# Elasticsearch Heapsize query

**URL:** <https://discuss.elastic.co/t/elasticsearch-heapsize-query/214537>\
**Category:** Elasticsearch\
**Created:** [January 10, 2020, 5:55am UTC](https://discuss.elastic.co/t/elasticsearch-heapsize-query/214537 "2020-01-10T05:55:58Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![vivektsb](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vivektsb/32/49029_2.png) [@vivektsb](https://discuss.elastic.co/u/vivektsb)\
**Post date:** [January 10, 2020, 5:55am UTC](https://discuss.elastic.co/t/elasticsearch-heapsize-query/214537/1 "2020-01-10T05:55:58Z")

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HI Team,

Can we configure heap size morethan 50 % of RAM Size.If we have 64 GB RAM can we configure \>32 GB say 48 GB .?

Regards,  
Vivek

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [January 10, 2020, 6:09am UTC](https://discuss.elastic.co/t/elasticsearch-heapsize-query/214537/2 "2020-01-10T06:09:55Z")

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It's not recommended.  
Also going above 30gb is a waste of resources as the jvm will use 64bits memory pointers instead of 32bits.

Why would you like to do this?

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**Author:** ![vivektsb](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vivektsb/32/49029_2.png) [@vivektsb](https://discuss.elastic.co/u/vivektsb)\
**Post date:** [January 10, 2020, 6:13am UTC](https://discuss.elastic.co/t/elasticsearch-heapsize-query/214537/3 "2020-01-10T06:13:13Z")

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HI David,

Thanks for support.To address my issue posted in the following topic.Here we are running huge queries and aggregations .

> [@Fatal Error in thread Elasticsearch](https://discuss.elastic.co/t/fatal-error-in-thread-elasticsearch/214360):
>
> Hi Team, We have 7 node Elasticsearch cluster we are facing sometimes facing the same issue in the following topic. Please find our cluster statistics please let us know are we doing something wrong with shard size or Heap size. { "\_nodes" : { "total" : 7, "successful" : 7, "failed" : 0 }, "cluster\_name" : "cul-prim-prod", "cluster\_uuid" : "X4QaFpncQeyyb\_hxC-G54Q", "timestamp" : 1578555450588, "status" : "green", "indices" : { "count" : 46, "shards" : { "total" : 292, "primari…

Regards,  
Vivek

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [February 7, 2020, 6:13am UTC](https://discuss.elastic.co/t/elasticsearch-heapsize-query/214537/4 "2020-02-07T06:13:16Z")

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