Package: subversion Version: 1.6.9dfsg-1 X-Debbugs-CC: dev@subversion.apache.org
Hello, Subversionists, I have a subversion repository with a single revision, consisting of a single roughly 10 MB file with random data. I use svnserve to serve that repository. I use a client to access the svnserve over the network, via "svn co". (The client happens to be Ubuntu's 1.6.5dfsg-1ubuntu1, in case that matters.) The server is an openvz guest. When, on the corresponding host, I set vzctl set NNN --tcpsndbuf 415k:715k or lower (my guess is the first number is the one that matters), the checkout starts, there is some initial network traffic, but then svnadmin starts to eat up all CPU cycles it can get and no further progress is made, until I kill the svnadmin process manually on the server. Just killing the client does not seem to stop the waste of CPU cycles on the server. When I increase the tcpsndbuf above that value, there is no problem. However, when I check in a much larger file into the repository (I do that directly, using file:/// - access), and try to check out again (using svnserve), the problem reappears. This is quite reproducibly, with svnadmin as a standalone daemon as well as svnadmin running under inetd. For the latter case, I made no precise experiments about the --tcpsndbuf numbers. This is the summary. I have written three mails yesterday and today to the dev@subversion.apache.org mailing list, but have not received any answers there yet. There is lots of nitty-gritty background information in those mails, which, hopefully, you'll be able to find here: http://mail-archives.apache.org/mod_mbox/subversion-dev/201002.mbox/browser Regards, and thank you for providing fine software, Andreas P.S.: I ask the Debian bug tracking system to forward a copy of this mail to the SVN dev mailing list. This contains two pieces of information not available in my previous mails to that list: * The bug is reproducible with the latest subversion software version I can easily install, short of compiling myself. * The client I'm using is, and always has been, 1.6.5dfsg-1ubuntu1. I think I misquoted it to be 1.5 in one of my earlier mails. I apologize if this caused any confusion! -- Dr. Andreas Krüger, Berater, DV-RATIO NORDWEST GmbH andreas.krue...@dv-ratio.com GPG/PGP Fingerprint 8063 4A9B 362D 4220 A546 14C1 EA19 AADC FD44 5EB7 DV-RATIO NORDWEST GmbH Tel: +49 (0)211 / 577 996-0 Fax: +49 (0)211 / 577 996-26 http://www.dv-ratio.com <http://www.dv-ratio.com> Sitz der Gesellschaft Habsburgerstraße 12, 40547 Düsseldorf Registergericht Düsseldorf HRB 34330 USt-IdNr.: DE811321837 Steuer-Nr.: 809/44031 Geschäftsführung: Günter Gerstmann Prokura: Trudbert Vetter, Uwe Wolfram DV-RATIO - "Kompetenz und Zuverlässigkeit seit 1980"
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