# Export data from hadoop to elastic using java
**URL:** https://discuss.elastic.co/t/export-data-from-hadoop-to-elastic-using-java/193056
**Category:** Elasticsearch
**Created:** [July 31, 2019, 7:39am UTC](https://discuss.elastic.co/t/export-data-from-hadoop-to-elastic-using-java/193056 "2019-07-31T07:39:52Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@examin](https://discuss.elastic.co/u/examin)
#### Post date: [July 31, 2019, 7:39am UTC](https://discuss.elastic.co/t/export-data-from-hadoop-to-elastic-using-java/193056/1 "2019-07-31T07:39:52Z")
I have to do some pre-processing( denormalization) of hadoop tables before inserting it to ElasticSearch. My plan is to use java to do this task. Could you please guide me how to do this, Or please share some doc link etc.,
---
### Author:  [@spinscale](https://discuss.elastic.co/u/spinscale)
#### Post date: [August 1, 2019, 12:42pm UTC](https://discuss.elastic.co/t/export-data-from-hadoop-to-elastic-using-java/193056/2 "2019-08-01T12:42:08Z")
There is [Elasticsearch for Apache Hadoop](https://www.elastic.co/guide/en/elasticsearch/hadoop/7.2/reference.html) - maybe this can help you. If not, please ask some more specific questions what problems you are encountering. Thank you!
--Alex
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [August 29, 2019, 12:42pm UTC](https://discuss.elastic.co/t/export-data-from-hadoop-to-elastic-using-java/193056/3 "2019-08-29T12:42:11Z")
This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.