# How can move Elasticsearch index data to RDBMS

**URL:** <https://discuss.elastic.co/t/how-can-move-elasticsearch-index-data-to-rdbms/241093>\
**Category:** Elasticsearch\
**Created:** [July 14, 2020, 8:19am UTC](https://discuss.elastic.co/t/how-can-move-elasticsearch-index-data-to-rdbms/241093 "2020-07-14T08:19:47Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![hyungsun\_lim](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hyungsun_lim/32/50790_2.png) [@hyungsun\_lim](https://discuss.elastic.co/u/hyungsun_lim)\
**Post date:** [July 14, 2020, 8:19am UTC](https://discuss.elastic.co/t/how-can-move-elasticsearch-index-data-to-rdbms/241093/1 "2020-07-14T08:19:47Z")

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In order to join two indexes, i use spark-elasticsearch.

However, this connecter takes so long time to join data.

ex) A: 1,000,000 docs join B:500,000  
makes 200,000 docs but it takes to long time. (2 hours)

So i decided to save elasticsearch documents to RDBMS.

Could you recommend the method to save data from elasticsearch to rdbms?

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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:** [August 11, 2020, 8:19am UTC](https://discuss.elastic.co/t/how-can-move-elasticsearch-index-data-to-rdbms/241093/2 "2020-08-11T08:19:50Z")

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