Date: Fri, 18 Feb 2005 23:39:38 +0100 From: Pawel Worach <pawel.worach@telia.com> To: Kelly Yancey <kbyanc@FreeBSD.org> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/lib/libfetch http.c Message-ID: <42166EAA.2060001@telia.com> In-Reply-To: <200502160022.j1G0MK3P059683@repoman.freebsd.org> References: <200502160022.j1G0MK3P059683@repoman.freebsd.org>
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Kelly Yancey wrote: > kbyanc 2005-02-16 00:22:20 UTC > > FreeBSD src repository > > Modified files: > lib/libfetch http.c > Log: > Set TCP_NOPUSH on HTTP requests, reducing the number of round-trips > necessary to establish each connection. > This seems to have broken fetch though a http proxy (in this case squid on Solaris). # fetch -v http://news.bbc.co.uk/ looking up proxy.here connecting to proxy.here:8080 requesting http://news.bbc.co.uk/ fetch: http://news.bbc.co.uk/: Unknown error: 0 tcpdump on proxy box: # /opt/sfw/sbin/tcpdump -vvv -tt port 8080 and host client tcpdump: listening on hme0 1108766119.732379 client.41047 > proxy.8080: S 3519007752:3519007752(0) win 65535 <mss 1460,nop,nop,sackOK,nop,wscale 1,nop,nop,[|tcp]> (DF) (ttl 64, id 29064, len 64) 1108766119.732409 proxy.8080 > client.41047: S 2176773672:2176773672(0) ack 3519007753 win 49232 <nop,nop,timestamp 2616599163 204332855,mss[|tcp]> (DF) (ttl 64, id 54201, len 64) 1108766119.732719 client.41047 > proxy.8080: . [tcp sum ok] 1:1(0) ack 1 win 33304 <nop,nop,timestamp 204332855 2616599163> (DF) (ttl 64, id 29065, len 52) 1108766119.733003 client.41047 > proxy.8080: FP 1:113(112) ack 1 win 33304 <nop,nop,timestamp 204332855 2616599163> (DF) (ttl 64, id 29066, len 164) 1108766119.733268 proxy.8080 > client.41047: . [tcp sum ok] 1:1(0) ack 114 win 49232 <nop,nop,timestamp 2616599163 204332855> (DF) (ttl 64, id 54202, len 52) 1108766119.734710 proxy.8080 > client.41047: F [tcp sum ok] 1:1(0) ack 114 win 49232 <nop,nop,timestamp 2616599163 204332855> (DF) (ttl 64, id 54204, len 52) 1108766119.734998 client.41047 > proxy.8080: . [tcp sum ok] 114:114(0) ack 2 win 33303 <nop,nop,timestamp 204332857 2616599163> (DF) (ttl 64, id 29068, len 52) Reverting lib/libfetch/http.c to 1.74 makes the problem go away. -- Pawel
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