# How does a Node find the cluster just by the cluster name? **URL:** \ **Category:** Elasticsearch\ **Created:** [August 30, 2014, 7:27am UTC](https://discuss.elastic.co/t/how-does-a-node-find-the-cluster-just-by-the-cluster-name/19534 "2014-08-30T07:27:33Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Albert\_Lim](https://avatars.discourse-cdn.com/v4/letter/a/51bf81/32.png) [@Albert\_Lim](https://discuss.elastic.co/u/Albert_Lim)\ **Post date:** [August 30, 2014, 7:27am UTC](https://discuss.elastic.co/t/how-does-a-node-find-the-cluster-just-by-the-cluster-name/19534/1 "2014-08-30T07:27:33Z")
I'm using the following code to connect to my cluster Node node = nodeBuilder().clusterName("yourclustername").node(); Client client = node.client(); How does the nodeBuilder know the IP address of my cluster, just by the cluster name? -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/931486c5-e6cb-4485-96e2-7acee388eaf6%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/931486c5-e6cb-4485-96e2-7acee388eaf6%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Albert\_Lim](https://avatars.discourse-cdn.com/v4/letter/a/51bf81/32.png) [@Albert\_Lim](https://discuss.elastic.co/u/Albert_Lim)\ **Post date:** [August 30, 2014, 7:29am UTC](https://discuss.elastic.co/t/how-does-a-node-find-the-cluster-just-by-the-cluster-name/19534/2 "2014-08-30T07:29:43Z")
Actually, is this only if you actually have elasticsearch running locally? On Saturday, August 30, 2014 12:27:33 AM UTC-7, Albert Lim wrote: > I'm using the following code to connect to my cluster > > Node node = nodeBuilder().clusterName("yourclustername").node(); > Client client = node.client(); > > How does the nodeBuilder know the IP address of my cluster, just by the > cluster name? -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/1b6481ab-40ab-40fc-b23e-8052efb158ba%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/1b6481ab-40ab-40fc-b23e-8052efb158ba%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**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:** [August 30, 2014, 7:58am UTC](https://discuss.elastic.co/t/how-does-a-node-find-the-cluster-just-by-the-cluster-name/19534/3 "2014-08-30T07:58:53Z")
It uses multicast to find other nodes running on your network. -- David 😉 Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs > Le 30 août 2014 à 09:29, Albert Lim [albertlim322@gmail.com](mailto:albertlim322@gmail.com) a écrit : > > Actually, is this only if you actually have elasticsearch running locally? > > > On Saturday, August 30, 2014 12:27:33 AM UTC-7, Albert Lim wrote: > > I'm using the following code to connect to my cluster > > > > Node node = nodeBuilder().clusterName("yourclustername").node(); > > Client client = node.client(); > > > > How does the nodeBuilder know the IP address of my cluster, just by the cluster name? > > -- > You received this message because you are subscribed to the Google Groups "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/1b6481ab-40ab-40fc-b23e-8052efb158ba%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/1b6481ab-40ab-40fc-b23e-8052efb158ba%40googlegroups.com). > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/67C6E999-8E5A-473E-B83F-13BDE17DC3AC%40pilato.fr](https://groups.google.com/d/msgid/elasticsearch/67C6E999-8E5A-473E-B83F-13BDE17DC3AC%40pilato.fr). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Albert\_Lim](https://avatars.discourse-cdn.com/v4/letter/a/51bf81/32.png) [@Albert\_Lim](https://discuss.elastic.co/u/Albert_Lim)\ **Post date:** [August 30, 2014, 10:39am UTC](https://discuss.elastic.co/t/how-does-a-node-find-the-cluster-just-by-the-cluster-name/19534/4 "2014-08-30T10:39:50Z")
Thank you, so I guess if I have my cluster running on, for example, ec2, my local web server will not be able to find the cluster through multicast. On Saturday, August 30, 2014 12:59:21 AM UTC-7, David Pilato wrote: > It uses multicast to find other nodes running on your network. > > -- > David 😉 > Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs > > Le 30 août 2014 à 09:29, Albert Lim \<[albert...@gmail.com](mailto:albert...@gmail.com) \\> a > écrit : > > Actually, is this only if you actually have elasticsearch running locally? > > On Saturday, August 30, 2014 12:27:33 AM UTC-7, Albert Lim wrote: > > > I'm using the following code to connect to my cluster > > > > Node node = nodeBuilder().clusterName("yourclustername").node(); > > Client client = node.client(); > > > > How does the nodeBuilder know the IP address of my cluster, just by the > > cluster name? > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com) \. > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/1b6481ab-40ab-40fc-b23e-8052efb158ba%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/1b6481ab-40ab-40fc-b23e-8052efb158ba%40googlegroups.com) > [https://groups.google.com/d/msgid/elasticsearch/1b6481ab-40ab-40fc-b23e-8052efb158ba%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/1b6481ab-40ab-40fc-b23e-8052efb158ba%40googlegroups.com?utm_medium=email&utm_source=footer) > . > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/a5cc1045-fb92-4da2-8ef1-79e97affe574%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/a5cc1045-fb92-4da2-8ef1-79e97affe574%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**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:** [August 30, 2014, 10:57am UTC](https://discuss.elastic.co/t/how-does-a-node-find-the-cluster-just-by-the-cluster-name/19534/5 "2014-08-30T10:57:00Z")
Yes. You need to use unicast or aws plugin. -- David 😉 Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs Le 30 août 2014 à 12:39, Albert Lim [albertlim322@gmail.com](mailto:albertlim322@gmail.com) a écrit : Thank you, so I guess if I have my cluster running on, for example, ec2, my local web server will not be able to find the cluster through multicast. > On Saturday, August 30, 2014 12:59:21 AM UTC-7, David Pilato wrote: > It uses multicast to find other nodes running on your network. > > -- > David 😉 > Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs > > > Le 30 août 2014 à 09:29, Albert Lim [albert...@gmail.com](mailto:albert...@gmail.com) a écrit : > > > > Actually, is this only if you actually have elasticsearch running locally? > > > > > On Saturday, August 30, 2014 12:27:33 AM UTC-7, Albert Lim wrote: > > > I'm using the following code to connect to my cluster > > > > > > Node node = nodeBuilder().clusterName("yourclustername").node(); > > > Client client = node.client(); > > > > > > How does the nodeBuilder know the IP address of my cluster, just by the cluster name? > > > > -- > > You received this message because you are subscribed to the Google Groups "elasticsearch" group. > > To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com). > > To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/1b6481ab-40ab-40fc-b23e-8052efb158ba%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/1b6481ab-40ab-40fc-b23e-8052efb158ba%40googlegroups.com). > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/a5cc1045-fb92-4da2-8ef1-79e97affe574%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/a5cc1045-fb92-4da2-8ef1-79e97affe574%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/016CABCD-1BF2-4D94-94BF-11D9C2198F77%40pilato.fr](https://groups.google.com/d/msgid/elasticsearch/016CABCD-1BF2-4D94-94BF-11D9C2198F77%40pilato.fr). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**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, 1:05am UTC](https://discuss.elastic.co/t/how-does-a-node-find-the-cluster-just-by-the-cluster-name/19534/6 "2017-07-06T01:05:22Z")