# High load on elastic search box

**URL:** <https://discuss.elastic.co/t/high-load-on-elastic-search-box/45996>\
**Category:** Elasticsearch\
**Created:** [March 31, 2016, 9:08pm UTC](https://discuss.elastic.co/t/high-load-on-elastic-search-box/45996 "2016-03-31T21:08:55Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Deep](https://avatars.discourse-cdn.com/v4/letter/d/ce7236/32.png) [@Deep](https://discuss.elastic.co/u/Deep)\
**Post date:** [March 31, 2016, 9:08pm UTC](https://discuss.elastic.co/t/high-load-on-elastic-search-box/45996/1 "2016-03-31T21:08:55Z")

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Hi,

I have a single node deployment of elastic search on a machine with 8 cores and 15 Gb ram. I am running ES with 8 Gb of RAM.

With a load of 1000 requests/sec I can see high load on the machine (it goes up to 20. I can see that in top) and the query is taking between 35-40 ms.

i also ran optimize on the index to reduce the number of segments to one. A summary of the index is specified below.

```
          "num_docs" : 48324,
          "deleted_docs" : 7,
          "size_in_bytes" : 951383048,
          "memory_in_bytes" : 21405365,
          "committed" : true,
          "search" : true,
          "version" : "4.8",
          "compound" : false

```

My query is a geo\_distance query. Need some help on what I can investigate to improve performance.

Regards,  
Deep

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**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 1, 2016, 4:23am UTC](https://discuss.elastic.co/t/high-load-on-elastic-search-box/45996/2 "2016-04-01T04:23:53Z")

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What version of ES are you on?

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<div class="post-metadata">

**Author:** ![Deep](https://avatars.discourse-cdn.com/v4/letter/d/ce7236/32.png) [@Deep](https://discuss.elastic.co/u/Deep)\
**Post date:** [April 1, 2016, 9:58am UTC](https://discuss.elastic.co/t/high-load-on-elastic-search-box/45996/3 "2016-04-01T09:58:49Z")

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Hi Mark,

We are using elastic search 1.2.2 and indexes are in memory.

Thanks

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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:** [July 5, 2017, 11:03pm UTC](https://discuss.elastic.co/t/high-load-on-elastic-search-box/45996/4 "2017-07-05T23:03:21Z")

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