# HttpEngine - Couldn't execute warm up request http://gatling.io **URL:** \ **Category:** Gatling (Open-Source)\ **Created:** [September 7, 2016, 6:34am UTC](https://community.gatling.io/t/httpengine-couldnt-execute-warm-up-request-http-gatling-io/3243 "2016-09-07T06:34:29Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Swapnil\_Kotwal](https://avatars.discourse-cdn.com/v4/letter/s/7993a0/32.png) [@Swapnil\_Kotwal](https://community.gatling.io/u/Swapnil_Kotwal)\ **Post date:** [September 7, 2016, 6:34am UTC](https://community.gatling.io/t/httpengine-couldnt-execute-warm-up-request-http-gatling-io/3243/1 "2016-09-07T06:34:29Z")
Any idea why I’m getting this error? i.g.h.a.HttpEngine - Couldn’t execute warm up request [http://gatling.io](http://gatling.io) java.util.concurrent.TimeoutException: Request timeout to [gatling.io/192.30.252.153:80](http://gatling.io/192.30.252.153:80) after 1000ms … 6 common frames omitted Wrapped by: java.util.concurrent.ExecutionException: java.util.concurrent.TimeoutException: Request timeout to [gatling.io/192.30.252.153:80](http://gatling.io/192.30.252.153:80) after 1000ms at org.asynchttpclient.netty.NettyResponseFuture.abort(NettyResponseFuture.java:239) at org.asynchttpclient.netty.request.NettyRequestSender.abort(NettyRequestSender.java:396) at org.asynchttpclient.netty.timeout.TimeoutTimerTask.expire(TimeoutTimerTask.java:43) at org.asynchttpclient.netty.timeout.RequestTimeoutTimerTask.run(RequestTimeoutTimerTask.java:48) at io.netty.util.HashedWheelTimer$HashedWheelTimeout.expire(HashedWheelTimer.java:581) at io.netty.util.HashedWheelTimer$HashedWheelBucket.expireTimeouts(HashedWheelTimer.java:655) at io.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:367) at java.lang. Swapnil. ---
**Author:** ![CyberNinja](https://avatars.discourse-cdn.com/v4/letter/c/f6c823/32.png) [@CyberNinja](https://community.gatling.io/u/CyberNinja)\ **Post date:** [September 7, 2016, 6:41am UTC](https://community.gatling.io/t/httpengine-couldnt-execute-warm-up-request-http-gatling-io/3243/2 "2016-09-07T06:41:45Z")
Do you have active internet connection? 🙂 ---
**Author:** ![Swapnil\_Kotwal](https://avatars.discourse-cdn.com/v4/letter/s/7993a0/32.png) [@Swapnil\_Kotwal](https://community.gatling.io/u/Swapnil_Kotwal)\ **Post date:** [September 7, 2016, 7:17am UTC](https://community.gatling.io/t/httpengine-couldnt-execute-warm-up-request-http-gatling-io/3243/3 "2016-09-07T07:17:35Z")
Yes, my Micro Service tests are working fine. I have a no issue as such which can block me here but I just wondered why I’m getting this exception. ---
**Author:** ![Oliver\_Schrenk](https://avatars.discourse-cdn.com/v4/letter/o/df705f/32.png) [@Oliver\_Schrenk](https://community.gatling.io/u/Oliver_Schrenk)\ **Post date:** [September 22, 2016, 1:13pm UTC](https://community.gatling.io/t/httpengine-couldnt-execute-warm-up-request-http-gatling-io/3243/4 "2016-09-22T13:13:08Z")
Same here. Why does Gatling call home to warm up the cache? And why does it fail? (yes, I do have a working internet connection) ---
**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:** [September 22, 2016, 1:17pm UTC](https://community.gatling.io/t/httpengine-couldnt-execute-warm-up-request-http-gatling-io/3243/5 "2016-09-22T13:17:51Z")
[http://gatling.io/docs/2.2.2/http/http\_protocol.html#automatic-warm-up](http://gatling.io/docs/2.2.2/http/http_protocol.html#automatic-warm-up) Sometimes, depending on your host and network, this request can time out. And the timeout is pretty low to not hurt start up time, all the more if you’re actually being a proxy and Gatling can’t reach the internet. Then, this is a DEBUG log. ---
**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:** [September 22, 2016, 1:18pm UTC](https://community.gatling.io/t/httpengine-couldnt-execute-warm-up-request-http-gatling-io/3243/6 "2016-09-22T13:18:24Z")
In the end, it all boils down to reading the doc… ---
**Author:** ![Swapnil\_Kotwal](https://avatars.discourse-cdn.com/v4/letter/s/7993a0/32.png) [@Swapnil\_Kotwal](https://community.gatling.io/u/Swapnil_Kotwal)\ **Post date:** [September 22, 2016, 1:42pm UTC](https://community.gatling.io/t/httpengine-couldnt-execute-warm-up-request-http-gatling-io/3243/7 "2016-09-22T13:42:30Z")
Yeah ! Thanks Stephane 🙂