# Elasticsearch become slow

**URL:** https://discuss.elastic.co/t/elasticsearch-become-slow/21972
**Category:** Elasticsearch
**Created:** [February 4, 2015, 11:24am UTC](https://discuss.elastic.co/t/elasticsearch-become-slow/21972 "2015-02-04T11:24:57Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![appa](https://avatars.discourse-cdn.com/v4/letter/a/b9bd4f/32.png) [@appa](https://discuss.elastic.co/u/appa)
#### Post date: [February 4, 2015, 11:24am UTC](https://discuss.elastic.co/t/elasticsearch-become-slow/21972/1 "2015-02-04T11:24:57Z")

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Hello Team,

I am having elasticsearch cluster with 7 nodes and 10 indexes. Each node is having following configuration ...

Node Config Info  
-16GB RAM  
-8Core  
-500GB Storage

Custer configuration  
=1 - Front end + master node  
=1 - Front end  
=5 - Data node.

Index Info  
Index1 - 9 are small, they are having max 3000 documents each. 5 shards and 1 replica.  
Index10 - is very big its having 80 million documents. 10 shards and 1 replica. It has having three types url,type1 and type2. Type 2 is child type of url. Everyday I am updating child records and they need to be update.

Problems

-Search is slow.  
-Parent - child search is slow.  
-Indexing child records also slow.  
-After restart cluster taking time to recover.

Thanks in advance, please share your thoughts on this.

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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 6, 2017, 12:35am UTC](https://discuss.elastic.co/t/elasticsearch-become-slow/21972/2 "2017-07-06T00:35:00Z")

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