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From "Devi Krishna" <devkrish.webeng...@gmail.com>
Subject Re: Regarding graceful restart
Date Sat, 10 Feb 2007 04:15:19 GMT
Hi Folks,   Thanks for the replies.
What seems to be happening in my case , is when I send a graceful restart to
apache, I get the following messages in the access log


127.0.0.1 [05/Feb/2007:13:35:25 +0000] "GET / HTTP/1.0" 400 284
127.0.0.1 [05/Feb/2007:13:35:25 +0000] "GET / HTTP/1.0" 400 284
127.0.0.1 [05/Feb/2007:13:35:25 +0000] "GET / HTTP/1.0" 400 284
127.0.0.1 [05/Feb/2007:13:35:25 +0000] "GET / HTTP/1.0" 400 284
127.0.0.1 [05/Feb/2007:13:35:25 +0000] "GET / HTTP/1.0" 400 284

I am trying to find the root cause of what cause this request when we do
graceful restart.

I have been digging around for some days but not able to find out which code
is causing this.

Any cluse ?

Thanks & Regards
Devi



On 2/9/07, Plüm, Rüdiger, VF EITO <ruediger.pluem@vodafone.com> wrote:
>
>
>
> > -----Ursprüngliche Nachricht-----
> > Von: Henrik Nordstrom
> > Gesendet: Freitag, 9. Februar 2007 16:33
> > An: dev@httpd.apache.org
> > Betreff: Re: Regarding graceful restart
> >
> >
> > tor 2007-02-08 klockan 17:15 -0800 skrev Devi Krishna:
> > > Hi,
> > >
> > >  Resending this mail, just in case anyone would have
> > > suggestions/inputs as how to fix this for connections that
> > are in the
> > > ESTABLISHED state or FIN state or any other TCP state other than
> > > LISTEN
> >
> > Maybe change the "wake up call" to just connect briefly
> > without actually
> > sending a full HTTP request? This should be sufficient to wake up any
> > processes sleeping in accept() and will not cause anything to get
> > processed..
>
> Not if BSD accept filters are in place. In this case the kernel waits
> until it
> sees a HTTP request until it wakes up the process.
> And on Linux with TCP_DEFER_ACCEPT enabled you need to sent a least one
> byte of data.
>
> Regards
>
> Rüdiger
>
>

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