# Logstash is creating weird files

**URL:** <https://discuss.elastic.co/t/logstash-is-creating-weird-files/178620>\
**Category:** Logstash\
**Created:** [April 26, 2019, 10:13am UTC](https://discuss.elastic.co/t/logstash-is-creating-weird-files/178620 "2019-04-26T10:13:57Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![keysersozee](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/keysersozee/32/31563_2.png) [@keysersozee](https://discuss.elastic.co/u/keysersozee)\
**Post date:** [April 26, 2019, 10:13am UTC](https://discuss.elastic.co/t/logstash-is-creating-weird-files/178620/1 "2019-04-26T10:13:57Z")

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Hello,

I'm using Logstash 6.2.2 to ingest data coming from another system and then to send them to a REST endpoint via the HTTP output plugin.

When I have a large volume to handle (about 1 000 000 events in few minutes) I found out some created files under /tmp  
For example `/tmp/puma20190426-1s8d4en` and when opening it I found my events written there ..

Is this a side effect ? What are thoses files, and why Logstash creates them ?

Note: I'm using the persistent queue feature configured under`/var/lib/logstash/queue/` , so I think Logstash should write events there and not else where

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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:** [May 24, 2019, 10:14am UTC](https://discuss.elastic.co/t/logstash-is-creating-weird-files/178620/2 "2019-05-24T10:14:00Z")

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