# Getting MasterNotDiscoveredException for ES node for client

**URL:** <https://discuss.elastic.co/t/getting-masternotdiscoveredexception-for-es-node-for-client/16841>\
**Category:** Elasticsearch\
**Created:** [April 7, 2014, 12:49pm UTC](https://discuss.elastic.co/t/getting-masternotdiscoveredexception-for-es-node-for-client/16841 "2014-04-07T12:49:20Z")\
**Posts on this page:** 13\
**Page:** 1

<div class="post-metadata">

**Author:** ![bagui](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bagui/32/960_2.png) [@bagui](https://discuss.elastic.co/u/bagui)\
**Post date:** [April 7, 2014, 12:49pm UTC](https://discuss.elastic.co/t/getting-masternotdiscoveredexception-for-es-node-for-client/16841/1 "2014-04-07T12:49:20Z")

</div>

Hi,

I'm using the below code for indexing data from cloud. But getting the  
below exception while calling prepareIndex . Please let me know why the  
exception is coming.

public static IndexResponse insertESDocument(String nodeName, String json)  
{  
Node node =  
nodeBuilder().clusterName("elasticsearch").client(true).data(false).node();

Client client = node.client();  
logger.debug("the node has been created with == "  
+node.settings().getAsMap());  
logger.debug("the json received as == "+json);

IndexResponse response =  
client.prepareIndex("aricloud-nodes","node-entry",nodeName )  
.setSource(json)  
.execute()  
.actionGet();  
client.close();  
node.close();  
return response;  
}

--- Exception  
07-04-2014 17:45:48,073 WARN [http-apr-8080-exec-4] xxxxxxxxxxxxxxx 1588 -  
RunNodesException  
org.elasticsearch.discovery.MasterNotDiscoveredException: waited for [1m]  
at  
org.elasticsearch.action.support.master.TransportMasterNodeOperationAction$3.onTimeout(TransportMasterNodeOperationAction.java:180)  
at  
org.elasticsearch.cluster.service.InternalClusterService$NotifyTimeout.run(InternalClusterService.java:491)  
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)

Thanks,  
Subhadip

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**Author:** ![bagui](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bagui/32/960_2.png) [@bagui](https://discuss.elastic.co/u/bagui)\
**Post date:** [April 7, 2014, 2:24pm UTC](https://discuss.elastic.co/t/getting-masternotdiscoveredexception-for-es-node-for-client/16841/2 "2014-04-07T14:24:29Z")

</div>

Please suggest. I'm getting connection error in elasticsearch end even if  
the node is running.

[2014-04-07 17:22:40,109][WARN][transport.netty] [node-master]  
exception caught on transport layer [[id: 0xd2  
f92b59, 0.0.0.0/0.0.0.0:64313]], closing connection  
java.net.SocketException: Network is unreachable: no further information  
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)  
at  
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:701)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.connect(NioClientBoss.java:150)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.processSelectedKeys(NioClientBoss.java:105)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.process(NioClientBoss.java:79)  
at  
org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:42)  
at  
org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)

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**Author:** ![bagui](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bagui/32/960_2.png) [@bagui](https://discuss.elastic.co/u/bagui)\
**Post date:** [April 7, 2014, 5:18pm UTC](https://discuss.elastic.co/t/getting-masternotdiscoveredexception-for-es-node-for-client/16841/3 "2014-04-07T17:18:39Z")

</div>

Hi,

If I remove client(true) from node initialization then I'm successfully  
indexing documents. But I want to create this node as client only without  
shards being allocated to them, as stated  
in [http://www.elasticsearch.org/guide/en/elasticsearch/client/java-api/current/client.html](http://www.elasticsearch.org/guide/en/elasticsearch/client/java-api/current/client.html)

## Also I'm getting below exception when creating index for existing shards. Please inform what is the issue here...

07-04-2014 22:33:30,813 WARN  
[elasticsearch[node-master][clusterService#updateTask][T#1]]  
org.elasticsearch.common.logging.log4j.Log4jESLogger 129 - [node-master]  
failed to connect to node  
[[Spoilsport][BVej5jdZRIearNwMRcrCYg][Subhadip-PC][inet[/192.168.1.3:9302]]{client=true,  
data=false}]

org.elasticsearch.transport.ConnectTransportException:  
[Spoilsport][inet[/192.168.1.3:9302]] connect\_timeout[30s]

at  
org.elasticsearch.transport.netty.NettyTransport.connectToChannels(NettyTransport.java:718)

at  
org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:647)

at  
org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:615)

at  
org.elasticsearch.transport.TransportService.connectToNode(TransportService.java:129)

--  
Subhadip

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<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [April 7, 2014, 5:30pm UTC](https://discuss.elastic.co/t/getting-masternotdiscoveredexception-for-es-node-for-client/16841/4 "2014-04-07T17:30:48Z")

</div>

Sounds like you have a network issue?

java.net.SocketException: Network is unreachable: no further information

May be multicast is disabled on your network so you'd better give a unicast list of nodes?

--  
David 😉  
Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs

Le 7 avr. 2014 à 19:18, Subhadip Bagui [i.bagui@gmail.com](mailto:i.bagui@gmail.com) a écrit :

Hi,

If I remove client(true) from node initialization then I'm successfully indexing documents. But I want to create this node as client only without shards being allocated to them, as stated in [http://www.elasticsearch.org/guide/en/elasticsearch/client/java-api/current/client.html](http://www.elasticsearch.org/guide/en/elasticsearch/client/java-api/current/client.html)

## Also I'm getting below exception when creating index for existing shards. Please inform what is the issue here...

07-04-2014 22:33:30,813 WARN [elasticsearch[node-master][clusterService#updateTask][T#1]] org.elasticsearch.common.logging.log4j.Log4jESLogger 129 - [node-master] failed to connect to node [[Spoilsport][BVej5jdZRIearNwMRcrCYg][Subhadip-PC][inet[/192.168.1.3:9302]]{client=true, data=false}]

org.elasticsearch.transport.ConnectTransportException: [Spoilsport][inet[/192.168.1.3:9302]] connect\_timeout[30s]

```
at org.elasticsearch.transport.netty.NettyTransport.connectToChannels(NettyTransport.java:718)

at org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:647)

at org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:615)

at org.elasticsearch.transport.TransportService.connectToNode(TransportService.java:129)

```

## -- Subhadip

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**Author:** ![bagui](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bagui/32/960_2.png) [@bagui](https://discuss.elastic.co/u/bagui)\
**Post date:** [April 8, 2014, 4:06am UTC](https://discuss.elastic.co/t/getting-masternotdiscoveredexception-for-es-node-for-client/16841/5 "2014-04-08T04:06:27Z")

</div>

Hi David,

If I restart ES the same is working. But gives me this issue if multiple  
call made after some time.

My client and server are on the same system. I stopped the firewall also.  
Any suggestion how to make multicast working. Can I create and close client  
node for multiple times?

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [April 8, 2014, 5:08am UTC](https://discuss.elastic.co/t/getting-masternotdiscoveredexception-for-es-node-for-client/16841/6 "2014-04-08T05:08:28Z")

</div>

You should share the same node and client across all threads.

--  
David 😉  
Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs

Le 8 avr. 2014 à 06:06, Subhadip Bagui [i.bagui@gmail.com](mailto:i.bagui@gmail.com) a écrit :

Hi David,

If I restart ES the same is working. But gives me this issue if multiple call made after some time.

## My client and server are on the same system. I stopped the firewall also. Any suggestion how to make multicast working. Can I create and close client node for multiple times?

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**Author:** ![bagui](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bagui/32/960_2.png) [@bagui](https://discuss.elastic.co/u/bagui)\
**Post date:** [April 8, 2014, 8:49am UTC](https://discuss.elastic.co/t/getting-masternotdiscoveredexception-for-es-node-for-client/16841/7 "2014-04-08T08:49:55Z")

</div>

Hi David,

I'm trying to store all cloud event related data like create node, delete  
node etc. in ES. So whenever a new event occurs I'm creating a new node and  
client, doing the indexing and then closing the node.

As you said, should I use same node created and use that in all occurence?  
like using a singleton? or can I create node every time with same name and  
close it after ES operation done? Pls suggest.

Thanks.  
Subhadip

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [April 8, 2014, 8:53am UTC](https://discuss.elastic.co/t/getting-masternotdiscoveredexception-for-es-node-for-client/16841/8 "2014-04-08T08:53:25Z")

</div>

Singleton is the way to go. Node and Client is thread safe.

--  
David Pilato | Technical Advocate | [Elasticsearch.com](http://Elasticsearch.com)  
@dadoonet | @elasticsearchfr

Le 8 avril 2014 à 10:49:59, Subhadip Bagui ([i.bagui@gmail.com](mailto:i.bagui@gmail.com)) a écrit:

Hi David,

I'm trying to store all cloud event related data like create node, delete node etc. in ES. So whenever a new event occurs I'm creating a new node and client, doing the indexing and then closing the node.

As you said, should I use same node created and use that in all occurence? like using a singleton? or can I create node every time with same name and close it after ES operation done? Pls suggest.

## Thanks. Subhadip

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**Author:** ![bagui](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bagui/32/960_2.png) [@bagui](https://discuss.elastic.co/u/bagui)\
**Post date:** [April 8, 2014, 9:06am UTC](https://discuss.elastic.co/t/getting-masternotdiscoveredexception-for-es-node-for-client/16841/9 "2014-04-08T09:06:50Z")

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Thanks a lot David 🙂

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**Author:** ![bagui](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bagui/32/960_2.png) [@bagui](https://discuss.elastic.co/u/bagui)\
**Post date:** [April 8, 2014, 3:17pm UTC](https://discuss.elastic.co/t/getting-masternotdiscoveredexception-for-es-node-for-client/16841/10 "2014-04-08T15:17:39Z")

</div>

Hi David,

The singleton instance for client I'm not getting for existing client.  
Trying something like this. Can you please give some working example.

public class ESClientSingleton {

private static ESClientSingleton instance;  
private ESClientSingleton()  
{

}

public static Object getInstance()  
{  
if (instance == null)  
{  
ImmutableSettings.Builder settings = ImmutableSettings.settingsBuilder();  
settings.put("node.client", true);  
settings.put("node.data", false);  
settings.put("node.name", "node-client");  
settings.put("cluster.name", "elasticsearch");  
settings.build();  
Client client = new TransportClient(settings)  
.addTransportAddress(new  
InetSocketTransportAddress("localhost", 9300));  
return client;  
}  
return instance;  
}  
}

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [April 8, 2014, 4:19pm UTC](https://discuss.elastic.co/t/getting-masternotdiscoveredexception-for-es-node-for-client/16841/11 "2014-04-08T16:19:36Z")

</div>

Looks good to me.  
I don't understand what your problem actually is.

May be you don't have a fully working cluster?

What gives GET / for example?

--  
David Pilato | Technical Advocate | [Elasticsearch.com](http://Elasticsearch.com)  
@dadoonet | @elasticsearchfr

Le 8 avril 2014 à 17:17:44, Subhadip Bagui ([i.bagui@gmail.com](mailto:i.bagui@gmail.com)) a écrit:

Hi David,

The singleton instance for client I'm not getting for existing client. Trying something like this. Can you please give some working example.

public class ESClientSingleton {

private static ESClientSingleton instance;  
private ESClientSingleton()  
{

}

## public static Object getInstance() { if (instance == null) { ImmutableSettings.Builder settings = ImmutableSettings.settingsBuilder(); settings.put("node.client", true); settings.put("node.data", false); settings.put("node.name", "node-client"); settings.put("cluster.name", "elasticsearch"); settings.build(); Client client = new TransportClient(settings) .addTransportAddress(new InetSocketTransportAddress("localhost", 9300)); return client; } return instance; } }

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**Author:** ![bagui](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bagui/32/960_2.png) [@bagui](https://discuss.elastic.co/u/bagui)\
**Post date:** [April 8, 2014, 4:30pm UTC](https://discuss.elastic.co/t/getting-masternotdiscoveredexception-for-es-node-for-client/16841/12 "2014-04-08T16:30:01Z")

</div>

Hi,

The issue is that if I leave ES inactive for some time I get java.net.SocketException:  
Network is unreachable error. I have to restart ES to get it worked. May be  
too many node or client is created.  
So I'm trying to use the same client instance created for all ES. But the  
singleton instance is not returning.

The cluster is working fine and through REST its GET I'm getting all  
indexes.

Thanks  
Subhadip

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<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, 1:37am UTC](https://discuss.elastic.co/t/getting-masternotdiscoveredexception-for-es-node-for-client/16841/13 "2017-07-06T01:37:32Z")

</div>


