# /var/log/upstart/logstash.log is too large

**URL:** <https://discuss.elastic.co/t/var-log-upstart-logstash-log-is-too-large/258690>\
**Category:** Logstash\
**Tags:** elastic-stack-security\
**Created:** [December 15, 2020, 9:59am UTC](https://discuss.elastic.co/t/var-log-upstart-logstash-log-is-too-large/258690 "2020-12-15T09:59:43Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![jinsu](https://avatars.discourse-cdn.com/v4/letter/j/45deac/32.png) [@jinsu](https://discuss.elastic.co/u/jinsu)\
**Post date:** [December 15, 2020, 9:59am UTC](https://discuss.elastic.co/t/var-log-upstart-logstash-log-is-too-large/258690/1 "2020-12-15T09:59:43Z")

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logstash version 7.9.3  
Ubuntu

when I start logstash service, the log file in /var/log/upstart/logstash.log will become too large in feu minutes, still I hava change the /path/logs to /data/logstash/.

How to change this log file in config file?

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<div class="post-metadata">

**Author:** ![TheHunter1](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/thehunter1/32/80190_2.png) [@TheHunter1](https://discuss.elastic.co/u/TheHunter1)\
**Post date:** [December 15, 2020, 10:30am UTC](https://discuss.elastic.co/t/var-log-upstart-logstash-log-is-too-large/258690/2 "2020-12-15T10:30:35Z")

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hello,

If you wanna reduce the number of logs stored you can use `log.level` in your logstash.yml to store only error logs

`log.level: error`

You can change error by: `fatal`, `error`, `warn`, `info`, `debug`, `trace`

for more information you can see: [https://www.elastic.co/guide/en/logstash/current/logstash-settings-file.html](https://www.elastic.co/guide/en/logstash/current/logstash-settings-file.html)

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<div class="post-metadata">

**Author:** ![jinsu](https://avatars.discourse-cdn.com/v4/letter/j/45deac/32.png) [@jinsu](https://discuss.elastic.co/u/jinsu)\
**Post date:** [December 15, 2020, 10:38am UTC](https://discuss.elastic.co/t/var-log-upstart-logstash-log-is-too-large/258690/3 "2020-12-15T10:38:31Z")

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My config like this:  
log.level: error  
path.logs: /data/logstash/log

## but there still have some logfile in dir /var/log/upstart/

root@cassandra6:/var/log/upstart# ls  
logstash.log logstash.log.1.gz logstash.log.2.gz logstash.log.3.gz

## And other logfile in /data/logstash/log as my config

root@cassandra6:/data/logstash/log# ls  
logstash-deprecation.log logstash-plain-2020-12-02-1.log.gz logstash-plain-2020-12-13-1.log.gz  
logstash-plain-2020-11-10-1.log.gz logstash-plain-2020-12-03-1.log.gz logstash-plain-2020-12-14-1.log.gz  
logstash-plain-2020-11-13-1.log.gz logstash-plain-2020-12-04-1.log.gz logstash-plain.log  
logstash-plain-2020-11-18-1.log.gz logstash-plain-2020-12-10-1.log.gz logstash-slowlog-plain.log  
logstash-plain-2020-11-19-1.log.gz logstash-plain-2020-12-11-1.log.gz  
logstash-plain-2020-12-01-1.log.gz logstash-plain-2020-12-12-1.log.gz

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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 12, 2021, 10:38am UTC](https://discuss.elastic.co/t/var-log-upstart-logstash-log-is-too-large/258690/4 "2021-01-12T10:38:38Z")

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