Tomcat randomly stops receiving requests and returns error 503.
Im running a tomcat 7 on Ubuntu 12.04 TLS updated.
In the apache error log you can see the following trace:
[Wed Mar 04 09:36:27 2015] [error] (111)Connection refused: proxy: HTTP: attempt to connect to 127.0.0.1:8080 (localhost) failed
[Wed Mar 04 09:36:27 2015] [error] ap_proxy_connect_backend disabling worker for (localhost)
[Wed Mar 04 09:36:27 2015] [error] (111)Connection refused: proxy: HTTP: attempt to connect to 127.0.0.1:8080 (localhost) failed
[Wed Mar 04 09:36:27 2015] [error] ap_proxy_connect_backend disabling worker for (localhost)
[Wed Mar 04 09:36:27 2015] [error] (111)Connection refused: proxy: HTTP: attempt to connect to 127.0.0.1:8080 (localhost) failed
[Wed Mar 04 09:36:27 2015] [error] (111)Connection refused: proxy: HTTP: attempt to connect to 127.0.0.1:8080 (localhost) failed
[Wed Mar 04 09:36:27 2015] [error] ap_proxy_connect_backend disabling worker for (localhost)
There is no trace of error in any of the tomcat log files (catalina) :S
That is not caused by memory leaks Head Space or Java Head Space, because i cause these problems and error traces appear in the log files (besides, I reviewed the code and there is no system.exit() on any file :P).
I'm pretty confused and i can't understand what is happening, thanks in advance!
