Re: [webmin-l] updates

[Jamie C. <jca...@we...>]

On 11/Dec/2006 22:32 Barry wrote ..
> Jamie Cameron wrote:
> > On 11/Dec/2006 18:52 Barry wrote ..
> >> OK - a little more info after some more testing -
> >>
> >> It does indeed seem I am running into a low memory condition.
> >>
> >> How much memory does miniserv/webmin need anyway?
> >>
> >> Miniserv.error gives me the sparse message:
> >>
> >> Out of memory!
> >>
> >> which doesn't help me help it :(
> > 
> > It really doesn't use much memory.. on one of my systems it uses 95 MB
> with a bunch
> > of Webmin libraries pre-loaded to speed up modules. On another machine
> without
> > preloading, only 10MB is used.
> > 
> > By default, module preloading is only setup automatically if using Virtualmin
> pro.
> 
> It kinda looks now like the modules that display lists are the most 
> likely to cause this error. I have seen this behavior before, but I 
> guess I didn't make the connection until now.
> 
> Maybe it is not miniserv itself as much as teh perl programs? Virtual 
> min is one, I have seen it when listing aliases and especially when 
> listing email for a user account, or the results of a query on email. I
> also saw it just now when trying to compose an email by a brand new 
> user. Maybe there is some peak usage there?
> 
> Also I wonder if the new frames them causes extra hits on the server, 
> causing it to spawn new children more often then it would have before?
> Is there some configuration I can do in that area, like I can with apache>
> 
> As for the discrepancy between the system info display in webmin and top
> and free, the latter two seem to be in close alignment, a lot closer the
> webmin display is to either.
> 
> BTW, I just noticed I had pop/pop3s and smtp active in zinetd, and I 
> also had sendmail and dovecot running as services. I just turned off the
> xinetd ones, will see if that helps any.

I suspect that Webmin is using up too much memory when you do things
that cause large perl libraries to be loaded, in particular those in
the Virtualmin module (which has a huge -lib.pl file). It would be
useful to know the peak size of a miniserv.pl process before it exits ...
I imagine they are running out of memory and dieing.

 - Jamie