# Updating the index without downtime

**URL:** <https://discuss.elastic.co/t/updating-the-index-without-downtime/84773>\
**Category:** Elasticsearch\
**Created:** [May 5, 2017, 7:37pm UTC](https://discuss.elastic.co/t/updating-the-index-without-downtime/84773 "2017-05-05T19:37:37Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![mruthyu](https://avatars.discourse-cdn.com/v4/letter/m/bb73d2/32.png) [@mruthyu](https://discuss.elastic.co/u/mruthyu)\
**Post date:** [May 5, 2017, 7:37pm UTC](https://discuss.elastic.co/t/updating-the-index-without-downtime/84773/1 "2017-05-05T19:37:37Z")

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How to update/recreate the index without downtime in multinode elasticsearch environment?

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**Author:** ![Nilabhsagar](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/nilabhsagar/32/10647_2.png) [@Nilabhsagar](https://discuss.elastic.co/u/Nilabhsagar)\
**Post date:** [May 6, 2017, 8:29am UTC](https://discuss.elastic.co/t/updating-the-index-without-downtime/84773/2 "2017-05-06T08:29:58Z")

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There is good documentation on what you are looking. Follow this [Index Aliases and Zero Downtime](https://www.elastic.co/guide/en/elasticsearch/guide/current/index-aliases.html)

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**Author:** ![mruthyu](https://avatars.discourse-cdn.com/v4/letter/m/bb73d2/32.png) [@mruthyu](https://discuss.elastic.co/u/mruthyu)\
**Post date:** [May 8, 2017, 10:57am UTC](https://discuss.elastic.co/t/updating-the-index-without-downtime/84773/3 "2017-05-08T10:57:18Z")

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Thanks. Only challenge what I see here is to have the double the disk space to create a new index.

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**Author:** ![Nilabhsagar](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/nilabhsagar/32/10647_2.png) [@Nilabhsagar](https://discuss.elastic.co/u/Nilabhsagar)\
**Post date:** [May 8, 2017, 12:22pm UTC](https://discuss.elastic.co/t/updating-the-index-without-downtime/84773/4 "2017-05-08T12:22:08Z")

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Yes that's true, but you can delete the old index once done to reduce the disk utilization.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [June 5, 2017, 12:35pm UTC](https://discuss.elastic.co/t/updating-the-index-without-downtime/84773/5 "2017-06-05T12:35:54Z")

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