# Some questions about ElasticSearch

**URL:** <https://discuss.elastic.co/t/some-questions-about-elasticsearch/54536>\
**Category:** Elasticsearch\
**Created:** [July 1, 2016, 1:38pm UTC](https://discuss.elastic.co/t/some-questions-about-elasticsearch/54536 "2016-07-01T13:38:49Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Fabien\_Sarlat](https://avatars.discourse-cdn.com/v4/letter/f/7ab992/32.png) [@Fabien\_Sarlat](https://discuss.elastic.co/u/Fabien_Sarlat)\
**Post date:** [July 1, 2016, 1:38pm UTC](https://discuss.elastic.co/t/some-questions-about-elasticsearch/54536/1 "2016-07-01T13:38:49Z")

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Hello everyone !

I have some questions on how work ES 😁

I have for now a website, hosted on a shared server (Ovh) and i'm planning to move to a dedicated server or google app engine.

My first question is, can i host my website and ES on the same server without performance problems ?  
Or it's better to separate them (so i will need two dedicated server).

Also, our website is based in France, but we will deploy to uk and spain. Can the server host the website, with 3 different database (fr, uk, spain) and ES (working for the 3 website) without problems ? Or, again, it's better to separate the website and ES ?

Second question is on how work ES.  
In my local environment, i build ES like this :  
-\> cluster -\> node-fr -\> users -\> id users (so the path is node-fr/users/1)  
-\> something -\> id  
-\> something else -\> id

"node-fr/users" will contain all my french users, "node-fr/something" will contain all my french something, etc ..  
So when i will deploy in uk, i think on doing another node for the english users (node-uk for example).  
In the end, i will have a node per website in the same cluster. Do i think right ?

Because if my cluster is down for x reasons, i will have no more search for all website 😅  
It's better to do a cluster per website with one node ? In that way, if a cluster is down, only the search for one website won't work. But i don't know if it's useful to do one cluster with only one node.

Last question : shards  
If i understand well, the documents are in the shards.  
What is the meaning of having many shards ? It's better to have one (all the documents will be inside) or more shards to equally put the documents inside ?

Thanks for the brave one who read this 😀

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [July 1, 2016, 4:47pm UTC](https://discuss.elastic.co/t/some-questions-about-elasticsearch/54536/2 "2016-07-01T16:47:56Z")

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Hey Fabien. I [answered it in the french section](https://discuss.elastic.co/t/infrastructure-delasticsearch/54529/2) where you posted first.

Nice translation effort 🙂

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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, 10:38pm UTC](https://discuss.elastic.co/t/some-questions-about-elasticsearch/54536/3 "2017-07-05T22:38:53Z")

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