# Help with cluster on different network

**URL:** <https://discuss.elastic.co/t/help-with-cluster-on-different-network/8005>\
**Category:** Elasticsearch\
**Created:** [June 7, 2012, 12:49pm UTC](https://discuss.elastic.co/t/help-with-cluster-on-different-network/8005 "2012-06-07T12:49:01Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Julien\_Balmont](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/julien_balmont/32/2857_2.png) [@Julien\_Balmont](https://discuss.elastic.co/u/Julien_Balmont)\
**Post date:** [June 7, 2012, 12:49pm UTC](https://discuss.elastic.co/t/help-with-cluster-on-different-network/8005/1 "2012-06-07T12:49:01Z")

</div>

Bonjour,

je vous contacte car j'essaie désespérément de créer un cluster avec deux  
nodes depuis hier, et je me retrouve toujours face à la même erreur:  
Connection refused ☹  
J'ai donc deux nodes, que l'on nommera NODE1 et NODE2, avec respectivement  
IP1 et IP2

Hello,

I'm contating you regarding a cluster i'm trying to create woth two nodes  
inside. And i'm facinfg again and again the same error: connection refused  
☹  
I have two nodes, that I'll name NODE1 and NODE2 for this email, with  
associated IP1 and IP2

here's the conf of NODE1:  
cluster:  
name: \_cluster

network:  
host: IP1

path:  
logs: /home/logs/elasticsearch  
data: /home/elasticsearch

discovery:  
zen:  
ping:  
multicast:  
enabled: false  
unicast:  
hosts: ["IP2"]

And here's the conf of node2:  
cluster:  
name: \_1001

network:  
host: IP2

path:  
logs: /home/logs/elasticsearch  
data: /home/elasticsearch

I've activated the trace DEBUG on the discovery, here's what I get in the  
logs (I replaced the correct IPs by IP1 and IP2):  
[2012-06-07 10:28:54,230][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
connecting (light) to [#zen\_unicast\_1#][inet[/IP2:9300]]  
[2012-06-07 10:28:54,230][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
connected to [#zen\_unicast\_1#][inet[/IP2:9300]]  
[2012-06-07 10:28:54,231][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
sending to [#zen\_unicast\_1#][inet[/IP2:9300]]  
[2012-06-07 10:28:54,232][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
received response from [#zen\_unicast\_1#][inet[/IP2:9300]]:  
[ping\_response{target [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]],  
master [null], cluster\_name[\_1001]}, ping\_response{target  
[[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
cluster\_name[\_1001]}, ping\_response{target  
[[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
cluster\_name[\_1001]}, ping\_response{target  
[[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
cluster\_name[\_1001]}, ping\_response{target  
[[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
cluster\_name[\_1001]}, ping\_response{target  
[[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
cluster\_name[\_1001]}, ping\_response{target  
[[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], master  
[[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], cluster\_name[\_1001]}]  
[2012-06-07 10:28:55,730][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
sending to [#zen\_unicast\_1#][inet[/IP2:9300]]  
[2012-06-07 10:28:55,732][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
received response from [#zen\_unicast\_1#][inet[/IP2:9300]]:  
[ping\_response{target [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]],  
master [null], cluster\_name[\_1001]}, ping\_response{target  
[[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
cluster\_name[\_1001]}, ping\_response{target  
[[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
cluster\_name[\_1001]}, ping\_response{target  
[[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
cluster\_name[\_1001]}, ping\_response{target  
[[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
cluster\_name[\_1001]}, ping\_response{target  
[[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
cluster\_name[\_1001]}, ping\_response{target  
[[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], master  
[[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], cluster\_name[\_1001]}]  
[2012-06-07 10:28:57,231][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
sending to [#zen\_unicast\_1#][inet[/IP2:9300]]  
[2012-06-07 10:28:57,232][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
received response from [#zen\_unicast\_1#][inet[/IP2:9300]]:  
[ping\_response{target [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]],  
master [null], cluster\_name[\_1001]}, ping\_response{target  
[[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
cluster\_name[\_1001]}, ping\_response{target  
[[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
cluster\_name[\_1001]}, ping\_response{target  
[[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
cluster\_name[\_1001]}, ping\_response{target  
[[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
cluster\_name[\_1001]}, ping\_response{target  
[[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], master  
[[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], cluster\_name[\_1001]}]  
[2012-06-07 10:28:57,232][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
disconnecting from [#zen\_unicast\_1#][inet[/IP2:9300]]  
[2012-06-07 10:28:57,232][DEBUG][discovery.zen] [Jigsaw] ping  
responses:  
--\> target [[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], master  
[[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]]  
[2012-06-07 10:28:57,239][INFO][discovery.zen] [Jigsaw] failed  
to send join request to master  
[[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], reason  
[org.elasticsearch.transport.RemoteTransportException:  
[Ectokid][inet[/IP2:9300]][discovery/zen/join];  
org.elasticsearch.transport.ConnectTransportException:  
[Jigsaw][inet[/IP1:9300]] connect\_timeout[30s]; java.net.ConnectException:  
Connection refused]  
[2012-06-07 10:28:57,240][TRACE][discovery.zen] [Jigsaw]  
detailed failed reason  
org.elasticsearch.transport.RemoteTransportException:  
[Ectokid][inet[/IP2:9300]][discovery/zen/join]  
Caused by: org.elasticsearch.transport.ConnectTransportException:  
[Jigsaw][inet[/IP1:9300]] connect\_timeout[30s]  
at  
org.elasticsearch.transport.netty.NettyTransport.connectToChannels(NettyTransport.java:569)  
at  
org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:511)  
at  
org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:489)  
at  
org.elasticsearch.transport.TransportService.connectToNode(TransportService.java:128)  
at  
org.elasticsearch.discovery.zen.ZenDiscovery.handleJoinRequest(ZenDiscovery.java:533)  
at  
org.elasticsearch.discovery.zen.ZenDiscovery.access$1500(ZenDiscovery.java:69)  
at  
org.elasticsearch.discovery.zen.ZenDiscovery$MembershipListener.onJoin(ZenDiscovery.java:648)  
at  
org.elasticsearch.discovery.zen.membership.MembershipAction$JoinRequestRequestHandler.messageReceived(MembershipAction.java:152)  
at  
org.elasticsearch.discovery.zen.membership.MembershipAction$JoinRequestRequestHandler.messageReceived(MembershipAction.java:141)  
at  
org.elasticsearch.transport.netty.MessageChannelHandler$RequestHandler.run(MessageChannelHandler.java:373)  
at  
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)  
at  
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)  
at java.lang.Thread.run(Thread.java:636)  
Caused by: java.net.ConnectException: Connection refused  
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)  
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:592)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.connect(NioClientSocketPipelineSink.java:404)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.processSelectedKeys(NioClientSocketPipelineSink.java:366)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.run(NioClientSocketPipelineSink.java:282)  
at  
org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:102)  
at  
org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)  
... 3 more

I'm totally stuck, tried many things and don't know what to do ☹

Please help 🙂

---

<div class="post-metadata">

**Author:** ![Ivan](https://avatars.discourse-cdn.com/v4/letter/i/df788c/32.png) [@Ivan](https://discuss.elastic.co/u/Ivan)\
**Post date:** [June 7, 2012, 7:46pm UTC](https://discuss.elastic.co/t/help-with-cluster-on-different-network/8005/2 "2012-06-07T19:46:11Z")

</div>

First of all, your cluster.name values need to be identical between  
the two nodes. Even if you did not have connection refused issues, the  
two nodes would not form a cluster between themselves.

Regarding connection refused, it might be a simple port access issue.  
Is port 9300 open on both machines? Can you try 'telnet IP1 930' from  
IP2?

Cheers,

Ivan

On Thu, Jun 7, 2012 at 5:49 AM, Julien Balmont [julien.balmont@gmail.com](mailto:julien.balmont@gmail.com) wrote:

> Bonjour,
> 
> je vous contacte car j'essaie désespérément de créer un cluster avec deux  
> nodes depuis hier, et je me retrouve toujours face à la même erreur:  
> Connection refused ☹  
> J'ai donc deux nodes, que l'on nommera NODE1 et NODE2, avec respectivement  
> IP1 et IP2
> 
> Hello,
> 
> I'm contating you regarding a cluster i'm trying to create woth two nodes  
> inside. And i'm facinfg again and again the same error: connection refused  
> ☹  
> I have two nodes, that I'll name NODE1 and NODE2 for this email, with  
> associated IP1 and IP2
> 
> here's the conf of NODE1:  
> cluster:  
> name: \_cluster
> 
> network:  
> host: IP1
> 
> path:  
> logs: /home/logs/elasticsearch  
> data: /home/elasticsearch
> 
> discovery:  
> zen:  
> ping:  
> multicast:  
> enabled: false  
> unicast:  
> hosts: ["IP2"]
> 
> And here's the conf of node2:  
> cluster:  
> name: \_1001
> 
> network:  
> host: IP2
> 
> path:  
> logs: /home/logs/elasticsearch  
> data: /home/elasticsearch
> 
> I've activated the trace DEBUG on the discovery, here's what I get in the  
> logs (I replaced the correct IPs by IP1 and IP2):  
> [2012-06-07 10:28:54,230][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
> connecting (light) to [#zen\_unicast\_1#][inet[/IP2:9300]]  
> [2012-06-07 10:28:54,230][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
> connected to [#zen\_unicast\_1#][inet[/IP2:9300]]  
> [2012-06-07 10:28:54,231][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
> sending to [#zen\_unicast\_1#][inet[/IP2:9300]]  
> [2012-06-07 10:28:54,232][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
> received response from [#zen\_unicast\_1#][inet[/IP2:9300]]:  
> [ping\_response{target [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]],  
> master [null], cluster\_name[\_1001]}, ping\_response{target  
> [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> cluster\_name[\_1001]}, ping\_response{target  
> [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> cluster\_name[\_1001]}, ping\_response{target  
> [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> cluster\_name[\_1001]}, ping\_response{target  
> [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> cluster\_name[\_1001]}, ping\_response{target  
> [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> cluster\_name[\_1001]}, ping\_response{target  
> [[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], master  
> [[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], cluster\_name[\_1001]}]  
> [2012-06-07 10:28:55,730][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
> sending to [#zen\_unicast\_1#][inet[/IP2:9300]]  
> [2012-06-07 10:28:55,732][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
> received response from [#zen\_unicast\_1#][inet[/IP2:9300]]:  
> [ping\_response{target [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]],  
> master [null], cluster\_name[\_1001]}, ping\_response{target  
> [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> cluster\_name[\_1001]}, ping\_response{target  
> [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> cluster\_name[\_1001]}, ping\_response{target  
> [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> cluster\_name[\_1001]}, ping\_response{target  
> [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> cluster\_name[\_1001]}, ping\_response{target  
> [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> cluster\_name[\_1001]}, ping\_response{target  
> [[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], master  
> [[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], cluster\_name[\_1001]}]  
> [2012-06-07 10:28:57,231][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
> sending to [#zen\_unicast\_1#][inet[/IP2:9300]]  
> [2012-06-07 10:28:57,232][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
> received response from [#zen\_unicast\_1#][inet[/IP2:9300]]:  
> [ping\_response{target [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]],  
> master [null], cluster\_name[\_1001]}, ping\_response{target  
> [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> cluster\_name[\_1001]}, ping\_response{target  
> [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> cluster\_name[\_1001]}, ping\_response{target  
> [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> cluster\_name[\_1001]}, ping\_response{target  
> [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> cluster\_name[\_1001]}, ping\_response{target  
> [[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], master  
> [[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], cluster\_name[\_1001]}]  
> [2012-06-07 10:28:57,232][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
> disconnecting from [#zen\_unicast\_1#][inet[/IP2:9300]]  
> [2012-06-07 10:28:57,232][DEBUG][discovery.zen] [Jigsaw] ping  
> responses:  
> --\> target [[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], master  
> [[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]]  
> [2012-06-07 10:28:57,239][INFO][discovery.zen] [Jigsaw] failed  
> to send join request to master  
> [[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], reason  
> [org.elasticsearch.transport.RemoteTransportException:  
> [Ectokid][inet[/IP2:9300]][discovery/zen/join];  
> org.elasticsearch.transport.ConnectTransportException:  
> [Jigsaw][inet[/IP1:9300]] connect\_timeout[30s]; java.net.ConnectException:  
> Connection refused]  
> [2012-06-07 10:28:57,240][TRACE][discovery.zen] [Jigsaw]  
> detailed failed reason  
> org.elasticsearch.transport.RemoteTransportException:  
> [Ectokid][inet[/IP2:9300]][discovery/zen/join]  
> Caused by: org.elasticsearch.transport.ConnectTransportException:  
> [Jigsaw][inet[/IP1:9300]] connect\_timeout[30s]  
> at  
> org.elasticsearch.transport.netty.NettyTransport.connectToChannels(NettyTransport.java:569)  
> at  
> org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:511)  
> at  
> org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:489)  
> at  
> org.elasticsearch.transport.TransportService.connectToNode(TransportService.java:128)  
> at  
> org.elasticsearch.discovery.zen.ZenDiscovery.handleJoinRequest(ZenDiscovery.java:533)  
> at  
> org.elasticsearch.discovery.zen.ZenDiscovery.access$1500(ZenDiscovery.java:69)  
> at  
> org.elasticsearch.discovery.zen.ZenDiscovery$MembershipListener.onJoin(ZenDiscovery.java:648)  
> at  
> org.elasticsearch.discovery.zen.membership.MembershipAction$JoinRequestRequestHandler.messageReceived(MembershipAction.java:152)  
> at  
> org.elasticsearch.discovery.zen.membership.MembershipAction$JoinRequestRequestHandler.messageReceived(MembershipAction.java:141)  
> at  
> org.elasticsearch.transport.netty.MessageChannelHandler$RequestHandler.run(MessageChannelHandler.java:373)  
> at  
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)  
> at  
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)  
> at java.lang.Thread.run(Thread.java:636)  
> Caused by: java.net.ConnectException: Connection refused  
> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)  
> at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:592)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.connect(NioClientSocketPipelineSink.java:404)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.processSelectedKeys(NioClientSocketPipelineSink.java:366)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.run(NioClientSocketPipelineSink.java:282)  
> at  
> org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:102)  
> at  
> org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)  
> ... 3 more
> 
> I'm totally stuck, tried many things and don't know what to do ☹
> 
> Please help 🙂

---

<div class="post-metadata">

**Author:** ![Julien\_Balmont](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/julien_balmont/32/2857_2.png) [@Julien\_Balmont](https://discuss.elastic.co/u/Julien_Balmont)\
**Post date:** [June 7, 2012, 7:53pm UTC](https://discuss.elastic.co/t/help-with-cluster-on-different-network/8005/3 "2012-06-07T19:53:32Z")

</div>

Hi Ivan,

thanks. I just realized IP1 could telnet IP2 but not the other way ☹

Sorry for disturbing

On Thu, Jun 7, 2012 at 9:46 PM, Ivan Brusic [ivan@brusic.com](mailto:ivan@brusic.com) wrote:

> First of all, your cluster.name values need to be identical between  
> the two nodes. Even if you did not have connection refused issues, the  
> two nodes would not form a cluster between themselves.
> 
> Regarding connection refused, it might be a simple port access issue.  
> Is port 9300 open on both machines? Can you try 'telnet IP1 930' from  
> IP2?
> 
> Cheers,
> 
> Ivan
> 
> On Thu, Jun 7, 2012 at 5:49 AM, Julien Balmont [julien.balmont@gmail.com](mailto:julien.balmont@gmail.com) wrote:
> 
> > Bonjour,
> > 
> > je vous contacte car j'essaie désespérément de créer un cluster avec deux  
> > nodes depuis hier, et je me retrouve toujours face à la même erreur:  
> > Connection refused ☹  
> > J'ai donc deux nodes, que l'on nommera NODE1 et NODE2, avec respectivement  
> > IP1 et IP2
> > 
> > Hello,
> > 
> > I'm contating you regarding a cluster i'm trying to create woth two nodes  
> > inside. And i'm facinfg again and again the same error: connection refused  
> > ☹  
> > I have two nodes, that I'll name NODE1 and NODE2 for this email, with  
> > associated IP1 and IP2
> > 
> > here's the conf of NODE1:  
> > cluster:  
> > name: \_cluster
> > 
> > network:  
> > host: IP1
> > 
> > path:  
> > logs: /home/logs/elasticsearch  
> > data: /home/elasticsearch
> > 
> > discovery:  
> > zen:  
> > ping:  
> > multicast:  
> > enabled: false  
> > unicast:  
> > hosts: ["IP2"]
> > 
> > And here's the conf of node2:  
> > cluster:  
> > name: \_1001
> > 
> > network:  
> > host: IP2
> > 
> > path:  
> > logs: /home/logs/elasticsearch  
> > data: /home/elasticsearch
> > 
> > I've activated the trace DEBUG on the discovery, here's what I get in the  
> > logs (I replaced the correct IPs by IP1 and IP2):  
> > [2012-06-07 10:28:54,230][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
> > connecting (light) to [#zen\_unicast\_1#][inet[/IP2:9300]]  
> > [2012-06-07 10:28:54,230][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
> > connected to [#zen\_unicast\_1#][inet[/IP2:9300]]  
> > [2012-06-07 10:28:54,231][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
> > sending to [#zen\_unicast\_1#][inet[/IP2:9300]]  
> > [2012-06-07 10:28:54,232][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
> > received response from [#zen\_unicast\_1#][inet[/IP2:9300]]:  
> > [ping\_response{target [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]],  
> > master [null], cluster\_name[\_1001]}, ping\_response{target  
> > [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> > cluster\_name[\_1001]}, ping\_response{target  
> > [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> > cluster\_name[\_1001]}, ping\_response{target  
> > [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> > cluster\_name[\_1001]}, ping\_response{target  
> > [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> > cluster\_name[\_1001]}, ping\_response{target  
> > [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> > cluster\_name[\_1001]}, ping\_response{target  
> > [[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], master  
> > [[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], cluster\_name[\_1001]}]  
> > [2012-06-07 10:28:55,730][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
> > sending to [#zen\_unicast\_1#][inet[/IP2:9300]]  
> > [2012-06-07 10:28:55,732][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
> > received response from [#zen\_unicast\_1#][inet[/IP2:9300]]:  
> > [ping\_response{target [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]],  
> > master [null], cluster\_name[\_1001]}, ping\_response{target  
> > [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> > cluster\_name[\_1001]}, ping\_response{target  
> > [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> > cluster\_name[\_1001]}, ping\_response{target  
> > [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> > cluster\_name[\_1001]}, ping\_response{target  
> > [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> > cluster\_name[\_1001]}, ping\_response{target  
> > [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> > cluster\_name[\_1001]}, ping\_response{target  
> > [[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], master  
> > [[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], cluster\_name[\_1001]}]  
> > [2012-06-07 10:28:57,231][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
> > sending to [#zen\_unicast\_1#][inet[/IP2:9300]]  
> > [2012-06-07 10:28:57,232][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
> > received response from [#zen\_unicast\_1#][inet[/IP2:9300]]:  
> > [ping\_response{target [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]],  
> > master [null], cluster\_name[\_1001]}, ping\_response{target  
> > [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> > cluster\_name[\_1001]}, ping\_response{target  
> > [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> > cluster\_name[\_1001]}, ping\_response{target  
> > [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> > cluster\_name[\_1001]}, ping\_response{target  
> > [[Jigsaw][42HKs-CeR5GVoS981PWttA][inet[/IP1:9300]]], master [null],  
> > cluster\_name[\_1001]}, ping\_response{target  
> > [[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], master  
> > [[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], cluster\_name[\_1001]}]  
> > [2012-06-07 10:28:57,232][TRACE][discovery.zen.ping.unicast] [Jigsaw] [9]  
> > disconnecting from [#zen\_unicast\_1#][inet[/IP2:9300]]  
> > [2012-06-07 10:28:57,232][DEBUG][discovery.zen] [Jigsaw] ping  
> > responses:  
> > --\> target [[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], master  
> > [[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]]  
> > [2012-06-07 10:28:57,239][INFO][discovery.zen] [Jigsaw] failed  
> > to send join request to master  
> > [[Ectokid][QUI40ERbQEGaxlmphN8sdA][inet[/IP2:9300]]], reason  
> > [org.elasticsearch.transport.RemoteTransportException:  
> > [Ectokid][inet[/IP2:9300]][discovery/zen/join];  
> > org.elasticsearch.transport.ConnectTransportException:  
> > [Jigsaw][inet[/IP1:9300]] connect\_timeout[30s]; java.net.ConnectException:  
> > Connection refused]  
> > [2012-06-07 10:28:57,240][TRACE][discovery.zen] [Jigsaw]  
> > detailed failed reason  
> > org.elasticsearch.transport.RemoteTransportException:  
> > [Ectokid][inet[/IP2:9300]][discovery/zen/join]  
> > Caused by: org.elasticsearch.transport.ConnectTransportException:  
> > [Jigsaw][inet[/IP1:9300]] connect\_timeout[30s]  
> > at  
> > org.elasticsearch.transport.netty.NettyTransport.connectToChannels(NettyTransport.java:569)  
> > at  
> > org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:511)  
> > at  
> > org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:489)  
> > at  
> > org.elasticsearch.transport.TransportService.connectToNode(TransportService.java:128)  
> > at  
> > org.elasticsearch.discovery.zen.ZenDiscovery.handleJoinRequest(ZenDiscovery.java:533)  
> > at  
> > org.elasticsearch.discovery.zen.ZenDiscovery.access$1500(ZenDiscovery.java:69)  
> > at  
> > org.elasticsearch.discovery.zen.ZenDiscovery$MembershipListener.onJoin(ZenDiscovery.java:648)  
> > at  
> > org.elasticsearch.discovery.zen.membership.MembershipAction$JoinRequestRequestHandler.messageReceived(MembershipAction.java:152)  
> > at  
> > org.elasticsearch.discovery.zen.membership.MembershipAction$JoinRequestRequestHandler.messageReceived(MembershipAction.java:141)  
> > at  
> > org.elasticsearch.transport.netty.MessageChannelHandler$RequestHandler.run(MessageChannelHandler.java:373)  
> > at  
> > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)  
> > at  
> > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)  
> > at java.lang.Thread.run(Thread.java:636)  
> > Caused by: java.net.ConnectException: Connection refused  
> > at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)  
> > at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:592)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.connect(NioClientSocketPipelineSink.java:404)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.processSelectedKeys(NioClientSocketPipelineSink.java:366)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.run(NioClientSocketPipelineSink.java:282)  
> > at  
> > org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:102)  
> > at  
> > org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)  
> > ... 3 more
> > 
> > I'm totally stuck, tried many things and don't know what to do ☹
> > 
> > Please help 🙂

---

<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, 3:25am UTC](https://discuss.elastic.co/t/help-with-cluster-on-different-network/8005/4 "2017-07-06T03:25:20Z")

</div>