# How to duplicate message in 2 elasticsearch index

**URL:** <https://discuss.elastic.co/t/how-to-duplicate-message-in-2-elasticsearch-index/29403>\
**Category:** Logstash\
**Created:** [September 16, 2015, 12:24pm UTC](https://discuss.elastic.co/t/how-to-duplicate-message-in-2-elasticsearch-index/29403 "2015-09-16T12:24:47Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Clood](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/clood/32/1453_2.png) [@Clood](https://discuss.elastic.co/u/Clood)\
**Post date:** [September 16, 2015, 12:24pm UTC](https://discuss.elastic.co/t/how-to-duplicate-message-in-2-elasticsearch-index/29403/1 "2015-09-16T12:24:47Z")

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I have one input and i want to output it in 2 differents elasticsearch indexes

The fields in the 2 indexes must be different :

**input**  
field1 field2 field3 field3

**output**  
**index1** : field1, field2  
**index2** : field1, field3, field4

how can I do that

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 5:28am UTC](https://discuss.elastic.co/t/how-to-duplicate-message-in-2-elasticsearch-index/29403/2 "2017-07-06T05:28:58Z")

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