# What would happen if we send lot more requests than the elasticsearch cluster can handle concurrently

**URL:** <https://discuss.elastic.co/t/what-would-happen-if-we-send-lot-more-requests-than-the-elasticsearch-cluster-can-handle-concurrently/53309>\
**Category:** Elasticsearch\
**Created:** [June 20, 2016, 12:29pm UTC](https://discuss.elastic.co/t/what-would-happen-if-we-send-lot-more-requests-than-the-elasticsearch-cluster-can-handle-concurrently/53309 "2016-06-20T12:29:16Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![sarya](https://avatars.discourse-cdn.com/v4/letter/s/3ab097/32.png) [@sarya](https://discuss.elastic.co/u/sarya)\
**Post date:** [June 20, 2016, 12:29pm UTC](https://discuss.elastic.co/t/what-would-happen-if-we-send-lot-more-requests-than-the-elasticsearch-cluster-can-handle-concurrently/53309/1 "2016-06-20T12:29:16Z")

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What would happen if we send lot more requests than the elasticsearch cluster can handle concurrently like in batch procesing from a hadoop cluster . That is if we blast the elastic search cluster with high volume of requests. To what extent can it queue them and handle ? What would happen would it crash or would it be just slow ?

Thanks  
Subra

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**Author:** ![mainec](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mainec/32/5557_2.png) [@mainec](https://discuss.elastic.co/u/mainec)\
**Post date:** [June 20, 2016, 1:33pm UTC](https://discuss.elastic.co/t/what-would-happen-if-we-send-lot-more-requests-than-the-elasticsearch-cluster-can-handle-concurrently/53309/2 "2016-06-20T13:33:59Z")

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What types of requests are you talking about - e.g. search or indexing? If search, what types of queries?

Here are a few pointers to get started reading:

> **[Performance Considerations for Elasticsearch 2.0 Indexing
	  	 | Elastic](https://www.elastic.co/blog/elasticsearch-performance-indexing-2-0)**
>
> This blog post describes recent improvements to indexing in Elasticsearch 2.0 and how these changes impact turning for maximum indexing throughput.

> **[Six Ways to Crash Elasticsearch
	  	 | Elastic](https://www.elastic.co/blog/found-crash-elasticsearch)**
>
> As much as we love Elasticsearch, at Found we've seen customers crash their clusters in numerous ways. Mostly due to simple misunderstandings and usually the fixes are fairly straightforward. In our quest to enlighten new adopters and entertain the...

If you are planning to integrate Hadoop and ES, did you have a look at [https://www.elastic.co/products/hadoop](https://www.elastic.co/products/hadoop)

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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, 10:42pm UTC](https://discuss.elastic.co/t/what-would-happen-if-we-send-lot-more-requests-than-the-elasticsearch-cluster-can-handle-concurrently/53309/3 "2017-07-05T22:42:15Z")

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