Date: Thu, 1 Sep 2005 18:26:03 +0400 (MSD) From: Igor Sysoev <is@rambler-co.ru> To: freebsd-net@freebsd.org Subject: Re: strange timeout error returned by kevent() in 6.0 Message-ID: <20050901182115.F11484@is.park.rambler.ru> In-Reply-To: <20050901140051.G11484@is.park.rambler.ru> References: <20050901140051.G11484@is.park.rambler.ru>
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On Thu, 1 Sep 2005, Igor Sysoev wrote: > I found strange timeout errors returned by kevent() in 6.0 using > my http server named nginx. The nginx's run on three machines: > two 4.10-RELEASE and one 6.0-BETA3. All machines serve the same > content (simple cluster) and each handles about 200 requests/second. > > On 6.0 sometimes (2 or 3 times per hour) in the daytime kevent() > returns EV_EOF in flags and ETIMEDOUT in fflags, nevertheless: > > 1) nginx does not set any kernel timeout for sockets; > 2) the total request time for such failed requests is small, 30 and so > seconds. I have changed code to ignore the ETIMEDOUT error returned by kevent() and found that subsequent sendfile() returned the ENOTCONN. By the way, why sendfile() may return ENOTCONN ? I saw this error code on 4.x too. Igor Sysoev http://sysoev.ru/en/
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