----- Original Message ----- > ----- Original Message ----- > > This may be a stupid idea, but has anyone had any experience > > load-balancing two Apache (2.2 in our case) servers that are running > > mod_dav? We've searched and searched and it looks like it's just > > something that no one at all talks about. > > I've been thinking about this for some time, but then decided that > it's generally a stupid idea. > Mostly because there are a couple dozen of Dav clients and all of > them have their own interpretation of how to speak to a Dav Server. Good point, we've definitely run into that! > > My idea back then was to have subversion read/write -- but that > seems like a terribly stupid idea because you have no way to split > it up properly. > > > We've got a setup in production where we've got Apache 2.2.17 > > servers > > That sounds like a bad idea. Have you considered starting with test? > Oh yeah, we tested the one-at-a-time setup like we're using in test first. This is the result of that, not the start! :) > > on two different machines (1 per machine) ,identical, each with > > What kind of storage do they sit on? This is crucial, because > mod_dav works with FS locks. > Well, that complicates it I'm sure. They've actually both got an NFS mount from a different box mounted as their WebDAV root. The thing there is, why exactly is that a bad idea? Is it "just" a matter of getting one file over-writing another one potentially or do you risk more serious issues than that? Yes, we certainly could/should try FTP, SFTP/SSH, or SMB, but for a couple of reasons (partly work-flow, partly security) we'd rejected those. We wound up at WebDAV only because it seemed like the only thing left. We'd be open to any other ideas though. > > mod_dav. They're both sitting behind a hardware load-balancer that > > does a port rewrite sending traffic to only one of the two. We'd > > like to let it round-robin between both, but were unsure whether > > that was safe/wise/possible. > > Round-robin seems like the best idea, but only if you enable > sticky sessions. > That's the thing though, given all the little quirks of WebDAV, the various issue with clients, and the NFS mount, is that safe/possible to let them round-robin? Thanks! > i > > -- > Igor GaliÄ > > Tel: +43 (0) 664 886 22 883 > Mail: i.galic@xxxxxxxxxxxxxx > URL: http://brainsware.org/ > > --------------------------------------------------------------------- > The official User-To-User support forum of the Apache HTTP Server > Project. > See <URL:http://httpd.apache.org/userslist.html> for more info. > To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx > " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx > For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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