# Improve search performance-Configuration Issue

**URL:** <https://discuss.elastic.co/t/improve-search-performance-configuration-issue/146548>\
**Category:** Elasticsearch\
**Created:** [August 29, 2018, 2:57pm UTC](https://discuss.elastic.co/t/improve-search-performance-configuration-issue/146548 "2018-08-29T14:57:18Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![snigdharao](https://avatars.discourse-cdn.com/v4/letter/s/4af34b/32.png) [@snigdharao](https://discuss.elastic.co/u/snigdharao)\
**Post date:** [August 29, 2018, 2:57pm UTC](https://discuss.elastic.co/t/improve-search-performance-configuration-issue/146548/1 "2018-08-29T14:57:18Z")

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I have indexed 85M documents and it doesnt respond fast .I have optimized my querys  
I am assuming i need to change my configuration, Could you please let me know what needs to be changed

 ![19%20AM](https://us1.discourse-cdn.com/elastic/original/3X/4/1/41c521f5f857e078deb8e7aec0c6a2d263fda896.png)

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**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [August 29, 2018, 3:08pm UTC](https://discuss.elastic.co/t/improve-search-performance-configuration-issue/146548/2 "2018-08-29T15:08:54Z")

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What does "not respond fast" mean in practice? What type of data and queries do you have? Are you always querying the full data set? What is the specification of the host Elasticsearch resides on?

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<div class="post-metadata">

**Author:** ![snigdharao](https://avatars.discourse-cdn.com/v4/letter/s/4af34b/32.png) [@snigdharao](https://discuss.elastic.co/u/snigdharao)\
**Post date:** [August 29, 2018, 3:12pm UTC](https://discuss.elastic.co/t/improve-search-performance-configuration-issue/146548/3 "2018-08-29T15:12:01Z")

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my autocomplete doesnot work fast.It works fine if the documents are 50M, but as the data grows its not fast

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**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [August 29, 2018, 3:15pm UTC](https://discuss.elastic.co/t/improve-search-performance-configuration-issue/146548/4 "2018-08-29T15:15:46Z")

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You will need to provide more details if someone is going to be able to help you. Answering the questions I asked would be a good start.

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<div class="post-metadata">

**Author:** ![snigdharao](https://avatars.discourse-cdn.com/v4/letter/s/4af34b/32.png) [@snigdharao](https://discuss.elastic.co/u/snigdharao)\
**Post date:** [August 29, 2018, 3:23pm UTC](https://discuss.elastic.co/t/improve-search-performance-configuration-issue/146548/5 "2018-08-29T15:23:09Z")

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So i have a query similar to this and the response is not fast ..It gets slow when more than 50 M documents are indexed  
GET indexname/\_search  
{  
"query":{  
"constant\_score": {  
"filter": {  
"bool":{  
"should":[  
{  
"term":{  
"agency\_name":"police department"  
}  
}]  
}  
}

}  
},  
"aggs":{  
"names":{  
"terms":{  
"field": "agency\_name.keyword"  
}  
}  
}  
}

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<div class="post-metadata">

**Author:** ![snigdharao](https://avatars.discourse-cdn.com/v4/letter/s/4af34b/32.png) [@snigdharao](https://discuss.elastic.co/u/snigdharao)\
**Post date:** [August 29, 2018, 3:24pm UTC](https://discuss.elastic.co/t/improve-search-performance-configuration-issue/146548/6 "2018-08-29T15:24:46Z")

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i see performance issue while using query\_string for my free text search usecase.  
should i be using multifield for that scenario?

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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:** [September 26, 2018, 3:24pm UTC](https://discuss.elastic.co/t/improve-search-performance-configuration-issue/146548/7 "2018-09-26T15:24:46Z")

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