# Running mutliple CONF file for logstash
**URL:** https://discuss.elastic.co/t/running-mutliple-conf-file-for-logstash/47139
**Category:** Logstash
**Created:** [April 12, 2016, 3:25pm UTC](https://discuss.elastic.co/t/running-mutliple-conf-file-for-logstash/47139 "2016-04-12T15:25:49Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@Sameer\_Panicker](https://discuss.elastic.co/u/Sameer_Panicker)
#### Post date: [April 12, 2016, 3:25pm UTC](https://discuss.elastic.co/t/running-mutliple-conf-file-for-logstash/47139/1 "2016-04-12T15:25:49Z")
I have mutliple log files present under different folder. To make things simpler and easy to manage, based on the patterns I have created 5 different conf files.
e,g.
logstash-Exception.conf,
logstash-eventsource.conf,
logstash-monitor.conf, etc.
I don't want to merge all the conf into one big file. I want to keep it separate.
My query is - If i ran all the conf files together, what issues i might face in higher env. or is there any other best practices that I should consider.
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### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [April 13, 2016, 1:41am UTC](https://discuss.elastic.co/t/running-mutliple-conf-file-for-logstash/47139/2 "2016-04-13T01:41:33Z")
Logstash will merge these all into a single file when it starts up, if they are held under the `conf.d` directory.
Are you using conditionals to make sure that the various inputs are only being processed via their respective filters and output?
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### Author:  [@Sameer\_Panicker](https://discuss.elastic.co/u/Sameer_Panicker)
#### Post date: [April 13, 2016, 3:57am UTC](https://discuss.elastic.co/t/running-mutliple-conf-file-for-logstash/47139/3 "2016-04-13T03:57:32Z")
Yes i do have conditions set.
But what did you mean by conf.d directory ?
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### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [April 13, 2016, 4:01am UTC](https://discuss.elastic.co/t/running-mutliple-conf-file-for-logstash/47139/4 "2016-04-13T04:01:26Z")
From [https://www.elastic.co/guide/en/logstash/current/command-line-flags.html](https://www.elastic.co/guide/en/logstash/current/command-line-flags.html)
> -f, --config CONFIGFILE
> Load the Logstash config from a specific file, directory, or a wildcard. If
> given a directory or wildcard, config files will be read from the directory in
> alphabetical order.
And `conf.d` is the adhoc standard for linux for such a config directory.
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### Author:  [@Sameer\_Panicker](https://discuss.elastic.co/u/Sameer_Panicker)
#### Post date: [April 13, 2016, 4:20am UTC](https://discuss.elastic.co/t/running-mutliple-conf-file-for-logstash/47139/5 "2016-04-13T04:20:50Z")
I am currently using -f command to start all my logstash conf.
I just wanted to know that if there is any overhead or issues doing this. If there isnt any, then I am good to go ahead.
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### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [April 13, 2016, 4:21am UTC](https://discuss.elastic.co/t/running-mutliple-conf-file-for-logstash/47139/6 "2016-04-13T04:21:32Z")
You should be fine.
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### Author:  [@Sameer\_Panicker](https://discuss.elastic.co/u/Sameer_Panicker)
#### Post date: [April 13, 2016, 4:22am UTC](https://discuss.elastic.co/t/running-mutliple-conf-file-for-logstash/47139/7 "2016-04-13T04:22:11Z")
Great. Thanks Mark 🙂
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 5:02am UTC](https://discuss.elastic.co/t/running-mutliple-conf-file-for-logstash/47139/8 "2017-07-06T05:02:37Z")