# I have a problem help me

**URL:** <https://discuss.elastic.co/t/i-have-a-problem-help-me/296088>\
**Category:** Elasticsearch\
**Created:** [February 2, 2022, 4:15pm UTC](https://discuss.elastic.co/t/i-have-a-problem-help-me/296088 "2022-02-02T16:15:05Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![slowup](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/slowup/32/99097_2.png) [@slowup](https://discuss.elastic.co/u/slowup)\
**Post date:** [February 2, 2022, 4:15pm UTC](https://discuss.elastic.co/t/i-have-a-problem-help-me/296088/1 "2022-02-02T16:15:05Z")

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It is an index where data is continuously flowing in. As a result, merges continue to occur, the query cache goes down, and as a result, I/O increases again. What should I do?

below is 1 hour

 ![image](https://us1.discourse-cdn.com/elastic/original/3X/2/6/264f1c3a44ef5ea61ef6a0cae6ad318f15f98d86.png)

 ![image](https://us1.discourse-cdn.com/elastic/original/3X/9/7/975ba418750ed2a5aa4b6e79a3c3f83d655717e5.png)

 ![image](https://us1.discourse-cdn.com/elastic/original/3X/b/3/b319313d534d55d1e6d583055ae4deef4a5ff512.png)

 ![image](https://us1.discourse-cdn.com/elastic/original/3X/7/2/72578404367e389bf62fd3218c7de7f7fea40e96.png)

below is 3 hour

 ![image](https://us1.discourse-cdn.com/elastic/original/3X/6/4/64d983e453b43a4e3072a5b3c7c3e4f20631429d.png)

 ![image](https://us1.discourse-cdn.com/elastic/original/3X/7/a/7a52f24fcc15803d801d38562c5f72c8a4b31b14.png)

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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:** [February 2, 2022, 8:40pm UTC](https://discuss.elastic.co/t/i-have-a-problem-help-me/296088/2 "2022-02-02T20:40:57Z")

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Is it causing issues? What are you seeing as the problem?

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<div class="post-metadata">

**Author:** ![slowup](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/slowup/32/99097_2.png) [@slowup](https://discuss.elastic.co/u/slowup)\
**Post date:** [February 3, 2022, 8:28am UTC](https://discuss.elastic.co/t/i-have-a-problem-help-me/296088/3 "2022-02-03T08:28:12Z")

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@warkolm  
The cause is the index that keeps coming in. So it's merged, and the cache goes down because of the merge. Is there any solution?

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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:** [February 3, 2022, 8:39am UTC](https://discuss.elastic.co/t/i-have-a-problem-help-me/296088/4 "2022-02-03T08:39:20Z")

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No, that's typical behaviour for Elasticsearch and it's not something that needs solving.

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<div class="post-metadata">

**Author:** ![slowup](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/slowup/32/99097_2.png) [@slowup](https://discuss.elastic.co/u/slowup)\
**Post date:** [February 3, 2022, 11:43am UTC](https://discuss.elastic.co/t/i-have-a-problem-help-me/296088/5 "2022-02-03T11:43:33Z")

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@warkolm

You're right, this is a common thing in ES, but I was wondering if there was a way to tune it...but it's not.

Could it be better to use "index.store.preload": ["nvd", "dvd"] ?

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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:** [March 3, 2022, 11:44am UTC](https://discuss.elastic.co/t/i-have-a-problem-help-me/296088/6 "2022-03-03T11:44:30Z")

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