# Logstash not closing threads

**URL:** <https://discuss.elastic.co/t/logstash-not-closing-threads/213156>\
**Category:** Logstash\
**Tags:** docker\
**Created:** [December 27, 2019, 8:12am UTC](https://discuss.elastic.co/t/logstash-not-closing-threads/213156 "2019-12-27T08:12:27Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![sderungs](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/sderungs/32/97134_2.png) [@sderungs](https://discuss.elastic.co/u/sderungs)\
**Post date:** [December 27, 2019, 8:12am UTC](https://discuss.elastic.co/t/logstash-not-closing-threads/213156/1 "2019-12-27T08:12:27Z")

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Hi

We're running an Elastic stack on version 7.3.0 with 2 Logstash instances on dedicated VMs each.  
The problem we're facing is that Logstash's thread count has grown over 4000 threads over the past 3-4 weeks or so. It looks like Logstash doesn't close old threads? Or do you have any other explanation? The problem is that our monitoring system is triggering an alarm.

[Our logstash config](https://gist.github.com/sderungs/27fdf719dc2db61ff54f31460aa4de47)

Cheers  
Stefan

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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:** [January 24, 2020, 8:12am UTC](https://discuss.elastic.co/t/logstash-not-closing-threads/213156/2 "2020-01-24T08:12:28Z")

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This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.

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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:** [January 24, 2020, 8:12am UTC](https://discuss.elastic.co/t/logstash-not-closing-threads/213156/3 "2020-01-24T08:12:28Z")

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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:** [November 4, 2022, 7:38am UTC](https://discuss.elastic.co/t/logstash-not-closing-threads/213156/4 "2022-11-04T07:38:44Z")

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