# Analysis large log data in Elasticsearch

**URL:** <https://discuss.elastic.co/t/analysis-large-log-data-in-elasticsearch/231319>\
**Category:** Elasticsearch\
**Created:** [May 6, 2020, 10:28am UTC](https://discuss.elastic.co/t/analysis-large-log-data-in-elasticsearch/231319 "2020-05-06T10:28:39Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![lioaslan](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/lioaslan/32/67806_2.png) [@lioaslan](https://discuss.elastic.co/u/lioaslan)\
**Post date:** [May 6, 2020, 10:28am UTC](https://discuss.elastic.co/t/analysis-large-log-data-in-elasticsearch/231319/1 "2020-05-06T10:28:40Z")

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Hi,  
Like the title says, I have a task that I have to analysis a large data with Elasticsearch.  
I know that the more data's larger, the more ram use.  
I find out a way to reduce using ram.  
I make 2 indices:

- First index for analysis log today
- Second index for analysis for all day system running  
How to merge first index into second index AND how to reset the first index automatically everyday?  
Thanks for any helps and sorry for my poor English

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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:** [June 3, 2020, 10:28am UTC](https://discuss.elastic.co/t/analysis-large-log-data-in-elasticsearch/231319/2 "2020-06-03T10:28:41Z")

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Closed on June 3, 2020, 10:28am UTC

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