Understood (of course). I'll assemble the information needed. - Stig
On Tue, Dec 21, 2010 at 9:51 AM, Kristian Lyngstol < [email protected]> wrote: > On Tue, Dec 21, 2010 at 09:36:14AM +0100, Stig Bakken wrote: > > Kristian, please let me know whether I should file a ticket for this. > > So far I haven't seen anything that suggests a bug. > > A single slow response is all the logs show - for better or worse. That > could just as well just be a slow client or packet loss. > > What I need to be able to determine if this is a bug in Varnish, > network-issue or phase-of-moon glitch is: > > - Several occurrences of slow responses and the requests around it in > varnishlog (you can obfuscate the IP - but I need to be able to tell > which requests come from the same IP: ie: if there are two IP's, A.A.A.A > and B.B.B.B are ok, but X.X.X.X for both are not). > - 'varnishstat -1' output > - 'sysctl -a' output > - Network configuration on the machine(s), specially with regards to any > load balancers > - 'dmesg' > - Complete VCL (I do believe I already have that) > - All start-up parameters. Any other running services on the machines. > > If that doesn't reveal the nature issue, I'll need to see tcpdump-output of > the incident to track it further - at that point, obfuscation is not > practically possible without risking the integrity of the data. > > In short: all you can give me. > > The issue doesn't have an obvious explanation and there isn't really any > reason why a cache hit would take any real amount of time when we rule out > busy objects. I should also point out that I can only really spend time on > this to rule out or confirm if it is a varnish bug or not. > > -- > Kristian Lyngstøl > Product Specialist > Varnish Software > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.10 (GNU/Linux) > > iQEcBAEBAgAGBQJNEGqeAAoJEIC1IG5rXEfqLC4IAJm4o8ernD3XLfHvzHO0ui77 > dp8Dy+zXYr9mJ5Mjfyz1CPjHOvuloRBlV5Gt20z872mtcPTedVMuk8w9fWlUo1RU > lwWaMnZ4qHhwhWg5zWiDi/hqno5mpR6BPcVoT+pQyOJp2Z4jB/rRvkV3IkXt1Eb/ > TtLhKROxkiGUIa/uayzPGyb2KMjD+KrSn8Jny66vzrvetPpIUd3/A7txuJ4RHNMI > MWx4zed8O9Bm4FR9z109Nr3umr89Lw4AcheAa17m91ZTP1DcFx+DfRTn2IlpFeb0 > 6+fAB9svoC+K7+PJqnMo9XYp9COzCNWWN9fv34x30rIouH6DSRtOwOyJ9gihOGw= > =Jmur > -----END PGP SIGNATURE----- > > -- Stig Bakken CTO, Zedge.net - free your phone!
_______________________________________________ varnish-misc mailing list [email protected] http://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
