# NoNodeAvailableException -- Java API
**URL:** https://discuss.elastic.co/t/nonodeavailableexception-java-api/34645
**Category:** Elasticsearch
**Created:** [November 16, 2015, 6:33am UTC](https://discuss.elastic.co/t/nonodeavailableexception-java-api/34645 "2015-11-16T06:33:06Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Carlos\_Vega\_Moreno](https://discuss.elastic.co/u/Carlos_Vega_Moreno)
#### Post date: [November 16, 2015, 6:33am UTC](https://discuss.elastic.co/t/nonodeavailableexception-java-api/34645/1 "2015-11-16T06:33:06Z")
After connecting to the elasticsearch cluster through the Java API I get an error. These are the lines that proof I'm able to connect to the node. The IP is correct, I just replaced with xxx. But when I try to create a mapping I get an error. This problem occurs only with the new elasticsearch 2 and the new java api.
> 2015-11-11 11:04:36.987 Getting ES Client...
> Nov 11, 2015 11:04:37 AM org.elasticsearch.plugins.PluginsService
> INFO: [Elfqueen] loaded , sites
> 2015-11-11 11:04:36.987 Node: xxx.xxx.xxx.xxx
> 2015-11-11 11:04:36.987 ES Client obtained
I'm not able to create a new mapping in the cluster because I get this error on the last line of this piece of code:
```
CreateIndexRequestBuilder createIndexRequestBuilder = client.admin().indices().prepareCreate(indexName);
createIndexRequestBuilder.addMapping(documentName, json);
createIndexRequestBuilder.execute().actionGet();
```
> Exception in thread "Thread-1" NoNodeAvailableException[None of the configured nodes are available:]
> at org.elasticsearch.client.transport.TransportClientNodesService.ensureNodesAreAvailable(TransportClientNodesService.java:280)
> at org.elasticsearch.client.transport.TransportClientNodesService.execute(TransportClientNodesService.java:197)
> at org.elasticsearch.client.transport.support.TransportProxyClient.execute(TransportProxyClient.java:55)
> at org.elasticsearch.client.transport.TransportClient.doExecute(TransportClient.java:272)
> at org.elasticsearch.client.support.AbstractClient.execute(AbstractClient.java:347)
> at org.elasticsearch.client.support.AbstractClient$IndicesAdmin.execute(AbstractClient.java:1177)
> at org.elasticsearch.action.ActionRequestBuilder.execute(ActionRequestBuilder.java:85)
> at org.elasticsearch.action.ActionRequestBuilder.execute(ActionRequestBuilder.java:59)
Is the same code that I used with previous versions of the Java API but I didn't get any errors then. I get the ES client with this code:
```
private static Client getClient() {
Settings settings = Settings.settingsBuilder().build();
Client client = null;
TransportClient transportClient = TransportClient.builder().settings(settings).build();
try {
client = transportClient.addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName(Receptor.es_ip), 9300));
} catch (UnknownHostException e) {
System.err.println(Util.getTimestampStr() + "UnknownHostException error.");
e.printStackTrace();
}
if(transportClient.connectedNodes() == null){
System.err.println(Util.getTimestampStr() + "No connected nodes found.");
}else{
for(DiscoveryNode d : transportClient.connectedNodes()){
System.err.println(Util.getTimestampStr() + "DiscoveryNode: " + d.getHostName());
}
for(DiscoveryNode d : transportClient.listedNodes()){
System.err.println(Util.getTimestampStr() + "Node: " + d.getHostName());
}
}
return transportClient;
}
```
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 5, 2017, 11:38pm UTC](https://discuss.elastic.co/t/nonodeavailableexception-java-api/34645/2 "2017-07-05T23:38:17Z")