# Drop fields generated by beats

**URL:** <https://discuss.elastic.co/t/drop-fields-generated-by-beats/180565>\
**Category:** Logstash\
**Created:** [May 10, 2019, 1:17pm UTC](https://discuss.elastic.co/t/drop-fields-generated-by-beats/180565 "2019-05-10T13:17:52Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Ludovic9](https://avatars.discourse-cdn.com/v4/letter/l/977dab/32.png) [@Ludovic9](https://discuss.elastic.co/u/Ludovic9)\
**Post date:** [May 10, 2019, 1:17pm UTC](https://discuss.elastic.co/t/drop-fields-generated-by-beats/180565/1 "2019-05-10T13:17:52Z")

</div>

Hello,  
I'm using filebeats on windows to sent a csv file.

It's working well but, in Kibana, I see a lot of fields I don't use so I would like to drop them.  
The fields are : host.os.build, host.os.name, host.os.family etc...

I have done a test with another field no created by beats, it works.  
So it's possible to drop system fields ?

Thank you

---

<div class="post-metadata">

**Author:** ![A\_B](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/a_b/32/17104_2.png) [@A\_B](https://discuss.elastic.co/u/A_B)\
**Post date:** [May 10, 2019, 1:53pm UTC](https://discuss.elastic.co/t/drop-fields-generated-by-beats/180565/2 "2019-05-10T13:53:29Z")

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This is how I remove some unneeded fields in Logstash

```
  #############
  # Remove redundant fields
  mutate {
    remove_field => ["[offset]", "[@version]", "[jsonPayload][res][header]", "[jsonPayload][timestamp]" ]
  }
  #############

```

This goes into the `filter` section, in case that was unclear 😃

---

<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:** [June 7, 2019, 1:53pm UTC](https://discuss.elastic.co/t/drop-fields-generated-by-beats/180565/3 "2019-06-07T13:53:31Z")

</div>

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