# How does the Elasticsearch work internally?

**URL:** <https://discuss.elastic.co/t/how-does-the-elasticsearch-work-internally/342631>\
**Category:** Elasticsearch\
**Created:** [September 8, 2023, 4:31pm UTC](https://discuss.elastic.co/t/how-does-the-elasticsearch-work-internally/342631 "2023-09-08T16:31:37Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Sheharyar\_Khalid](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/sheharyar_khalid/32/112227_2.png) [@Sheharyar\_Khalid](https://discuss.elastic.co/u/Sheharyar_Khalid)\
**Post date:** [September 8, 2023, 4:31pm UTC](https://discuss.elastic.co/t/how-does-the-elasticsearch-work-internally/342631/1 "2023-09-08T16:31:37Z")

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Hi,

I am trying to understand how the core Elasticsearch algorithm works, especially how the inverted indexes and other data representations are created and how they are searched on query time. I was unable to find any resources online. **Can you guys point me to the resources so that I can better understand the core working algorithms?**

Best,  
Sheharyar

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**Author:** ![Priscilla\_Parodi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/priscilla_parodi/32/43047_2.png) [@Priscilla\_Parodi](https://discuss.elastic.co/u/Priscilla_Parodi)\
**Post date:** [October 1, 2023, 7:40pm UTC](https://discuss.elastic.co/t/how-does-the-elasticsearch-work-internally/342631/2 "2023-10-01T19:40:12Z")

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Hello @Sheharyar_Khalid,

Besides the [documentation](https://www.elastic.co/guide/en/elasticsearch/reference/current/elasticsearch-intro.html?), [videos](https://youtube.com/@OfficialElasticCommunity?feature=shared) and [Elastic training](https://www.elastic.co/training/elasticsearch-engineer?), you might find [this blog](https://www.elastic.co/blog/what-is-an-elasticsearch-index) helpful as a summary.

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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:** [October 29, 2023, 7:40pm UTC](https://discuss.elastic.co/t/how-does-the-elasticsearch-work-internally/342631/3 "2023-10-29T19:40:20Z")

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