# Node is not joining the cluster (ES-5.6.3) **URL:** \ **Category:** Elasticsearch\ **Created:** [November 14, 2017, 10:16pm UTC](https://discuss.elastic.co/t/node-is-not-joining-the-cluster-es-5-6-3/107641 "2017-11-14T22:16:53Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![dzyubanv](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dzyubanv/32/24110_2.png) [@dzyubanv](https://discuss.elastic.co/u/dzyubanv)\ **Post date:** [November 14, 2017, 10:16pm UTC](https://discuss.elastic.co/t/node-is-not-joining-the-cluster-es-5-6-3/107641/1 "2017-11-14T22:16:54Z")
I"m running two nodes cluster on two separate RHEL servers. Here are the configurations. server ip \*\*\*1 elasticsearch.yml cluster. name: es1 [node.name](http://node.name): es1-node1 node.master: true node.data: true network.host: \*\*\*1 transport.host: localhost http.port: 9200 transport.tcp.port: 9300 discovery.zen.ping.unicast.hosts: ["\*\*\*1:9300", "\*\*\*2:9301] discovery.zen.ping\_timeout: 30s server ip \*\*\*2 elasticsearch.yml cluster. name: es1 [node.name](http://node.name): es1-node2 node.master: false node.data: true network.host: \*\*\*2 transport.host: localhost http.port: 9201 transport.tcp.port: 9301 discovery.zen.ping.unicast.hosts: ["\*\*\*1:9300", "\*\*\*2:9301] discovery.zen.ping\_timeout: 30s The node on server \*\*\*1 has master and data roles. The node on server \*\*\*2 has data role. I started ES instances on both servers without errors in their log files. Also, I can successfully request indices via curl on server \*\*\*1. Unfortunately data node on server \*\*\*2 is not joining the cluster and running check for its health with curl -XGET 'http://\*\*\*2:9201/\_cat/health?v' on the server \*\*\*2 console outputs the following error: ("error":("root\_cause":[("type":"master\_not\_discovered\_exception","reason":"null"), "status":503) I think I might be missing something in config files, may be on the transport level or something else and any advise or help to resolve the issue will be appreciated. ---
**Author:** ![zqc0512](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/zqc0512/32/32141_2.png) [@zqc0512](https://discuss.elastic.co/u/zqc0512)\ **Post date:** [November 15, 2017, 6:48am UTC](https://discuss.elastic.co/t/node-is-not-joining-the-cluster-es-5-6-3/107641/2 "2017-11-15T06:48:21Z")
**transport.host: localhost** not use localhost. ---
**Author:** ![dzyubanv](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dzyubanv/32/24110_2.png) [@dzyubanv](https://discuss.elastic.co/u/dzyubanv)\ **Post date:** [November 15, 2017, 1:44pm UTC](https://discuss.elastic.co/t/node-is-not-joining-the-cluster-es-5-6-3/107641/3 "2017-11-15T13:44:37Z")
Should I use in transport.host the same ip values as they are in network.host ? ---
**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:** [November 15, 2017, 3:23pm UTC](https://discuss.elastic.co/t/node-is-not-joining-the-cluster-es-5-6-3/107641/4 "2017-11-15T15:23:54Z")
You should just configure `network.host`. Not other settings. ---
**Author:** ![dzyubanv](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dzyubanv/32/24110_2.png) [@dzyubanv](https://discuss.elastic.co/u/dzyubanv)\ **Post date:** [November 15, 2017, 4:17pm UTC](https://discuss.elastic.co/t/node-is-not-joining-the-cluster-es-5-6-3/107641/5 "2017-11-15T16:17:29Z")
I commented out the transport.host in es yml on both servers, then started es on first server but it failed to start, the entries in log file: [INFO][o.e.b.BootstrapChecks] [es-node1] bound or publishing to a non-loopback or non-link-local address, enforsing bootstrap checks [ERROR][o.e.b.Bootstrap][es-node1] node validation exception [3]bootstrap checks failed ... ...stopped ...closed ---
**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:** [November 15, 2017, 5:45pm UTC](https://discuss.elastic.co/t/node-is-not-joining-the-cluster-es-5-6-3/107641/6 "2017-11-15T17:45:25Z")
Please read [https://www.elastic.co/guide/en/elasticsearch/reference/current/bootstrap-checks.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/bootstrap-checks.html) ---
**Author:** ![poojagupta](https://avatars.discourse-cdn.com/v4/letter/p/5daacb/32.png) [@poojagupta](https://discuss.elastic.co/u/poojagupta)\ **Post date:** [November 16, 2017, 10:06am UTC](https://discuss.elastic.co/t/node-is-not-joining-the-cluster-es-5-6-3/107641/7 "2017-11-16T10:06:36Z")
You should do settings for network host only. no need to mention transport host and port parameter and also for discovery.unicast parameter mention only with Ips. Also make sure the entries for both server in its host file for better communication between servers . Also open port 9200 and 9300 on both servers. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [December 14, 2017, 10:06am UTC](https://discuss.elastic.co/t/node-is-not-joining-the-cluster-es-5-6-3/107641/8 "2017-12-14T10:06:48Z")
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