# Java Client
**URL:** https://discuss.elastic.co/t/java-client/6972
**Category:** Elasticsearch
**Created:** [March 13, 2012, 7:43am UTC](https://discuss.elastic.co/t/java-client/6972 "2012-03-13T07:43:41Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@ksquare\_2](https://discuss.elastic.co/u/ksquare_2)
#### Post date: [March 13, 2012, 7:43am UTC](https://discuss.elastic.co/t/java-client/6972/1 "2012-03-13T07:43:41Z")
I am a newbie in Elasticsearch. I am trying to create a Java client
that connects to the Elasticsearch version 0.19.0 started via Cygwin.
Below is my sample code:
```
public static void main(String[] args) {
Node node = nodeBuilder().client(true).node();
Client client = new TransportClient()
.addTransportAddress(new InetSocketTransportAddress(
"127.0.0.1", 9300));
try {
IndexResponse response = client
.prepareIndex("twitter", "tweet", "1")
.setSource(
jsonBuilder()
.startObject()
.field("user", "kimchy")
.field("postDate", new Date())
.field("message",
"trying out Elastic Search")
.endObject()).execute().actionGet();
} catch (ElasticSearchException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
node.close();
}
```
However, when I run this test, I get the following error from running
"Node node = nodeBuilder().client(true).node();"
[2012-03-13 00:34:18,712][WARN][discovery.zen.ping.multicast] [Pitt,
Desmond] failed to read requesting data from
org.elasticsearch.ElasticSearchIllegalStateException: failed
multicastmessage, probably message from previous version at
org.elasticsearch.discovery.zen.ping.multicast.MulticastZenPing
$Receiver.run(MulticastZenPing.java:406) at
java.lang.Thread.run(Thread.java:722)
What did I do wrong?
Thanks!
---
### Author:  [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [March 13, 2012, 7:57am UTC](https://discuss.elastic.co/t/java-client/6972/2 "2012-03-13T07:57:59Z")
There's two way to connect to an ES cluster.
1. You start a client node and then ask the node to give you a client.
2. You create a simple transport client
Here you mixes the two ways.
If you want to use a node, your second line should be :
Client client = node . client ();
Did you modify settings for your ES node started with cygwin ?
BTW, why don't you start it with the windows elasticsearch command line ?
HTH
David.
Le 13 mars 2012 à 08:43, ksquare [ksquaredot@gmail.com](mailto:ksquaredot@gmail.com) a écrit :
> I am a newbie in Elasticsearch. I am trying to create a Java client
> that connects to the Elasticsearch version 0.19.0 started via Cygwin.
>
> Below is my sample code:
>
> ```
> public static void main(String[] args) {
>
> Node node = nodeBuilder().client(true).node();
> Client client = new TransportClient()
> .addTransportAddress(new
>
> ```
InetSocketTransportAddress(
> ```
> "127.0.0.1", 9300));
> try {
> IndexResponse response = client
> .prepareIndex("twitter", "tweet",
>
> ```
"1")
> ```
> .setSource(
> jsonBuilder()
>
> ```
.startObject()
>
.field("user", "kimchy")
>
.field("postDate", new Date())
>
.field("message",
>
```
"trying out Elastic Search")
```
>
.endObject()).execute().actionGet();
> ```
> } catch (ElasticSearchException e) {
>
> e.printStackTrace();
> } catch (IOException e) {
>
> e.printStackTrace();
> }
>
> node.close();
>
> }
>
> ```
>
> However, when I run this test, I get the following error from running
> "Node node = nodeBuilder().client(true).node();"
>
> [2012-03-13 00:34:18,712][WARN][discovery.zen.ping.multicast] [Pitt,
> Desmond] failed to read requesting data from
> org.elasticsearch.ElasticSearchIllegalStateException: failed
> multicastmessage, probably message from previous version at
> org.elasticsearch.discovery.zen.ping.multicast.MulticastZenPing
> $Receiver.run(MulticastZenPing.java:406) at
> java.lang.Thread.run(Thread.java:722)
>
> What did I do wrong?
>
> Thanks!
--
David Pilato
[http://dev.david.pilato.fr/](http://dev.david.pilato.fr/)
Twitter : @dadoonet
---
### Author:  [@ksquare\_2](https://discuss.elastic.co/u/ksquare_2)
#### Post date: [March 14, 2012, 7:07am UTC](https://discuss.elastic.co/t/java-client/6972/3 "2012-03-14T07:07:54Z")
Thanks for your help!
I started elasticsearch with windows and changed my first and second lines
of code. Now I have
```
public static void main(String[] args) {
Node node = nodeBuilder().node();
Client client = node.client ();
try {
IndexResponse response = client
.prepareIndex("twitter", "tweet", "1")
.setSource(
jsonBuilder()
.startObject()
.field("user", "kimchy")
.field("postDate", new Date())
.field("message",
"trying out Elastic Search")
.endObject()).execute().actionGet();
} catch (ElasticSearchException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
node.close();
}
```
However, when I run it, I got the following error in my java console:
INFO: [Achilles] {elasticsearch/0.16.0}[5864]: started
Mar 14, 2012 12:00:32 AM org.elasticsearch.common.lucene
WARNING: Failed to doc writer fields
java.lang.NoSuchFieldException: rollbackSegmentInfos
at java.lang.Class.getDeclaredField(Unknown Source)
at
org.elasticsearch.common.lucene.IndexWriters.(IndexWriters.java:43)
at
org.elasticsearch.index.engine.robin.RobinEngine.newTransactionLogId(RobinEngine.java:1060)
at
org.elasticsearch.index.engine.robin.RobinEngine.start(RobinEngine.java:230)
at
org.elasticsearch.index.shard.service.InternalIndexShard.performRecoveryPrepareForTranslog(InternalIndexShard.java:480)
at
org.elasticsearch.index.gateway.local.LocalIndexShardGateway.recover(LocalIndexShardGateway.java:143)
at
org.elasticsearch.index.gateway.IndexShardGatewayService$1.run(IndexShardGatewayService.java:144)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
What does java.lang.NoSuchFieldException: rollbackSegmentInfos mean?
Also in my windows console, I still get the following. What does it mean?
org.elasticsearch.ElasticSearchIllegalStateException: failed multicast
message, probably message from previous version
at
org.elasticsearch.discovery.zen.ping.multicast.MulticastZenPing$Receiver.run(MulticastZenPing.java:406)
at java.lang.Thread.run(Thread.java:722)
[2012-03-14 00:00:29,814][WARN][discovery.zen.ping.multicast] [DJ] failed
to read requesting data
org.elasticsearch.ElasticSearchIllegalStateException: failed multicast
message, probably message from previous version
at
org.elasticsearch.discovery.zen.ping.multicast.MulticastZenPing$Receiver.run(MulticastZenPing.java:406)
at java.lang.Thread.run(Thread.java:722)
Thanks!
On Tuesday, March 13, 2012 12:57:59 AM UTC-7, David Pilato wrote:
> There's two way to connect to an ES cluster.
>
> 1. You start a client node and then ask the node to give you a client.
>
> 2. You create a simple transport client
>
> Here you mixes the two ways.
>
> If you want to use a node, your second line should be :
>
> Client client = node . client ();
>
> Did you modify settings for your ES node started with cygwin ?
>
> BTW, why don't you start it with the windows elasticsearch command line ?
>
> HTH
>
> David.
>
> Le 13 mars 2012 à 08:43, ksquare [ksquaredot@gmail.com](mailto:ksquaredot@gmail.com) a écrit :
>
> > I am a newbie in Elasticsearch. I am trying to create a Java client
> > that connects to the Elasticsearch version 0.19.0 started via Cygwin.
> >
> > Below is my sample code:
> >
> > ```
> > public static void main(String[] args) {
> >
> > Node node = nodeBuilder().client(true).node();
> > Client client = new TransportClient()
> > .addTransportAddress(new
> >
> > ```
>
> InetSocketTransportAddress(
>
> > ```
> > "127.0.0.1", 9300));
> > try {
> > IndexResponse response = client
> > .prepareIndex("twitter",
> >
> > ```
>
> "tweet", "1")
>
> > ```
> > .setSource(
> > jsonBuilder()
> >
> > ```
>
> .startObject()
>
> >
>
> .field("user", "kimchy")
>
> >
>
> .field("postDate", new Date())
>
> >
>
> .field("message",
>
> >
>
> ```
> "trying out Elastic Search")
>
> ```
>
> >
>
> .endObject()).execute().actionGet();
>
> > ```
> > } catch (ElasticSearchException e) {
> >
> > e.printStackTrace();
> > } catch (IOException e) {
> >
> > e.printStackTrace();
> > }
> >
> > node.close();
> >
> > }
> >
> > ```
> >
> > However, when I run this test, I get the following error from running
> > "Node node = nodeBuilder().client(true).node();"
> >
> > [2012-03-13 00:34:18,712][WARN][discovery.zen.ping.multicast] [Pitt,
> > Desmond] failed to read requesting data from
> > org.elasticsearch.ElasticSearchIllegalStateException: failed
> > multicastmessage, probably message from previous version at
> > org.elasticsearch.discovery.zen.ping.multicast.MulticastZenPing
> > $Receiver.run(MulticastZenPing.java:406) at
> > java.lang.Thread.run(Thread.java:722)
> >
> > What did I do wrong?
> >
> > Thanks!
>
> --
> David Pilato
> [http://dev.david.pilato.fr/](http://dev.david.pilato.fr/)
> Twitter : @dadoonet
---
### Author:  [@kimchy](https://discuss.elastic.co/u/kimchy)
#### Post date: [March 14, 2012, 12:39pm UTC](https://discuss.elastic.co/t/java-client/6972/4 "2012-03-14T12:39:20Z")
Are you sure you are using the correct versions (of elasticsearch with relevant Lucene version)? The rollbackSegmentsInfos message can be ignore...
On Wednesday, March 14, 2012 at 9:07 AM, ksquare wrote:
> Thanks for your help!
>
> I started elasticsearch with windows and changed my first and second lines of code. Now I have
>
> ```
> public static void main(String[] args) {
> Node node = nodeBuilder().node();
> Client client = node.client ();
> try {
> IndexResponse response = client
> .prepareIndex("twitter", "tweet", "1")
> .setSource(
> jsonBuilder()
> .startObject()
> .field("user", "kimchy")
> .field("postDate", new Date())
> .field("message",
> "trying out Elastic Search")
> .endObject()).execute().actionGet();
> } catch (ElasticSearchException e) {
>
> e.printStackTrace();
> } catch (IOException e) {
>
> e.printStackTrace();
> }
>
> node.close();
>
> }
>
> ```
>
> However, when I run it, I got the following error in my java console:
>
> INFO: [Achilles] {elasticsearch/0.16.0}[5864]: started
> Mar 14, 2012 12:00:32 AM org.elasticsearch.common.lucene
> WARNING: Failed to doc writer fields
> java.lang.NoSuchFieldException: rollbackSegmentInfos
> at java.lang.Class.getDeclaredField(Unknown Source)
> at org.elasticsearch.common.lucene.IndexWriters.(IndexWriters.java:43)
> at org.elasticsearch.index.engine.robin.RobinEngine.newTransactionLogId(RobinEngine.java:1060)
> at org.elasticsearch.index.engine.robin.RobinEngine.start(RobinEngine.java:230)
> at org.elasticsearch.index.shard.service.InternalIndexShard.performRecoveryPrepareForTranslog(InternalIndexShard.java:480)
> at org.elasticsearch.index.gateway.local.LocalIndexShardGateway.recover(LocalIndexShardGateway.java:143)
> at org.elasticsearch.index.gateway.IndexShardGatewayService$1.run(IndexShardGatewayService.java:144)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
> at java.lang.Thread.run(Unknown Source)
>
> What does java.lang.NoSuchFieldException: rollbackSegmentInfos mean?
>
> Also in my windows console, I still get the following. What does it mean?
>
> org.elasticsearch.ElasticSearchIllegalStateException: failed multicast message, probably message from previous version
> at org.elasticsearch.discovery.zen.ping.multicast.MulticastZenPing$Receiver.run(MulticastZenPing.java:406)
> at java.lang.Thread.run(Thread.java:722)
> [2012-03-14 00:00:29,814][WARN][discovery.zen.ping.multicast] [DJ] failed to read requesting data
> org.elasticsearch.ElasticSearchIllegalStateException: failed multicast message, probably message from previous version
> at org.elasticsearch.discovery.zen.ping.multicast.MulticastZenPing$Receiver.run(MulticastZenPing.java:406)
> at java.lang.Thread.run(Thread.java:722)
>
> Thanks!
>
> On Tuesday, March 13, 2012 12:57:59 AM UTC-7, David Pilato wrote:
>
> > There's two way to connect to an ES cluster.
> >
> > 1. You start a client node and then ask the node to give you a client.
> >
> > 2. You create a simple transport client
> >
> > Here you mixes the two ways.
> >
> > If you want to use a node, your second line should be :
> >
> > Client client = node . client ();
> >
> > Did you modify settings for your ES node started with cygwin ?
> >
> > BTW, why don't you start it with the windows elasticsearch command line ?
> >
> > HTH
> >
> > David.
> >
> > Le 13 mars 2012 à 08:43, ksquare \<[ksquaredot@gmail.com](mailto:ksquaredot@gmail.com) ([mailto:ksquaredot@gmail.com](mailto:ksquaredot@gmail.com))\> a écrit :
> >
> > > I am a newbie in Elasticsearch. I am trying to create a Java client
> > > that connects to the Elasticsearch version 0.19.0 started via Cygwin.
> > >
> > > Below is my sample code:
> > >
> > > ```
> > > public static void main(String[] args) {
> > >
> > > Node node = nodeBuilder().client(true).node();
> > > Client client = new TransportClient()
> > > .addTransportAddress(new InetSocketTransportAddress(
> > > "127.0.0.1", 9300));
> > > try {
> > > IndexResponse response = client
> > > .prepareIndex("twitter", "tweet", "1")
> > > .setSource(
> > > jsonBuilder()
> > > .startObject()
> > > .field("user", "kimchy")
> > > .field("postDate", new Date())
> > > .field("message",
> > > "trying out Elastic Search")
> > > .endObject()).execute().actionGet();
> > > } catch (ElasticSearchException e) {
> > >
> > > e.printStackTrace();
> > > } catch (IOException e) {
> > >
> > > e.printStackTrace();
> > > }
> > >
> > > node.close();
> > >
> > > }
> > >
> > > ```
> > >
> > > However, when I run this test, I get the following error from running
> > > "Node node = nodeBuilder().client(true).node();"
> > >
> > > [2012-03-13 00:34:18,712][WARN][discovery.zen.ping.multicast] [Pitt,
> > > Desmond] failed to read requesting data from
> > > org.elasticsearch.ElasticSearchIllegalStateException: failed
> > > multicastmessage, probably message from previous version at
> > > org.elasticsearch.discovery.zen.ping.multicast.MulticastZenPing
> > > $Receiver.run(MulticastZenPing.java:406) at
> > > java.lang.Thread.run(Thread.java:722)
> > >
> > > What did I do wrong?
> > >
> > > Thanks!
> >
> > --
> > David Pilato
> > [http://dev.david.pilato.fr/](http://dev.david.pilato.fr/)
> > Twitter : @dadoonet
---
### Author:  [@ksquare\_2](https://discuss.elastic.co/u/ksquare_2)
#### Post date: [March 14, 2012, 7:54pm UTC](https://discuss.elastic.co/t/java-client/6972/5 "2012-03-14T19:54:37Z")
I am using elasticsearch 0.19.0, what Lucene dependencies do I need to
include in my Maven pom.xml file?
Thanks!
On Wednesday, March 14, 2012 5:39:20 AM UTC-7, kimchy wrote:
> Are you sure you are using the correct versions (of elasticsearch with
> relevant Lucene version)? The rollbackSegmentsInfos message can be
> ignore...
>
> On Wednesday, March 14, 2012 at 9:07 AM, ksquare wrote:
>
> Thanks for your help!
>
> I started elasticsearch with windows and changed my first and second lines
> of code. Now I have
>
> ```
> public static void main(String[] args) {
> Node node = nodeBuilder().node();
> Client client = node.client ();
> try {
> IndexResponse response = client
> .prepareIndex("twitter", "tweet", "1")
> .setSource(
> jsonBuilder()
> .startObject()
> .field("user", "kimchy")
> .field("postDate", new Date())
> .field("message",
> "trying out Elastic Search")
> .endObject()).execute().actionGet();
> } catch (ElasticSearchException e) {
>
> e.printStackTrace();
> } catch (IOException e) {
>
> e.printStackTrace();
> }
>
> node.close();
>
> }
>
> ```
>
> However, when I run it, I got the following error in my java console:
>
> INFO: [Achilles] {elasticsearch/0.16.0}[5864]: started
> Mar 14, 2012 12:00:32 AM org.elasticsearch.common.lucene
> WARNING: Failed to doc writer fields
> java.lang.NoSuchFieldException: rollbackSegmentInfos
> at java.lang.Class.getDeclaredField(Unknown Source)
> at
> org.elasticsearch.common.lucene.IndexWriters.(IndexWriters.java:43)
> at
> org.elasticsearch.index.engine.robin.RobinEngine.newTransactionLogId(RobinEngine.java:1060)
> at
> org.elasticsearch.index.engine.robin.RobinEngine.start(RobinEngine.java:230)
> at
> org.elasticsearch.index.shard.service.InternalIndexShard.performRecoveryPrepareForTranslog(InternalIndexShard.java:480)
> at
> org.elasticsearch.index.gateway.local.LocalIndexShardGateway.recover(LocalIndexShardGateway.java:143)
> at
> org.elasticsearch.index.gateway.IndexShardGatewayService$1.run(IndexShardGatewayService.java:144)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
> at java.lang.Thread.run(Unknown Source)
>
> What does java.lang.NoSuchFieldException: rollbackSegmentInfos mean?
>
> Also in my windows console, I still get the following. What does it mean?
>
> org.elasticsearch.ElasticSearchIllegalStateException: failed multicast
> message, probably message from previous version
> at
> org.elasticsearch.discovery.zen.ping.multicast.MulticastZenPing$Receiver.run(MulticastZenPing.java:406)
> at java.lang.Thread.run(Thread.java:722)
> [2012-03-14 00:00:29,814][WARN][discovery.zen.ping.multicast] [DJ] failed
> to read requesting data
> org.elasticsearch.ElasticSearchIllegalStateException: failed multicast
> message, probably message from previous version
> at
> org.elasticsearch.discovery.zen.ping.multicast.MulticastZenPing$Receiver.run(MulticastZenPing.java:406)
> at java.lang.Thread.run(Thread.java:722)
>
> Thanks!
>
> On Tuesday, March 13, 2012 12:57:59 AM UTC-7, David Pilato wrote:
>
> There's two way to connect to an ES cluster.
>
> 1. You start a client node and then ask the node to give you a client.
>
> 2. You create a simple transport client
>
> Here you mixes the two ways.
>
> If you want to use a node, your second line should be :
>
> Client client = node . client ();
>
> Did you modify settings for your ES node started with cygwin ?
>
> BTW, why don't you start it with the windows elasticsearch command line ?
>
> HTH
>
> David.
>
> Le 13 mars 2012 à 08:43, ksquare [ksquaredot@gmail.com](mailto:ksquaredot@gmail.com) a écrit :
>
> > I am a newbie in Elasticsearch. I am trying to create a Java client
> > that connects to the Elasticsearch version 0.19.0 started via Cygwin.
> >
> > Below is my sample code:
> >
> > ```
> > public static void main(String[] args) {
> >
> > Node node = nodeBuilder().client(true).node();
> > Client client = new TransportClient()
> > .addTransportAddress(new
> >
> > ```
>
> InetSocketTransportAddress(
>
> > ```
> > "127.0.0.1", 9300));
> > try {
> > IndexResponse response = client
> > .prepareIndex("twitter",
> >
> > ```
>
> "tweet", "1")
>
> > ```
> > .setSource(
> > jsonBuilder()
> >
> > ```
>
> .startObject()
>
> >
>
> .field("user", "kimchy")
>
> >
>
> .field("postDate", new Date())
>
> >
>
> .field("message",
>
> >
>
> ```
> "trying out Elastic Search")
>
> ```
>
> >
>
> .endObject()).execute().actionGet();
>
> > ```
> > } catch (ElasticSearchException e) {
> >
> > e.printStackTrace();
> > } catch (IOException e) {
> >
> > e.printStackTrace();
> > }
> >
> > node.close();
> >
> > }
> >
> > ```
> >
> > However, when I run this test, I get the following error from running
> > "Node node = nodeBuilder().client(true).node();"
> >
> > [2012-03-13 00:34:18,712][WARN][discovery.zen.ping.multicast] [Pitt,
> > Desmond] failed to read requesting data from
> > org.elasticsearch.ElasticSearchIllegalStateException: failed
> > multicastmessage, probably message from previous version at
> > org.elasticsearch.discovery.zen.ping.multicast.MulticastZenPing
> > $Receiver.run(MulticastZenPing.java:406) at
> > java.lang.Thread.run(Thread.java:722)
> >
> > What did I do wrong?
> >
> > Thanks!
>
> --
> David Pilato
> [http://dev.david.pilato.fr/](http://dev.david.pilato.fr/)
> Twitter : @dadoonet
---
### Author:  [@kimchy](https://discuss.elastic.co/u/kimchy)
#### Post date: [March 16, 2012, 5:03pm UTC](https://discuss.elastic.co/t/java-client/6972/6 "2012-03-16T17:03:01Z")
0.19.0 uses Lucene 3.5, which is part of the elasticsearch pom.xml. Make
sure you don't have several jar versions (of either elasticsearch or
Lucene).
On Wed, Mar 14, 2012 at 9:54 PM, ksquare [ksquaredot@gmail.com](mailto:ksquaredot@gmail.com) wrote:
> I am using elasticsearch 0.19.0, what Lucene dependencies do I need to
> include in my Maven pom.xml file?
>
> Thanks!
>
> On Wednesday, March 14, 2012 5:39:20 AM UTC-7, kimchy wrote:
>
> > Are you sure you are using the correct versions (of elasticsearch with
> > relevant Lucene version)? The rollbackSegmentsInfos message can be
> > ignore...
> >
> > On Wednesday, March 14, 2012 at 9:07 AM, ksquare wrote:
> >
> > Thanks for your help!
> >
> > I started elasticsearch with windows and changed my first and second
> > lines of code. Now I have
> >
> > ```
> > public static void main(String[] args) {
> > Node node = nodeBuilder().node();
> > Client client = node.client ();
> > try {
> > IndexResponse response = client
> > .prepareIndex("twitter", "tweet", "1")
> > .setSource(
> > jsonBuilder()
> > .startObject()
> > .field("user", "kimchy")
> > .field("postDate", new Date())
> > .field("message",
> > "trying out Elastic Search")
> > .endObject()).execute().**
> >
> > ```
> >
> > actionGet();
> > } catch (ElasticSearchException e) {
> >
> > ```
> > e.printStackTrace();
> > } catch (IOException e) {
> >
> > e.printStackTrace();
> > }
> >
> > node.close();
> >
> > }
> >
> > ```
> >
> > However, when I run it, I got the following error in my java console:
> >
> > INFO: [Achilles] {elasticsearch/0.16.0}[5864]: started
> > Mar 14, 2012 12:00:32 AM org.elasticsearch.common.\*\*lucene
> > WARNING: Failed to doc writer fields
> > java.lang.\*\*NoSuchFieldException: rollbackSegmentInfos
> > at java.lang.Class.\*\*getDeclaredField(Unknown Source)
> > at org.elasticsearch.common.**lucene.IndexWriters.(**
> > IndexWriters.java:43)
> > at org.elasticsearch.index. **engine.robin.RobinEngine.**
> > newTransactionLogId(**RobinEngine.java:1060)
> > at org.elasticsearch.index.engine.robin.RobinEngine.
> > start(RobinEngine.java:230)
> > at org.elasticsearch.index.shard.service.InternalIndexShard.
> > performRecoveryPrepareForTrans**log(InternalIndexShard.java:\*\*480)
> > at org.elasticsearch.index.\*\*gateway.local.\*_LocalIndexShardGateway._
> > \*recover(\*\*LocalIndexShardGateway.java:\*\*143)
> > at org.elasticsearch.index.\*\*gateway. **IndexShardGatewayService$1.**
> > run(IndexShardGatewayService.\*\*java:144)
> > at java.util.concurrent.\*\*ThreadPoolExecutor.runWorker(\*\*Unknown
> > Source)
> > at java.util.concurrent.\*\*ThreadPoolExecutor$Worker.run(\*\*Unknown
> > Source)
> > at java.lang.Thread.run(Unknown Source)
> >
> > What does java.lang.\*\*NoSuchFieldException: rollbackSegmentInfos mean?
> >
> > Also in my windows console, I still get the following. What does it mean?
> >
> > org.elasticsearch. **ElasticSearchIllegalStateExcep** tion: failed
> > multicast message, probably message from previous version
> > at org.elasticsearch.discovery. **zen.ping.multicast.**
> > MulticastZenPing$Receiver.run(\*\*MulticastZenPing.java:406)
> > at java.lang.Thread.run(Thread.\*\*java:722)
> > [2012-03-14 00:00:29,814][WARN][discovery.zen.ping.\*\*multicast] [DJ]
> > failed to read requesting data
> > org.elasticsearch. **ElasticSearchIllegalStateExcep** tion: failed
> > multicast message, probably message from previous version
> > at org.elasticsearch.discovery. **zen.ping.multicast.**
> > MulticastZenPing$Receiver.run(\*\*MulticastZenPing.java:406)
> > at java.lang.Thread.run(Thread.\*\*java:722)
> >
> > Thanks!
> >
> > On Tuesday, March 13, 2012 12:57:59 AM UTC-7, David Pilato wrote:
> >
> > There's two way to connect to an ES cluster.
> >
> > 1. You start a client node and then ask the node to give you a client.
> >
> > 2. You create a simple transport client
> >
> > Here you mixes the two ways.
> >
> > If you want to use a node, your second line should be :
> >
> > Client client = node . client ();
> >
> > Did you modify settings for your ES node started with cygwin ?
> >
> > BTW, why don't you start it with the windows elasticsearch command line
> > ?
> >
> > HTH
> >
> > David.
> >
> > Le 13 mars 2012 à 08:43, ksquare [ksquaredot@gmail.com](mailto:ksquaredot@gmail.com) a écrit :
> >
> > > I am a newbie in Elasticsearch. I am trying to create a Java client
> > > that connects to the Elasticsearch version 0.19.0 started via Cygwin.
> > >
> > > Below is my sample code:
> > >
> > > ```
> > > public static void main(String[] args) {
> > >
> > > Node node = nodeBuilder().client(true).**node();
> > > Client client = new TransportClient()
> > > .addTransportAddress(new
> > >
> > > ```
> >
> > InetSocketTransportAddress(
> >
> > > ```
> > > "127.0.0.1", 9300));
> > > try {
> > > IndexResponse response = client
> > > .prepareIndex("twitter",
> > >
> > > ```
> >
> > "tweet", "1")
> >
> > > ```
> > > .setSource(
> > > jsonBuilder()
> > >
> > > ```
> >
> > .startObject()
> >
> > >
> >
> > .field("user", "kimchy")
> >
> > >
> >
> > .field("postDate", new Date())
> >
> > >
> >
> > .field("message",
> >
> > >
> >
> > ```
> > "trying out Elastic Search")
> >
> > ```
> >
> > >
> >
> > .endObject()).execute().\*\*actionGet();
> >
> > > ```
> > > } catch (ElasticSearchException e) {
> > >
> > > e.printStackTrace();
> > > } catch (IOException e) {
> > >
> > > e.printStackTrace();
> > > }
> > >
> > > node.close();
> > >
> > > }
> > >
> > > ```
> > >
> > > However, when I run this test, I get the following error from running
> > > "Node node = nodeBuilder().client(true).\*\*node();"
> > >
> > > [2012-03-13 00:34:18,712][WARN][discovery.zen.ping.\*\*multicast]
> > > [Pitt,
> > > Desmond] failed to read requesting data from
> > > org.elasticsearch. **ElasticSearchIllegalStateExcep** tion: failed
> > > multicastmessage, probably message from previous version at
> > > org.elasticsearch.discovery.\*\*zen.ping.multicast.\*\*MulticastZenPing
> > > $Receiver.run(\*\*MulticastZenPing.java:406) at
> > > java.lang.Thread.run(Thread.\*\*java:722)
> > >
> > > What did I do wrong?
> > >
> > > Thanks!
> >
> > --
> > David Pilato
> > [http://dev.david.pilato.fr/](http://dev.david.pilato.fr/)
> > Twitter : @dadoonet
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 3:35am UTC](https://discuss.elastic.co/t/java-client/6972/7 "2017-07-06T03:35:53Z")