Date: Fri, 21 Jan 2000 23:45:34 +0100 From: Andre Oppermann <oppermann@pipeline.ch> To: "Louis A. Mamakos" <louie@TransSys.COM> Cc: Garance A Drosihn <drosih@rpi.edu>, John Polstra <jdp@polstra.com>, current@FreeBSD.ORG Subject: Re: Please help spread the CVSup mirror load more evenly Message-ID: <3888E18E.F1CBA39B@pipeline.ch> References: <XFMail.000121104339.jdp@polstra.com> <v04210101b4ae72ec9d9f@[128.113.24.47]> <3888D870.2416BFE8@pipeline.ch> <200001212214.RAA02259@whizzo.transsys.com>
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Louis A. Mamakos wrote: > > cvsup IN CNAME cvsup1.freebsd.org. > > cvsup IN CNAME cvsup2.freebsd.org. > > cvsup IN CNAME cvsup3.freebsd.org. > > cvsup IN CNAME cvsup4.freebsd.org. > > cvsup IN CNAME cvsup5.freebsd.org. > > cvsup IN CNAME cvsup6.freebsd.org. > > cvsup IN CNAME cvsup7.freebsd.org. > > cvsup IN CNAME cvsup8.freebsd.org. > > This is wrong two ways. > > First, the data associated with a CNAME is supposed to be the > cannonical name of a host, and not another domain name with only > a CNAME resource record. ??? Are all cvsupX.freebsd.org also CNAME's? > Second, a domain name can at most a single CNAME record associated > with it, and other other record types. BIND will (should) barf on a > zone file containing the example you listed. It does not. It will round-robin over the CNAME's. > > If you simply put "cvsup.freebsd.org" into your supfile you'll get > > randomly one of them. This should spread the load fairly well. If > > you want a special one then simply put "cvsupX.freebsd.org" into > > you supfile. > > You could play some DNS games to get this effect, though it's not > clear what the randomness of the list of resource records is supposed > to be. Certain the DNS protocol doesn't define any randomness. But bind does. > > I don't see any appearant reson (short of network connectivity) that > > one *needs* to get always the *same* server. > > See previous mesasge from John regarding doing two successive updates > where the servers are not synchronized with the same version files. Who cvsup's regurlary more than once or twice a day? Committers AFAIK do cvs directly. > Is this really a problem that demands solutions this complicated? The > solution isn't necessarily a technological one; a simple email message > reminding people of other servers might be sufficient :-) Yea, then all swamp cvsup8.freebsd.org and John has to send another message that there are still cvsup[2-7].freebsd.org idling around. Just kidding... But you get the point? -- Andre To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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