elasticsearch.common.base.Preconditions.checkNotNull(Preconditions.java:  
204)  
at  
org.elasticsearch.common.collect.ImmutableMap.entryOf(ImmutableMap.java:  
139)  
at org.elasticsearch.common.collect.ImmutableMap  
$Builder.put(ImmutableMap.java:178)  
at  
org.elasticsearch.action.admin.cluster.node.info.NodeInfo.readFrom(NodeInfo.java:  
190)  
at  
org.elasticsearch.action.admin.cluster.node.info.NodeInfo.readNodeInfo(NodeInfo.java:  
181)  
at  
org.elasticsearch.action.admin.cluster.node.info.NodesInfoResponse.readFrom(NodesInfoResponse.java:  
45)  
at  
org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(MessageChannelHandler.java:  
124)  
... 21 more

---

<div class="post-metadata">

**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\
**Post date:** [November 22, 2011, 12:14pm UTC](https://discuss.elastic.co/t/serialization-exception-while-trying-to-connect-to-a-running-node/5936/2 "2011-11-22T12:14:22Z")

</div>

Are you using the same version client to connect to the server?

On Tue, Nov 22, 2011 at 12:30 PM, achaayan [felixmd@gmail.com](mailto:felixmd@gmail.com) wrote:

> Hi,  
> I am trying to connect to EC2 using transport connection. However, I  
> am getting a transportserializationexception. The same configuration  
> works fine when trying to connect to ES server running outside Amazon.
> 
> Would greatly appreciate any input.
> 
> Java code :
> 
> Settings settings = ImmutableSettings.settingsBuilder()  
> .put(CLUSTER\_NAME\_KEY, clusterName)  
> .put("client.transport.sniff",  
> false).build();  
> Client transportClient = new  
> TransportClient(settings)  
> .addTransportAddress(new  
> InetSocketTransportAddress(  
> networkHost,  
> transportPort));
> 
> While debugging, it seems the exception occured NodeService thrown  
> while trying to add listNodes to nodes collection.
> 
> I am using ec2 discovery
> 
> Exception:
> 
> 2011-11-22 10:21:31,989 WARN [org.elasticsearch.client.transport] -  
> \<[Aardwolf] failed to get node info for [#transport#-1]  
> [inet[[ec2-000-00-000-000.compute-1.amazonaws.com/10.211.25.50:9300](http://ec2-000-00-000-000.compute-1.amazonaws.com/10.211.25.50:9300)]]\>  
> org.elasticsearch.transport.RemoteTransportException: Failed to  
> deserialize response of type  
> [org.elasticsearch.action.admin.cluster.node.info.NodesInfoResponse]  
> Caused by:  
> org.elasticsearch.transport.TransportSerializationException: Failed to  
> deserialize response of type  
> [org.elasticsearch.action.admin.cluster.node.info.NodesInfoResponse]  
> at
> 
> org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(MessageChannelHandler.java:  
> 126)  
> at
> 
> org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java:  
> 103)  
> at
> 
> org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:  
> 80)  
> at
> 
> org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:  
> 564)  
> at  
> org.elasticsearch.common.netty.channel.DefaultChannelPipeline  
> $DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:  
> 783)  
> at
> 
> org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:  
> 302)  
> at
> 
> org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:  
> 317)  
> at
> 
> org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:  
> 299)  
> at
> 
> org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:  
> 214)  
> at
> 
> org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:  
> 80)  
> at
> 
> org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:  
> 564)  
> at
> 
> org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:  
> 559)  
> at
> 
> org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:  
> 274)  
> at
> 
> org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:  
> 261)  
> at
> 
> org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java:  
> 349)  
> at
> 
> org.elasticsearch.common.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:  
> 280)  
> at
> 
> org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:  
> 200)  
> at
> 
> org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:  
> 108)  
> at  
> org.elasticsearch.common.netty.util.internal.DeadLockProofWorker  
> $1.run(DeadLockProofWorker.java:44)  
> at  
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:  
> 1110)  
> at java.util.concurrent.ThreadPoolExecutor  
> $Worker.run(ThreadPoolExecutor.java:603)  
> at java.lang.Thread.run(Thread.java:722)  
> Caused by: java.lang.NullPointerException: null value  
> at
> 
> org.elasticsearch.common.base.Preconditions.checkNotNull(Preconditions.java:  
> 204)  
> at  
> org.elasticsearch.common.collect.ImmutableMap.entryOf(ImmutableMap.java:  
> 139)  
> at org.elasticsearch.common.collect.ImmutableMap  
> $Builder.put(ImmutableMap.java:178)  
> at
> 
> org.elasticsearch.action.admin.cluster.node.info.NodeInfo.readFrom(NodeInfo.java:  
> 190)  
> at
> 
> org.elasticsearch.action.admin.cluster.node.info.NodeInfo.readNodeInfo(NodeInfo.java:  
> 181)  
> at
> 
> org.elasticsearch.action.admin.cluster.node.info.NodesInfoResponse.readFrom(NodesInfoResponse.java:  
> 45)  
> at
> 
> org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(MessageChannelHandler.java:  
> 124)  
> ... 21 more

---

<div class="post-metadata">

**Author:** ![achaayan](https://avatars.discourse-cdn.com/v4/letter/a/dbc845/32.png) [@achaayan](https://discuss.elastic.co/u/achaayan)\
**Post date:** [November 23, 2011, 1:25am UTC](https://discuss.elastic.co/t/serialization-exception-while-trying-to-connect-to-a-running-node/5936/3 "2011-11-23T01:25:10Z")

</div>

That was a life saver, Shay - Thanks.

The root cause was the version mismatch between client jars and  
server.

On Nov 22, 5:14 pm, Shay Banon [kim...@gmail.com](mailto:kim...@gmail.com) wrote:

> Are you using the same version client to connect to the server?
> 
> On Tue, Nov 22, 2011 at 12:30 PM, achaayan [feli...@gmail.com](mailto:feli...@gmail.com) wrote:
> 
> > Hi,  
> > I am trying to connect to EC2 using transport connection. However, I  
> > am getting a transportserializationexception. The same configuration  
> > works fine when trying to connect to ES server running outside Amazon.
> 
> > Would greatly appreciate any input.
> 
> > Java code :
> 
> > Settings settings = ImmutableSettings.settingsBuilder()  
> > .put(CLUSTER\_NAME\_KEY, clusterName)  
> > .put("client.transport.sniff",  
> > false).build();  
> > Client transportClient = new  
> > TransportClient(settings)  
> > .addTransportAddress(new  
> > InetSocketTransportAddress(  
> > networkHost,  
> > transportPort));
> 
> > While debugging, it seems the exception occured NodeService thrown  
> > while trying to add listNodes to nodes collection.
> 
> > I am using ec2 discovery
> 
> > Exception:
> 
> > 2011-11-22 10:21:31,989 WARN [org.elasticsearch.client.transport] -  
> > \<[Aardwolf] failed to get node info for [#transport#-1]  
> > [inet[[ec2-000-00-000-000.compute-1.amazonaws.com/10.211.25.50:9300](http://ec2-000-00-000-000.compute-1.amazonaws.com/10.211.25.50:9300)]]\>  
> > org.elasticsearch.transport.RemoteTransportException: Failed to  
> > deserialize response of type  
> > [org.elasticsearch.action.admin.cluster.node.info.NodesInfoResponse]  
> > Caused by:  
> > org.elasticsearch.transport.TransportSerializationException: Failed to  
> > deserialize response of type  
> > [org.elasticsearch.action.admin.cluster.node.info.NodesInfoResponse]  
> > at
> 
> > org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(Mess ageChannelHandler.java:  
> > 126)  
> > at
> 
> > org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(Mes sageChannelHandler.java:  
> > 103)  
> > at
> 
> > org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleU pstream(SimpleChannelUpstreamHandler.java:  
> > 80)  
> > at
> 
> > org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream( DefaultChannelPipeline.java:  
> > 564)  
> > at  
> > org.elasticsearch.common.netty.channel.DefaultChannelPipeline  
> > $DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:  
> > 783)  
> > at
> 
> > org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channel s.java:  
> > 302)  
> > at
> 
> > org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.unfoldAndFi reMessageReceived(FrameDecoder.java:  
> > 317)  
> > at
> 
> > org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.callDecode( FrameDecoder.java:  
> > 299)  
> > at
> 
> > org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.messageRece ived(FrameDecoder.java:  
> > 214)  
> > at
> 
> > org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleU pstream(SimpleChannelUpstreamHandler.java:  
> > 80)  
> > at
> 
> > org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream( DefaultChannelPipeline.java:  
> > 564)  
> > at
> 
> > org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream( DefaultChannelPipeline.java:  
> > 559)  
> > at
> 
> > org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channel s.java:  
> > 274)  
> > at
> 
> > org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channel s.java:  
> > 261)  
> > at
> 
> > org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker. java:  
> > 349)  
> > at
> 
> > org.elasticsearch.common.netty.channel.socket.nio.NioWorker.processSelected Keys(NioWorker.java:  
> > 280)  
> > at
> 
> > org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.j ava:  
> > 200)  
> > at
> 
> > org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenami ngRunnable.java:  
> > 108)  
> > at  
> > org.elasticsearch.common.netty.util.internal.DeadLockProofWorker  
> > $1.run(DeadLockProofWorker.java:44)  
> > at  
> > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:  
> > 1110)  
> > at java.util.concurrent.ThreadPoolExecutor  
> > $Worker.run(ThreadPoolExecutor.java:603)  
> > at java.lang.Thread.run(Thread.java:722)  
> > Caused by: java.lang.NullPointerException: null value  
> > at
> 
> > org.elasticsearch.common.base.Preconditions.checkNotNull(Preconditions.java :  
> > 204)  
> > at  
> > org.elasticsearch.common.collect.ImmutableMap.entryOf(ImmutableMap.java:  
> > 139)  
> > at org.elasticsearch.common.collect.ImmutableMap  
> > $Builder.put(ImmutableMap.java:178)  
> > at
> 
> > org.elasticsearch.action.admin.cluster.node.info.NodeInfo.readFrom(NodeInfo .java:  
> > 190)  
> > at
> 
> > org.elasticsearch.action.admin.cluster.node.info.NodeInfo.readNodeInfo(Node Info.java:  
> > 181)  
> > at
> 
> > org.elasticsearch.action.admin.cluster.node.info.NodesInfoResponse.readFrom (NodesInfoResponse.java:  
> > 45)  
> > at
> 
> > org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(Mess ageChannelHandler.java:  
> > 124)  
> > ... 21 more

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 3:47am UTC](https://discuss.elastic.co/t/serialization-exception-while-trying-to-connect-to-a-running-node/5936/4 "2017-07-06T03:47:45Z")

</div>