# Change index.store.type in the fly

**URL:** <https://discuss.elastic.co/t/change-index-store-type-in-the-fly/126646>\
**Category:** Elasticsearch\
**Created:** [April 3, 2018, 11:25pm UTC](https://discuss.elastic.co/t/change-index-store-type-in-the-fly/126646 "2018-04-03T23:25:55Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Melvin\_Vega](https://avatars.discourse-cdn.com/v4/letter/m/5f8ce5/32.png) [@Melvin\_Vega](https://discuss.elastic.co/u/Melvin_Vega)\
**Post date:** [April 3, 2018, 11:25pm UTC](https://discuss.elastic.co/t/change-index-store-type-in-the-fly/126646/1 "2018-04-03T23:25:55Z")

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Hi my name is Melvin Vega... i am relatively new in elastic search... i developed a search engine based on lucene from scratch... But that was 3 years ago... we decided to upgrade our system to a new version.. and when i just do some research about some framework to use.. i found elasticsearch... a super cool search engine framework.. So i started the new development. and one year later we have the new version of our search engine system.

In our development server all the things work just fine.. but when a just upload this project to our godaddy dedicated server we find a unpleasant surprise... Godaddy people doesnt allow to their users to update the virtual memory max\_map\_count parameter and that was just a disaster for me... A lot of documents indexed and we have this issue... apparently by default elasticsearch decided to use mmap and for me thats good because like i said in our development server is working fine..

But well, going forward.. my question is this one... If i change the index.store.type in the elasticsearch.yml config file... the max\_map\_count Would this option be ignored? because if so, it would be a great relief.

The other question is ... if the answer is that elastic will ignore the max\_map\_count validation.... once changed the store type... would it be necessary to re-index all the documents?

Thats it.. please help me with this one you guys... i am sure that you have the experience....

Thanks in advance

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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:** [May 1, 2018, 11:26pm UTC](https://discuss.elastic.co/t/change-index-store-type-in-the-fly/126646/2 "2018-05-01T23:26:01Z")

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Closed on May 1, 2018, 11:26pm UTC

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