# Is Update mapping API atomic?

**URL:** <https://discuss.elastic.co/t/is-update-mapping-api-atomic/354738>\
**Category:** Elasticsearch\
**Created:** [March 5, 2024, 1:28pm UTC](https://discuss.elastic.co/t/is-update-mapping-api-atomic/354738 "2024-03-05T13:28:28Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![svtd](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/svtd/32/125365_2.png) [@svtd](https://discuss.elastic.co/u/svtd)\
**Post date:** [March 5, 2024, 1:28pm UTC](https://discuss.elastic.co/t/is-update-mapping-api-atomic/354738/1 "2024-03-05T13:28:29Z")

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Hi!

If I send Update mapping request targeting alias will that be executed atomically?  
Or can if happen that part of the indices are adjusted and others not (e.g. because of some failure)?

Thank you,  
Svetlana

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<div class="post-metadata">

**Author:** ![svtd](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/svtd/32/125365_2.png) [@svtd](https://discuss.elastic.co/u/svtd)\
**Post date:** [March 12, 2024, 1:05pm UTC](https://discuss.elastic.co/t/is-update-mapping-api-atomic/354738/2 "2024-03-12T13:05:16Z")

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Any ideas on this?

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**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [March 12, 2024, 1:17pm UTC](https://discuss.elastic.co/t/is-update-mapping-api-atomic/354738/3 "2024-03-12T13:17:41Z")

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As far as I know this is not atomic.

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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:** [April 9, 2024, 1:17pm UTC](https://discuss.elastic.co/t/is-update-mapping-api-atomic/354738/4 "2024-04-09T13:17:48Z")

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Closed on April 9, 2024, 1:17pm UTC

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