# Specify ILM process with cron syntax

**URL:** <https://discuss.elastic.co/t/specify-ilm-process-with-cron-syntax/315396>\
**Category:** Elasticsearch\
**Tags:** ilm-index-lifecycle-management\
**Created:** [September 28, 2022, 6:29pm UTC](https://discuss.elastic.co/t/specify-ilm-process-with-cron-syntax/315396 "2022-09-28T18:29:22Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![ebuildy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ebuildy/32/6070_2.png) [@ebuildy](https://discuss.elastic.co/u/ebuildy)\
**Post date:** [September 28, 2022, 6:29pm UTC](https://discuss.elastic.co/t/specify-ilm-process-with-cron-syntax/315396/1 "2022-09-28T18:29:22Z")

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Running a very busy cluster, we want to be able to specify when ILM tasks are running.

Example: we run Spark job during 2 jours, and sometimes shrink'ing happen, which completely kill search scroll performance (less shards).

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<div class="post-metadata">

**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:** [September 28, 2022, 9:25pm UTC](https://discuss.elastic.co/t/specify-ilm-process-with-cron-syntax/315396/2 "2022-09-28T21:25:18Z")

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There's no way to currently do this at this point, it might be worth putting in a feature request though.

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**Author:** ![dakrone](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dakrone/32/23351_2.png) [@dakrone](https://discuss.elastic.co/u/dakrone)\
**Post date:** [September 28, 2022, 10:00pm UTC](https://discuss.elastic.co/t/specify-ilm-process-with-cron-syntax/315396/3 "2022-09-28T22:00:35Z")

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We have an open issue for this at [Add the ability to specify when ILM step execution should occur · Issue #37325 · elastic/elasticsearch · GitHub](https://github.com/elastic/elasticsearch/issues/37325)

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [October 26, 2022, 10:00pm UTC](https://discuss.elastic.co/t/specify-ilm-process-with-cron-syntax/315396/4 "2022-10-26T22:00:49Z")

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