# Suitable Applications to build on top of Elastic Search **URL:** \ **Category:** Elastic Community and Ecosystem\ **Created:** [February 19, 2016, 5:26pm UTC](https://discuss.elastic.co/t/suitable-applications-to-build-on-top-of-elastic-search/42268 "2016-02-19T17:26:08Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![iroshan](https://avatars.discourse-cdn.com/v4/letter/i/dc4da7/32.png) [@iroshan](https://discuss.elastic.co/u/iroshan)\ **Post date:** [February 19, 2016, 5:26pm UTC](https://discuss.elastic.co/t/suitable-applications-to-build-on-top-of-elastic-search/42268/1 "2016-02-19T17:26:08Z")
Hi, We have used elastic search in our Subscriber and Billing application. And we have used it with 2 nodes and with HA set up. Note this is hosted on premises not on cloud. We are facing nodes getting corrupted and indexes getting un-assigned. So we wanted to know is this normal behavior of elastic or we are using wrongly elastic search or we are using elastic search for a some thing which it is not developed for? ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [February 22, 2016, 12:18am UTC](https://discuss.elastic.co/t/suitable-applications-to-build-on-top-of-elastic-search/42268/2 "2016-02-22T00:18:23Z")
2 nodes will not give you a fully HA setup. As Elasticsearch is a consensus based system, you need a minimum of 3 master eligible nodes in order to get it highly available for both reads and writes. If you have two or three master eligible nodes, you need to set minimum\_master\_nodes to 2 in order to avoid split brain scenarios. ---
**Author:** ![iroshan](https://avatars.discourse-cdn.com/v4/letter/i/dc4da7/32.png) [@iroshan](https://discuss.elastic.co/u/iroshan)\ **Post date:** [February 22, 2016, 3:24pm UTC](https://discuss.elastic.co/t/suitable-applications-to-build-on-top-of-elastic-search/42268/3 "2016-02-22T15:24:45Z")
Thanks a lot for reply Christan. It's a typo mistake we do have a 3 nodes and all three nodes setup as master nodes with 1 shard and 2 replicas. ---
**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, 1:44pm UTC](https://discuss.elastic.co/t/suitable-applications-to-build-on-top-of-elastic-search/42268/4 "2017-07-06T13:44:39Z")