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From Jim Jagielski <...@jaguNET.com>
Subject Re: Our recent Apache woes (fwd)
Date Sat, 28 Jun 1997 18:21:50 GMT
Marc Slemko wrote:
> 
> I am wary of doing this while we still have the bogus /usr/tmp hardcoded
> for the lockfile path.

Oh yeah... Wasn't someone planning on some code changes to
allow that to be placed somewhere else?
> 
> On Sat, 28 Jun 1997, Randy Terbush wrote:
> 
> > > In 1.2.1, do you think we should default freebsd and aux to
> > > USE_FLOCK_SERIALIZED_ACCEPT?  sunos should work with that as well.  I
> > > don't know what to use for hpux, ultrix, osf1, paragon, sequent, ...
> > > 
> > > Dean
> > 
> > While we haven't seen many reports of problems that this might 
> > resolve on FreeBSD, I think that it is helpful on busy sites.
> > 
> > +1
> > 
> > 
> > 
> > > On Fri, 27 Jun 1997, Randy Terbush wrote:
> > > 
> > > > > Dean Gaudet wrote:
> > > > > > 
> > > > > > I am 100% convinced that serialized accepts are the way to go.
 I'm still
> > > > > > convincing myself that weakly serialized (i.e. a maximum of
N tasks inside
> > > > > > the loop) is a good thing as well (consider SMP boxes). 
> > > > > > 
> > > > > > The problem described below regarding the load is probably still
explained
> > > > > > by the lack of serialization.  The difference is probably that
hpux uses a
> > > > > > different formula for calculating its load avg than sunos 4.1.x.
 I'm not
> > > > > > sure how to relate the rest of the problem though. 
> > > > > > 
> > > > > > We could start defining one of the serialization directives
in 1.2.1
> > > > > > according to the reports we've received for:  osf, hpux, sunos.
 Use
> > > > > > whatever the users have reported works for them.  (Or whoever
uses those
> > > > > > architectures could tell me which of fcntl or flock works for
you.) 
> > > > > 
> > > > > This is weird... I'm finding out that with 1.2.1 :) and 1.3 that
> > > > > FreeBSD and A/UX _also_ work better using serialized accepts...
> > > > > I'm sure no one else runs A/UX, but I know we have a few FreeBSDers
> > > > > here: Have you seen the same?
> > > > 
> > > > I've been running with flock'ed serialized accepts on FreeBSD for a 
> > > > couple of months now. The server "runs better". Without 
> > > > serialization, processes seemed to get in a state where they would 
> > > > never be selected to handle a request. Just sitting in the queue 
> > > > chewing up memory. I still seem to have problems of this type 
> > > > though.
> > > > 
> > > > 
> > > > > -- 
> > > > > ====================================================================
> > > > >       Jim Jagielski            |       jaguNET Access Services
> > > > >      jim@jaguNET.com           |       http://www.jaguNET.com/
> > > > >             "Look at me! I'm wearing a cardboard belt!"
> > > > 
> > > > 
> > > > 
> > > > 
> > 
> > 
> > 
> 
> 


-- 
====================================================================
      Jim Jagielski            |       jaguNET Access Services
     jim@jaguNET.com           |       http://www.jaguNET.com/
            "Look at me! I'm wearing a cardboard belt!"

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