# Custom fields appear on different index or globally?

**URL:** <https://discuss.elastic.co/t/custom-fields-appear-on-different-index-or-globally/145688>\
**Category:** Elasticsearch\
**Created:** [August 23, 2018, 9:14am UTC](https://discuss.elastic.co/t/custom-fields-appear-on-different-index-or-globally/145688 "2018-08-23T09:14:04Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [August 23, 2018, 10:44am UTC](https://discuss.elastic.co/t/custom-fields-appear-on-different-index-or-globally/145688/2 "2018-08-23T10:44:11Z")

</div>

Multiple files in the same directory are concatenated by Logstash, so all data will go to all output as described in[this thread](https://discuss.elastic.co/t/excess-data-in-elasticsearch/144860).

---

_[View the full topic](https://discuss.elastic.co/t/custom-fields-appear-on-different-index-or-globally/145688)._