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From Igor Sysoev ...@rambler-co.ru>
Subject Re: mod_proxy Cache-Control: no-cache=<directive> support Apache1.3
Date Thu, 21 Feb 2002 11:51:00 GMT
On Wed, 20 Feb 2002, Graham Leggett wrote:

> Igor Sysoev wrote:
> 
> > 1.3.23 mod_proxy calls ap_proxy_send_fb() and than closes backend.
> > But ap_proxy_send_fb() flushes output to client so it can hang
> > for a long time.
> 
> I have come up with a patch to solve this problem - in theory anyway.
> 
> Can you test it and get back to me with whether it makes a difference or
> not...?

Unfortunately no - all my frontend servers are using mod_accel almost year
and it's not possible to convert back any of them to mod_proxy.

The main lingering_close symptom on backend is FIN_WAIT2 socket state.
Apache 1.3 does not show lingering_close in %T and scoreboard.

> The patch is being posted separately.

It seems that now backend socket is closed in right place.

Igor Sysoev


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