# \_forcemerge increase actual doc count, is any chance to duplicate

**URL:** <https://discuss.elastic.co/t/forcemerge-increase-actual-doc-count-is-any-chance-to-duplicate/176826>\
**Category:** Elasticsearch\
**Created:** [April 15, 2019, 4:35am UTC](https://discuss.elastic.co/t/forcemerge-increase-actual-doc-count-is-any-chance-to-duplicate/176826 "2019-04-15T04:35:49Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Dilip\_Kumar](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dilip_kumar/32/15459_2.png) [@Dilip\_Kumar](https://discuss.elastic.co/u/Dilip_Kumar)\
**Post date:** [April 15, 2019, 4:35am UTC](https://discuss.elastic.co/t/forcemerge-increase-actual-doc-count-is-any-chance-to-duplicate/176826/1 "2019-04-15T04:35:49Z")

</div>

green open myindex ehZT7XVTTRt-aQq5dDukignw 5 1 117766002 2793806 25.7gb 12.8gb

I have 2 nodes cluster with default shards(5)

I have deleted/updated document that taking extra size on disk, (Count : 2793806)

when i should use forcemerge API and what should max\_num\_segments

localhost:9200/myindex/\_forcemerge?max\_num\_segments=1

what actually engine do , its increase some no actual count.

Is there any chance that after merge i will get duplicate doc

---

<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:** [April 15, 2019, 9:42pm UTC](https://discuss.elastic.co/t/forcemerge-increase-actual-doc-count-is-any-chance-to-duplicate/176826/2 "2019-04-15T21:42:02Z")

</div>

> [@Dilip\_Kumar](#):
>
> Is there any chance that after merge i will get duplicate doc

None.

> [@Dilip\_Kumar](#):
>
> its increase some no actual count.

It'd be useful if you showed the before and after output from `_cat/indices`.

---

<div class="post-metadata">

**Author:** ![Dilip\_Kumar](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dilip_kumar/32/15459_2.png) [@Dilip\_Kumar](https://discuss.elastic.co/u/Dilip_Kumar)\
**Post date:** [April 16, 2019, 9:22am UTC](https://discuss.elastic.co/t/forcemerge-increase-actual-doc-count-is-any-chance-to-duplicate/176826/3 "2019-04-16T09:22:01Z")

</div>

I have used force merged API then check i saw some doc count increase, how it is possible?

---

<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:** [May 14, 2019, 9:22am UTC](https://discuss.elastic.co/t/forcemerge-increase-actual-doc-count-is-any-chance-to-duplicate/176826/4 "2019-05-14T09:22:10Z")

</div>

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