I ran a performance test, and in the beginning, everything is working fine, but as the load becomes higher, seems my internet connection is chocking, and subsequent requests are failing, already after 60 seconds…
Examples:
11:10:27.830 [WARN ] i.g.h.a.AsyncHandler - Request ‘request_24’ failed: Request reached time out of 60000 ms after 60001 ms
11:10:27.830 [WARN ] i.g.h.a.AsyncHandlerActor - Request ‘request_24’ failed : Request reached time out of 60000 ms after 60001 ms
11:10:27.838 [WARN ] i.g.h.a.AsyncHandler - Request ‘request_28’ failed: Request reached time out of 60000 ms after 63142 ms
11:10:27.838 [WARN ] i.g.h.a.AsyncHandlerActor - Request ‘request_28’ failed : Request reached time out of 60000 ms after 63142 ms
11:10:27.868 [WARN ] i.g.h.a.AsyncHandler - Request ‘request_6’ failed: Request reached time out of 60000 ms after 63139 ms
These are all static image sources, cached by our web server (Varnish alike caching), so should be served quite fast. Also don’t see the requests coming through on our web server (access log).
As the test proceeds, the list of timeouts get bigger… Also got a big amount of timeouts on www.google.com/ga.js (which normally has high availability). So my tests aren’t reliable at the moment, and showing wrong results by either hardware limitations (poor performing switch), software/os, … Also tested from home and experienced the same behaviour. Don’t think network DDOS protection is kicking in, because I’d expect “Connection Refused” messages to show.
While running the performance test, can’t surf the web, the site I’m testing loads loads very slow, but when I test the website using my mobile 3G connection (different network), site response is still very good! So clearly Gatling is causing my internet connection to choke.
Load is fairly low: rampRate(1 usersPerSec) to(7 usersPerSec) during(5 minutes)
Any recommendations?
Running on my Mac OSX 10.9.3
Using “gatling-charts-highcharts-2.0.0-M3a”
java version “1.7.0_55”
Java™ SE Runtime Environment (build 1.7.0_55-b13)
Java HotSpot™ 64-Bit Server VM (build 24.55-b03, mixed mode)