# Elastic Cluster on aws **URL:** \ **Category:** Elasticsearch\ **Created:** [April 26, 2018, 1:28pm UTC](https://discuss.elastic.co/t/elastic-cluster-on-aws/129683 "2018-04-26T13:28:09Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![astrobounce](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/astrobounce/32/30511_2.png) [@astrobounce](https://discuss.elastic.co/u/astrobounce)\ **Post date:** [April 26, 2018, 1:28pm UTC](https://discuss.elastic.co/t/elastic-cluster-on-aws/129683/1 "2018-04-26T13:28:09Z")
Hello team , I had been running Elastic cluster on traditional VM's with following architecture . 3 master Nodes 3 Client Nodes 5 Hot Data Nodes and 3 Warm Data nodes ( Implemented Hot warm architecture from elastic blog ) ( Each node has master nodes entry as unicast host lists , with 2 minimum number of masters set , #discovery.zen.ping.unicast.hosts: ["X.X.X.X:9300", "X.X.X.X:9300", "X.X.X.X:9300"] #discovery.zen.minimum\_master\_nodes: 2 #discovery.zen.ping\_timeout: 30s This was running perfectly fine from last 2 years . Now we are trying to move this complete architecture to aws and want to use aws ec2 discovery plugin of elasticsearch . We have provisioned 3 instances and changed the discovery settings to discovery.zen.hosts\_provider: ec2 ( aws ec2 discovery plugin ) discovery.ec2.groups: staging-elasticsearch-cluster ( security group name ) discovery.ec2.tag.environment: staging ( tag with name environment and value staging ) This too is working fine for me . Now scenario is I have to implement the earlier architecture ( 3 master , 3 Client , 5 Hot Nodes , 3 Warn Nodes) using ec2 discovery plugin , So the actual thing which I am trying to understand is how each master will be discovered using ec2 plugin . because we have now different node types deployed . Do we have to make some extra settings to implement same . Hoping for some real scenario replies . Regards ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [May 24, 2018, 1:28pm UTC](https://discuss.elastic.co/t/elastic-cluster-on-aws/129683/2 "2018-05-24T13:28:24Z")
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