Hello,

I'm developing a real-time news recommendation engine and was hoping to be 
able to use ElasticSearch.
The idea is to store tags for each user in a database 
("sport","football","tennis","Olympics","recommender systems", ...).
I would add the news articles to elasticsearch and use the tags to 
automatically query ES to generate the recommendations.

I still have a few questions:
- Is ES able to do this in (near) real-time ?
- Is ES able to handle big (huge) queries ? I would like to send all the 
tags for the user to ES, each with it's own weight and would like to 
receive a list of news articles that match the users interests.   

Thanks

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