# Error index.lifecycle.rollover\_alias

**URL:** <https://discuss.elastic.co/t/error-index-lifecycle-rollover-alias/240534>\
**Category:** Elasticsearch\
**Tags:** ilm-index-lifecycle-management\
**Created:** [July 9, 2020, 1:27pm UTC](https://discuss.elastic.co/t/error-index-lifecycle-rollover-alias/240534 "2020-07-09T13:27:14Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![impkos](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/impkos/32/54609_2.png) [@impkos](https://discuss.elastic.co/u/impkos)\
**Post date:** [July 9, 2020, 1:27pm UTC](https://discuss.elastic.co/t/error-index-lifecycle-rollover-alias/240534/1 "2020-07-09T13:27:14Z")

</div>

I configured ILM to automatically delete old indexes

Shows errors:

```auto
illegal_argument_exception: index.lifecycle.rollover_alias [ms001-backup03] does not point to index

```

What is index.lifecycle.rollover\_alias? And why is it needed?

---

<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:** [July 12, 2020, 11:45pm UTC](https://discuss.elastic.co/t/error-index-lifecycle-rollover-alias/240534/2 "2020-07-12T23:45:42Z")

</div>

From [Rollover | Elasticsearch Guide [8.11] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/current/ilm-rollover.html);

> - The `index.lifecycle.rollover_alias` must be configured as the alias to roll over.

---

<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:** [August 9, 2020, 11:45pm UTC](https://discuss.elastic.co/t/error-index-lifecycle-rollover-alias/240534/3 "2020-08-09T23:45:44Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.