# Hidden fields of message / gl2 fields

**URL:** <https://community.graylog.org/t/hidden-fields-of-message-gl2-fields/11989>\
**Category:** Graylog Central (peer support)\
**Tags:** pipeline-rules\
**Created:** [September 17, 2019, 1:46pm UTC](https://community.graylog.org/t/hidden-fields-of-message-gl2-fields/11989 "2019-09-17T13:46:19Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![vini](https://avatars.discourse-cdn.com/v4/letter/v/c77e96/32.png) [@vini](https://community.graylog.org/u/vini)\
**Post date:** [September 17, 2019, 1:46pm UTC](https://community.graylog.org/t/hidden-fields-of-message-gl2-fields/11989/1 "2019-09-17T13:46:19Z")

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Hello,  
I’m trying to optimize database space on my Graylog installation, and I have created some pipeline rules to remove fields and part of messages that I don’t need. When I run a search, I see the fields gl2\_remote\_ip, gl2\_remote\_port, gl2\_source\_input, gl2\_source\_input and gl2\_source\_node, but those fields are not part of the message. I create a pipeline to remove the gl2 fields, but they are still there on search, but not on the message. My questions are: These gl2 fields are stored on elasticsearch? If yes, there is a way to not store, or remove them? They are mandatory, like timestamp, source and message?

 ![graylog_message](https://us1.discourse-cdn.com/flex016/uploads/graylog/original/2X/6/6a836031a70c843a7adde962d3befa8f39627f2d.png)

I searched documentation and forums and did not find much information about these fields. Thanks in advance.

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**Author:** ![jan](https://sea2.discourse-cdn.com/flex016/user_avatar/community.graylog.org/jan/32/11_2.png) [@jan](https://community.graylog.org/u/jan)\
**Post date:** [September 17, 2019, 3:23pm UTC](https://community.graylog.org/t/hidden-fields-of-message-gl2-fields/11989/2 "2019-09-17T15:23:22Z")

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the `gl2_*` events are internal and you can’t avoid to have them.

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<div class="post-metadata">

**Author:** ![vini](https://avatars.discourse-cdn.com/v4/letter/v/c77e96/32.png) [@vini](https://community.graylog.org/u/vini)\
**Post date:** [September 17, 2019, 4:17pm UTC](https://community.graylog.org/t/hidden-fields-of-message-gl2-fields/11989/3 "2019-09-17T16:17:58Z")

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Ok, thank you for the answer.

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**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/graylog/original/3X/c/7/c7c09c6b5099570133d6502b83f50ba4430de5b6.png) [@system](https://community.graylog.org/u/system)\
**Post date:** [October 1, 2019, 4:17pm UTC](https://community.graylog.org/t/hidden-fields-of-message-gl2-fields/11989/4 "2019-10-01T16:17:59Z")

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