# Elasticsearch Cluster Configuration when upgrading ES to 7.16.2 **URL:** \ **Category:** Elasticsearch\ **Created:** [April 22, 2022, 2:20pm UTC](https://discuss.elastic.co/t/elasticsearch-cluster-configuration-when-upgrading-es-to-7-16-2/303042 "2022-04-22T14:20:34Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![PAVK\_PRASAD](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/pavk_prasad/32/104356_2.png) [@PAVK\_PRASAD](https://discuss.elastic.co/u/PAVK_PRASAD)\ **Post date:** [April 22, 2022, 2:20pm UTC](https://discuss.elastic.co/t/elasticsearch-cluster-configuration-when-upgrading-es-to-7-16-2/303042/1 "2022-04-22T14:20:35Z")
Hi Team, Required "Elasticsearch.yml" configuration for cluster (i.e 2 nodes) when upgrading ES to 7.16.2 from 7.3.2. Is below two properties are enough for cluster xpack.security.enabled: true xpack.security.transport.ssl.enabled: true ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [April 26, 2022, 1:08am UTC](https://discuss.elastic.co/t/elasticsearch-cluster-configuration-when-upgrading-es-to-7-16-2/303042/2 "2022-04-26T01:08:13Z")
You will need to make sure you have discovery settings as per [Discovery and cluster formation | Elasticsearch Guide [7.17] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/7.17/modules-discovery.html) ---
**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, 2022, 1:08am UTC](https://discuss.elastic.co/t/elasticsearch-cluster-configuration-when-upgrading-es-to-7-16-2/303042/3 "2022-05-24T01:08:56Z")
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