You can try to log/debug something meaningful using web2py's loggin framework: http://web2py.com/books/default/chapter/29/04/the-core?search=logger#Logging
BTW the CTRL-C (SIGINT) seems to show that the process is in the middle of some I/O operation. Try to use the strace command strace -o logfile -f python web2py.py ... you will see a LOT of cruft when everything goes well, but it will give you some hint on which system call python gets stuck. 2016-10-25 17:01 GMT+02:00 Wasim Baig <[email protected]>: > Hi Niphlod/Michele: > > Thanks for the suggestions. > > Will put a rate limiter in front of Rocket just to be sure. > > I wasn't able to see anything in the logs, actually, all I have is the > httpserver.log. > How can I get web2py to log more what its doing internally? -D 100 didn't > do anything, or maybe I didn't know where to look. If web2py could tell me > where its stuck that would be most helpful. > > Concur on the SSL, we've noticed that this happens mostly on the SSL part. > Also, I've noticed it happens a lot more if we have multiple interfaces on > the same web2py process. Interestingly, on a different installation, this > happens too, and hangs more often if I edit a file. If I don't touch them > much, they seems happier :( > This is leading me to believe that its something I'm doing in the > application that is causing this behavior. But the apps themselves are > generally fairly simple ones, forms, grids and mysql. > > As a temporary hack, for now I run multiple web2py processes, and haproxy > in front of them, and have monit monitor each of the individual web2py > processes and kill/restart them if non-responsive, but this isn't fixing > the problem, just bandaging over it. > > Again, thanks for the input. > > -wasim > > > On Tue, 25 Oct 2016 at 14:11 Michele Comitini <[email protected]> > wrote: > >> @Wasim are you leaving some web2py shell open with a db transaction going? >> >> Check uptime of your machine to see if load average is high or your run >> in a dead-lock. >> I see you are using certificates, I found that python ssl sockets have >> some quirks depending on python vs openssl version. >> >> Of course follow niphlod suggestions and keep in mind that it is easy to >> be under DDos attack, again it is better to use a dedicated SSL fronted >> server instead of python in the open internet... >> >> >> >> 2016-10-24 12:44 GMT+02:00 Niphlod <[email protected]>: >> >> see the log to trace any DDos attempts (or stuck requests ) >> >> >> On Friday, October 21, 2016 at 10:54:32 PM UTC+2, Wasim Baig wrote: >> >> Been using web2py for sometime now, thank you all for making life so easy. >> >> We use stock web2py src on debian 8, with Rocket and mysql and start them >> in screen. >> >> Frequently my web2py process get stuck. Ctrl-C won't kill it, we end up >> Ctrl-Z it, and then kill -9 pid. >> >> For example, >> >> root 13387 0.8 0.4 1131328 156496 pts/63 Sl+ Oct18 7:12 >> python2.7 web2py.py -d /var/run/web2py_localhost_8000.pid -a XXX >> --interfaces=127.0.0.1:8000 >> root 13421 0.0 0.4 1109424 143336 pts/8 Sl Oct18 0:39 >> python2.7 web2py.py -d /var/run/web2py_8000.pid -a XXX --interfaces= >> 148.251.132.230:8000:/etc/ssl/private/batuni_pk.key:/etc/ssl/private/batuni_pk.crt >> --ca-cert=/etc/ssl/private/AddTrustExternalCARoot.crt >> --ca-cert=/etc/ssl/private/COMODORSAAddTrustCA.crt >> --ca-cert=/etc/ssl/private/COMODORSADomainValidationSecureServerCA.crt >> --ca-cert=/etc/ssl/private/batuni_pk.ca-bundle >> >> >> Of these two processes, the one on localhost continues to respond fine, >> but the one on public IP was stuck. >> Nothing in the logs that I can see point to a problem. >> >> What can I do to troubleshoot this? >> >> -wasim >> >> -- >> Resources: >> - http://web2py.com >> - http://web2py.com/book (Documentation) >> - http://github.com/web2py/web2py (Source code) >> - https://code.google.com/p/web2py/issues/list (Report Issues) >> --- >> You received this message because you are subscribed to the Google Groups >> "web2py-users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> >> >> >> -- >> Michele Comitini >> Glisco s.n.c. >> tel: +39 335 66 71 336 >> >> -- >> Resources: >> - http://web2py.com >> - http://web2py.com/book (Documentation) >> - http://github.com/web2py/web2py (Source code) >> - https://code.google.com/p/web2py/issues/list (Report Issues) >> --- >> You received this message because you are subscribed to the Google Groups >> "web2py-users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> > -- > Resources: > - http://web2py.com > - http://web2py.com/book (Documentation) > - http://github.com/web2py/web2py (Source code) > - https://code.google.com/p/web2py/issues/list (Report Issues) > --- > You received this message because you are subscribed to the Google Groups > "web2py-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. 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