Date: Fri, 07 Mar 2008 10:34:36 -0600 From: Scott Oertel <freebsd@scottevil.com> To: David Malone <dwmalone@maths.tcd.ie> Cc: FreeBSD Mailing List <freebsd-stable@freebsd.org> Subject: Re: accf_http and incqlen Message-ID: <47D16E9C.9060203@scottevil.com> In-Reply-To: <20080307101002.GA99525@walton.maths.tcd.ie> References: <47D006F7.1030607@scottevil.com> <47D063FF.7000409@geminix.org> <20080307101002.GA99525@walton.maths.tcd.ie>
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David Malone wrote: > On Thu, Mar 06, 2008 at 10:37:03PM +0100, Uwe Doering wrote: > >> Last time I looked (in FreeBSD 4.x) these were connections that got >> stuck in an early stage, that is, before the HTTP request had been >> received. The 'accf_http' filter which wants to parse said request >> waits forever in this situation because there is no timeout implemented, >> as far as I recall. So these would-be HTTP connections pile up over time. >> > > The accf_http should flush out the oldest of these connections once > there are more than a certain number of them. I think that the > number permitted depeneds on the backlog parameter passed to listen. > I checked that this worked recently, and it seemed to do the right > thing on 7.X and 4.X. I'd be suprised if 5.X and 6.X differed in > a substantial way. > > David. > > So having the queue showing full in the netstat should be normal, and not have any side effects? btw, i tested this on 4.x, 5.x, 6.x and 7.x, they all appear to behave in the same fashion. -Scott
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