# Two clusters with 5 nodes each or 1 cluster with 10 nodes **URL:** \ **Category:** Elasticsearch\ **Created:** [August 2, 2012, 4:38pm UTC](https://discuss.elastic.co/t/two-clusters-with-5-nodes-each-or-1-cluster-with-10-nodes/8611 "2012-08-02T16:38:50Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Nitish\_Sharma](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/nitish_sharma/32/2626_2.png) [@Nitish\_Sharma](https://discuss.elastic.co/u/Nitish_Sharma)\ **Post date:** [August 2, 2012, 4:38pm UTC](https://discuss.elastic.co/t/two-clusters-with-5-nodes-each-or-1-cluster-with-10-nodes/8611/1 "2012-08-02T16:38:50Z")
Hi, We have two indices (index1 and index2) each with 10 shards and 1 replica, on a 5-node ES cluster. One of the indices (index2) is continuously under heavy update operations and thus hurts the search performance on the other index (index1). Typical search completion time on index1, before adding index2, was under 600 ms. Now it takes more than 2 seconds. So, we are thinking of adding 5 more nodes to the cluster. Should we make 2 different clusters (of 5 node each) hosting each index separately or just add 5 nodes to the same cluster (making it a 10 node cluster)? Which one would be more performant? Cheers Nitish ---
**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, 3:17am UTC](https://discuss.elastic.co/t/two-clusters-with-5-nodes-each-or-1-cluster-with-10-nodes/8611/2 "2017-07-06T03:17:59Z")