# Forcemerge on daily or on monthly

**URL:** <https://discuss.elastic.co/t/forcemerge-on-daily-or-on-monthly/226059>\
**Category:** Elasticsearch\
**Created:** [April 1, 2020, 2:12pm UTC](https://discuss.elastic.co/t/forcemerge-on-daily-or-on-monthly/226059 "2020-04-01T14:12:14Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Norman\_Khine](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/norman_khine/32/3342_2.png) [@Norman\_Khine](https://discuss.elastic.co/u/Norman_Khine)\
**Post date:** [April 1, 2020, 2:12pm UTC](https://discuss.elastic.co/t/forcemerge-on-daily-or-on-monthly/226059/1 "2020-04-01T14:12:14Z")

</div>

Hello,  
We are implementing an Index Lifecycle Policy each month to reindex our daily indexes into a monthly index using the \_reindex api

From [https://www.elastic.co/blog/managing-time-based-indices-efficiently](https://www.elastic.co/blog/managing-time-based-indices-efficiently) has good notes but wanted to get ideas as to, whether:

- Is it better to forcemerge the daily index at the end of each day and then reindex these at the end of each month?

- Reindex into the monthly index and then forcemerge this index?

We have IoT data coming from our devices with about ~2 million documents per day and I am looking at best ways to maintain these indexes.

Any advice is much appreciated

---

<div class="post-metadata">

**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:** [April 1, 2020, 4:52pm UTC](https://discuss.elastic.co/t/forcemerge-on-daily-or-on-monthly/226059/2 "2020-04-01T16:52:26Z")

</div>

Why not index into a monthly index instead and avoid reindexing?

---

<div class="post-metadata">

**Author:** ![Norman\_Khine](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/norman_khine/32/3342_2.png) [@Norman\_Khine](https://discuss.elastic.co/u/Norman_Khine)\
**Post date:** [April 1, 2020, 11:45pm UTC](https://discuss.elastic.co/t/forcemerge-on-daily-or-on-monthly/226059/3 "2020-04-01T23:45:49Z")

</div>

thanks, that makes sense

---

<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:** [April 29, 2020, 11:58pm UTC](https://discuss.elastic.co/t/forcemerge-on-daily-or-on-monthly/226059/4 "2020-04-29T23:58:59Z")

</div>

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