mp guide: sections -> leaks
Hello, I've had problems with sections causing leaks with graceful restart, at least with some versions/setups of mod_perl. I thought the problem should be noted in the guide. A patch is attached for: http://perl.apache.org/docs/1.0/guide/troubleshooting.pod.orig I no longer have my test code, it was a while ago. Here's the link and mail exchange that confirmed my tests: http://aspn.activestate.com/ASPN/Mail/Message/modperl/304620 > >> > I have a static Solaris compilation, and have the same problems > >> > where the parent seems to grow by 1M each HUP. > >> > >> that's strange, do you have PerlFreshRestart On or some sections? > >> otherwise, kill -HUP with a static modperl is a noop. > > > >You got me! I have sections ... but I didn't know > >it was such a crime. Pretty bizarre behavior if you ask me. > > it's not a crime, but if you're running Perl code during restart there's a > strong chance you'll be growing the server size. i agree 1M is bizarre > though. Brad -- ... There is dignity in paucity of words. ... -- Hagakure --- troubleshooting.pod.orig 2004-05-04 16:57:24.0 +1000 +++ troubleshooting.pod.new 2004-05-04 17:03:48.0 +1000 @@ -767,6 +767,10 @@ See the I explanation at the section: L +Also, be aware that sections can also cause leaks during +graceful restarts. See the (sub)thread: +http://aspn.activestate.com/ASPN/Mail/Message/modperl/304620 + =head1 OS Specific Notes =head2 RedHat Linux -- Report problems: http://perl.apache.org/bugs/ Mail list info: http://perl.apache.org/maillist/modperl.html List etiquette: http://perl.apache.org/maillist/email-etiquette.html
Re: mp guide: sections -> leaks
> Thanks for the patch, Brad. But are you sure this is still the case with the > latest mp1? This thread that you've quoted is 4 years old. And it doesn't show > any code that may cause such a leak. I'm reasonable sure I got the leaks with apache 1.3.27 and mod_perl 1.27. I don't know about newer versions. I've looked again and can't find the code I used, I think it was defining a sub which was probably the leak. > >>it's not a crime, but if you're running Perl code during restart there's a > >>strong chance you'll be growing the server size. i agree 1M is bizarre > >>though. > > In which case this should probably mention: > > > +Also, be aware that sections can also cause leaks during > > +graceful restarts. See the (sub)thread: > > +http://aspn.activestate.com/ASPN/Mail/Message/modperl/304620 > > "when running some perl code"? as in 'besides using sections to do > dynamic configuration'? I took the "if you're running Perl code during restart" to include dynamic configuration code. I don't really understand the process so I'll defer to you. I'd just like to see sections mentioned as a possible culprit. Brad -- Ikuno Oribe said, "If a retainer will just think about what he is to do for the day at hand, he will be able to do anything. If it is a single day's work, one should be able to put up with it. Tomorrow, too, is but another single day."-- Hagakure http://bereft.net/hagakure/ -- Report problems: http://perl.apache.org/bugs/ Mail list info: http://perl.apache.org/maillist/modperl.html List etiquette: http://perl.apache.org/maillist/email-etiquette.html
