[Gatling 3.0.0 RC4] memory leak?

I have upgraded to Gatling 3.0.0 RC4 today and executed one of my scenarios. I have executed this scenario many times in Gatling 2.3.1 without any problem. In Gatling 3.0.0 RC4 I ended up with OOM after approx. 25 minutes.

java.lang.OutOfMemoryError: Java heap space
Dumping heap to java_pid24502.hprof …
Heap dump file created [1302179725 bytes in 11.259 secs]

Load setting - nothing fancy …

setUp(scn.inject(rampUsersPerSec(1) to 5 during (30 minutes)))
.uniformPauses(50) // percent

Take a look at heap dump - looks like none of the sessions are being garbage collected …

The scenario is pretty standard, the only extras I can think of are in configuration: output to Graphite is ON and logging of failed responses is ON. Also, I use 2 feeders (CSV and custom Range).

Happy to provide more details, just tell me what you need.


Could you please share your heap dump?

Gentle ping

I will send a download link on your email. Do not want to make it public.

Dne pátek 12. října 2018 14:50:05 UTC+2 Stéphane Landelle napsal(a):

Hi. Have you resolved this issue? What was the resolution?