# IS elapsed Filter needs to be in single thread

**URL:** <https://discuss.elastic.co/t/is-elapsed-filter-needs-to-be-in-single-thread/173144>\
**Category:** Logstash\
**Created:** [March 20, 2019, 12:50pm UTC](https://discuss.elastic.co/t/is-elapsed-filter-needs-to-be-in-single-thread/173144 "2019-03-20T12:50:06Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![kcmenon](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kcmenon/32/41989_2.png) [@kcmenon](https://discuss.elastic.co/u/kcmenon)\
**Post date:** [March 20, 2019, 12:50pm UTC](https://discuss.elastic.co/t/is-elapsed-filter-needs-to-be-in-single-thread/173144/1 "2019-03-20T12:50:07Z")

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Is the elapsed filter plugin needs to be in single pipeline? I want to move the application to production soon. So don't have much data for verification. Do we need to specify single pipeline for elapsed to work.  
i.e. Do we need to specify pipeline.workers : 1 in logstash.yml.

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**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:** [March 20, 2019, 3:04pm UTC](https://discuss.elastic.co/t/is-elapsed-filter-needs-to-be-in-single-thread/173144/2 "2019-03-20T15:04:47Z")

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Yes, I do believe that is the case.

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<div class="post-metadata">

**Author:** ![kcmenon](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kcmenon/32/41989_2.png) [@kcmenon](https://discuss.elastic.co/u/kcmenon)\
**Post date:** [March 21, 2019, 11:38am UTC](https://discuss.elastic.co/t/is-elapsed-filter-needs-to-be-in-single-thread/173144/3 "2019-03-21T11:38:29Z")

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Then why its not specified in the elastic [elapsed filter documentation](https://www.elastic.co/guide/en/logstash/current/plugins-filters-elapsed.html)

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<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:** [March 21, 2019, 12:03pm UTC](https://discuss.elastic.co/t/is-elapsed-filter-needs-to-be-in-single-thread/173144/4 "2019-03-21T12:03:20Z")

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I do not know. Might be worth opening an issue against the docs or the plugin?

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [April 18, 2019, 12:03pm UTC](https://discuss.elastic.co/t/is-elapsed-filter-needs-to-be-in-single-thread/173144/5 "2019-04-18T12:03:37Z")

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