Hmmm. On Friday night one of my servers (Solaris 5.6, modperl 1.21,
Apache 1.39) was hosed. Logging in to it, I found about 20 httpd children
spinning, eating cpu cycles.
I didn't dig into it, just killed the parent server (ungracefully) and
restarted, but mentioning it here in case this is something that's
happening to a bunch of us running Apache/modperl on Solaris.
<Steve Reppucci>
On Mon, 18 Oct 1999, Eric Cholet wrote:
> On Monday, October 18, 1999 5:42 PM, Marc D. Spencer [SMTP:[EMAIL PROTECTED]] wrote:
> > Hi.
> >
> > I have an apache server (1.3.6/Solaris 5.6) running mod_perl/1.21.
> >
> > For it, I have a fairly complex handler involving several classes, some
> > of which bind to libraries (one of them is ImageMagick).
> >
> > The server is configured to only allow requests for this module, and does
> > not serve any static pages.
> >
> > At least once a day, I will find an http process monopolizing one of the
> > 4 CPU's in our production machine (E-450); server-status claims it's in W
> > mode (waiting for connection) but the log that our module generates
> > indicates it hangs at an arbitrary point within it's flow.
>
> For what it's worth, I've been experiencing the same situation. Happens less
> often, but that may be just because I have less trafic. Mind that W mode is
> 'sending reply' which is consistent with the module being hung.
> I haven't raised this issue on the list because I haven't been able to track
> it down and therefore I assume it's a bug in my code. Since I do socket stuff
> I could very well be blocking on a system call.
>
>
> >
> > We have poured over the code, and over the FAQ's, etc, at the mod_perl
> > site, but have no ideas beyond a cron to kill these abhorrant processes
> > when their cume CPU time exceeds some level (not a great measure...we had
> > to set the threshold very high as to not kill happy processes).
> >
> > Can someone shed any light on what may be happening, or a better way to
> > monitor and kill these children?
> >
> > Thanks, in advance.
> > Marc Spencer
> > www.kodak.com
>
> --
> Eric
>
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Steve Reppucci [EMAIL PROTECTED] |
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