# JVM heap recommandation
**URL:** https://discuss.elastic.co/t/jvm-heap-recommandation/275416
**Category:** Elasticsearch
**Tags:** docker
**Created:** [June 9, 2021, 9:44am UTC](https://discuss.elastic.co/t/jvm-heap-recommandation/275416 "2021-06-09T09:44:11Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@rebug](https://discuss.elastic.co/u/rebug)
#### Post date: [June 9, 2021, 9:44am UTC](https://discuss.elastic.co/t/jvm-heap-recommandation/275416/1 "2021-06-09T09:44:12Z")
Hi,
I would like to know what is you recommendation for the JVM heap size of a elastic node ?
I run the elastic stack on docker, I will have approximatively 200 indices (200 shards) of 25gb.
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### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [June 9, 2021, 10:03am UTC](https://discuss.elastic.co/t/jvm-heap-recommandation/275416/2 "2021-06-09T10:03:23Z")
You will probably want to start at 16GB.
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### Author:  [@rebug](https://discuss.elastic.co/u/rebug)
#### Post date: [June 9, 2021, 10:07am UTC](https://discuss.elastic.co/t/jvm-heap-recommandation/275416/3 "2021-06-09T10:07:30Z")
Thank you for your response.
Just to be sure, the JVM heap requirements is proportional to my index size or more by indexing rate ?
I am making some test with juste 512mb of JVM heap and I don't have a problem for indexing more than 300.000 documents/minutes and no lag for searching them (but I have just 30gb of documents)
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 7, 2021, 10:08am UTC](https://discuss.elastic.co/t/jvm-heap-recommandation/275416/4 "2021-07-07T10:08:11Z")
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