# Search Latency when adding a Node or when a Node goes down

**URL:** https://discuss.elastic.co/t/search-latency-when-adding-a-node-or-when-a-node-goes-down/9986
**Category:** Elasticsearch
**Created:** [December 7, 2012, 2:10pm UTC](https://discuss.elastic.co/t/search-latency-when-adding-a-node-or-when-a-node-goes-down/9986 "2012-12-07T14:10:08Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![gman](https://avatars.discourse-cdn.com/v4/letter/g/d9b06d/32.png) [@gman](https://discuss.elastic.co/u/gman)
#### Post date: [December 7, 2012, 2:10pm UTC](https://discuss.elastic.co/t/search-latency-when-adding-a-node-or-when-a-node-goes-down/9986/1 "2012-12-07T14:10:08Z")

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Hello Folks,  
I am new to ElasticSearch and exploring for use in our Electronic  
Products.  
Approximately 60 million documents from 10-12 sources, ~100 fields and ~QPS  
of 50.  
Please share any information on impacts to search/indexing latency when a  
Node is added or goes down for any reason.

regards,  
girish

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### Author: ![otisg](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/otisg/32/492_2.png) [@otisg](https://discuss.elastic.co/u/otisg)
#### Post date: [December 10, 2012, 10:35pm UTC](https://discuss.elastic.co/t/search-latency-when-adding-a-node-or-when-a-node-goes-down/9986/2 "2012-12-10T22:35:58Z")

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General Q, general A 🙂

- Fewer nodes -\> slower queries
- Node down -\> insufficient replicas -\> shard shuffling -\> disk + network  
IO -\> slower queries

## Otis

ELASTICSEARCH Performance Monitoring - [Sematext Monitoring | Infrastructure Monitoring Service](http://sematext.com/spm/index.html)  
Search Analytics - [Cloud Monitoring Tools & Services | Sematext](http://sematext.com/search-analytics/index.html)

On Friday, December 7, 2012 9:10:08 AM UTC-5, gman wrote:

> Hello Folks,  
> I am new to Elasticsearch and exploring for use in our Electronic  
> Products.  
> Approximately 60 million documents from 10-12 sources, ~100 fields and  
> ~QPS of 50.  
> Please share any information on impacts to search/indexing latency when a  
> Node is added or goes down for any reason.
> 
> regards,  
> girish

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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, 3:00am UTC](https://discuss.elastic.co/t/search-latency-when-adding-a-node-or-when-a-node-goes-down/9986/3 "2017-07-06T03:00:28Z")

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