# Elastic search & hadoop for analytics

**URL:** <https://discuss.elastic.co/t/elastic-search-hadoop-for-analytics/16653>\
**Category:** Elasticsearch\
**Created:** [March 27, 2014, 6:21pm UTC](https://discuss.elastic.co/t/elastic-search-hadoop-for-analytics/16653 "2014-03-27T18:21:18Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![pranav\_amin](https://avatars.discourse-cdn.com/v4/letter/p/a183cd/32.png) [@pranav\_amin](https://discuss.elastic.co/u/pranav_amin)\
**Post date:** [March 27, 2014, 6:21pm UTC](https://discuss.elastic.co/t/elastic-search-hadoop-for-analytics/16653/1 "2014-03-27T18:21:18Z")

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Hi,

I'm thinking to use Elastic search and Hadoop as a combination for  
analytics. I know Elastic search has got some good stuff integrated with  
Hadoop which is great news.  
I have some questions on that -

1. Is using Elastic search - Hadoop Integrated apis Free to use or is it  
licensed?
2. Does that mean i need hadoop installation as well, is that free or  
licensed?
3. Where is the actual data stored In Elastic search or In hadoop or In  
both?
4. Where is the latest data, like if an App writes data to which data store  
it goes first, and to which data store it goes second OR is it something  
handled by ES-Hadoop api to replicate data from ES to Hadoop or vice versa?
5. Any request for search, does it go to ES or goes to Hadoop?
6. From architecture point i'm not sure on how the ES & Hadoop work  
together from Data Read and Write aspect, any use case scenario would be  
helpful?

Thanks in advance for answering.

Thanks  
Pranav.

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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, 1:40am UTC](https://discuss.elastic.co/t/elastic-search-hadoop-for-analytics/16653/2 "2017-07-06T01:40:05Z")

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Closed on July 6, 2017, 1:40am UTC