# Running without writing simulation.log file

**URL:** <https://community.gatling.io/t/running-without-writing-simulation-log-file/1742>\
**Category:** Gatling (Open-Source)\
**Created:** [November 25, 2014, 2:11pm UTC](https://community.gatling.io/t/running-without-writing-simulation-log-file/1742 "2014-11-25T14:11:56Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![Odin\_Hole\_Standal](https://avatars.discourse-cdn.com/v4/letter/o/7c8e57/32.png) [@Odin\_Hole\_Standal](https://community.gatling.io/u/Odin_Hole_Standal)\
**Post date:** [November 25, 2014, 2:11pm UTC](https://community.gatling.io/t/running-without-writing-simulation-log-file/1742/1 "2014-11-25T14:11:56Z")

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We are using gatling for stability testing, i.e we use it only for generating load and do not care about the output simulation log file.

Is there some way to avoid generating the simulation.log file?

/Odin

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**Author:** ![Excilys](https://avatars.discourse-cdn.com/v4/letter/e/8797f3/32.png) [@Excilys](https://community.gatling.io/u/Excilys)\
**Post date:** [November 25, 2014, 2:13pm UTC](https://community.gatling.io/t/running-without-writing-simulation-log-file/1742/2 "2014-11-25T14:13:50Z")

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Sure, remove “file” from the DataWriters list in gatling.conf + add “-nr” (no-reports) option so Gatling doesn’t try to parse it after the run.

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**Author:** ![Odin\_Hole\_Standal](https://avatars.discourse-cdn.com/v4/letter/o/7c8e57/32.png) [@Odin\_Hole\_Standal](https://community.gatling.io/u/Odin_Hole_Standal)\
**Post date:** [November 25, 2014, 2:26pm UTC](https://community.gatling.io/t/running-without-writing-simulation-log-file/1742/3 "2014-11-25T14:26:33Z")

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Wow, that’s what I call a quick reply. Thank you so much for the tip 🙂

/Odin

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**Author:** ![Excilys](https://avatars.discourse-cdn.com/v4/letter/e/8797f3/32.png) [@Excilys](https://community.gatling.io/u/Excilys)\
**Post date:** [November 25, 2014, 2:41pm UTC](https://community.gatling.io/t/running-without-writing-simulation-log-file/1742/4 "2014-11-25T14:41:12Z")

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You’re welcome.

This will be easier in upcoming 2.1: [https://github.com/gatling/gatling/issues/2408](https://github.com/gatling/gatling/issues/2408)

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**Author:** ![vagabond](https://dub1.discourse-cdn.com/flex013/user_avatar/community.gatling.io/vagabond/32/1153_2.png) [@vagabond](https://community.gatling.io/u/vagabond)\
**Post date:** [January 30, 2015, 6:24pm UTC](https://community.gatling.io/t/running-without-writing-simulation-log-file/1742/5 "2015-01-30T18:24:50Z")

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This doesn’t seem to work now.  
I’v changed  
#writers = “console, file”  
to #writers = “console”

and ran with -nr.

Still stimulation.log is created.  
Why?

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**Author:** ![Pierre\_DAL-PRA](https://avatars.discourse-cdn.com/v4/letter/p/ecccb3/32.png) [@Pierre\_DAL-PRA](https://community.gatling.io/u/Pierre_DAL-PRA)\
**Post date:** [January 30, 2015, 6:34pm UTC](https://community.gatling.io/t/running-without-writing-simulation-log-file/1742/6 "2015-01-30T18:34:30Z")

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You need to uncomment (remove the leading #) so that the new value is taken into account.

Cheers,

Pierre

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**Author:** ![slandelle](https://dub1.discourse-cdn.com/flex013/user_avatar/community.gatling.io/slandelle/32/4_2.png) [@slandelle](https://community.gatling.io/u/slandelle)\
**Post date:** [January 30, 2015, 6:40pm UTC](https://community.gatling.io/t/running-without-writing-simulation-log-file/1742/7 "2015-01-30T18:40:28Z")

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See warning in documentation: [http://gatling.io/docs/2.1.4/general/configuration.html#gatling-conf](http://gatling.io/docs/2.1.4/general/configuration.html#gatling-conf)

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**Author:** ![vagabond](https://dub1.discourse-cdn.com/flex013/user_avatar/community.gatling.io/vagabond/32/1153_2.png) [@vagabond](https://community.gatling.io/u/vagabond)\
**Post date:** [January 30, 2015, 7:18pm UTC](https://community.gatling.io/t/running-without-writing-simulation-log-file/1742/8 "2015-01-30T19:18:07Z")

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Thanks!  
Missed that.