# Elasticsearch upgrade without service interruption? **URL:** \ **Category:** Elasticsearch\ **Created:** [October 15, 2013, 10:44pm UTC](https://discuss.elastic.co/t/elasticsearch-upgrade-without-service-interruption/13958 "2013-10-15T22:44:30Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Jim\_Fox](https://avatars.discourse-cdn.com/v4/letter/j/4da419/32.png) [@Jim\_Fox](https://discuss.elastic.co/u/Jim_Fox)\ **Post date:** [October 15, 2013, 10:44pm UTC](https://discuss.elastic.co/t/elasticsearch-upgrade-without-service-interruption/13958/1 "2013-10-15T22:44:30Z")
If I have an elasticsearch installation at, say, version 0.90.3, and I want to later upgrade to 0.90.2 or 0.91 or even 1.0, can that be done one node at a time? So I can keep the cluster available during the upgrade? Jim -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![spinscale](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/spinscale/32/25011_2.png) [@spinscale](https://discuss.elastic.co/u/spinscale)\ **Post date:** [October 16, 2013, 7:43am UTC](https://discuss.elastic.co/t/elasticsearch-upgrade-without-service-interruption/13958/2 "2013-10-16T07:43:46Z")
Hey, major version upgrades (as from 0.90 to 1.0) require a cluster restart. Minor versions can be done in a rolling upgrade, one node at a time. You might want to disable shard allocation during that. See > **[Elasticsearch Platform — Find real-time answers at scale](https://www.elastic.co)** > > Power insights and outcomes with the Elasticsearch Platform and AI. See into your data and find answers that matter with enterprise solutions designed to help you build, observe, and protect. Try Elasticsearch free today. --Alex On Wed, Oct 16, 2013 at 12:44 AM, Jim Fox [fox.1949@gmail.com](mailto:fox.1949@gmail.com) wrote: > If I have an elasticsearch installation at, say, version 0.90.3, and I > want to later upgrade to 0.90.2 or 0.91 or even 1.0, can that be done one > node at a time? So I can keep the cluster available during the upgrade? > > Jim > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**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, 2:12am UTC](https://discuss.elastic.co/t/elasticsearch-upgrade-without-service-interruption/13958/3 "2017-07-06T02:12:15Z")