# Elasticsearch unavailable during upgrade

**URL:** <https://discuss.elastic.co/t/elasticsearch-unavailable-during-upgrade/39146>\
**Category:** Elasticsearch\
**Created:** [January 13, 2016, 6:34pm UTC](https://discuss.elastic.co/t/elasticsearch-unavailable-during-upgrade/39146 "2016-01-13T18:34:49Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**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:** [January 14, 2016, 9:37pm UTC](https://discuss.elastic.co/t/elasticsearch-unavailable-during-upgrade/39146/4 "2016-01-14T21:37:26Z")

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Take a look at [Connectivity issues with a new/upgraded 2.X cluster? Read here first :)](https://discuss.elastic.co/t/connectivity-issues-with-a-new-upgraded-2-x-cluster-read-here-first/35699)

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_[View the full topic](https://discuss.elastic.co/t/elasticsearch-unavailable-during-upgrade/39146)._