Date: Fri, 21 Jan 2000 17:39:39 -0800 (PST) From: "Rodney W. Grimes" <freebsd@gndrsh.dnsmgr.net> To: hasty@rah.star-gate.com (Amancio Hasty) Cc: obrien@FreeBSD.ORG, jdp@polstra.com (John Polstra), current@FreeBSD.ORG Subject: Re: Please help spread the CVSup mirror load more evenly Message-ID: <200001220139.RAA59492@gndrsh.dnsmgr.net> In-Reply-To: <200001220133.RAA23696@rah.star-gate.com> from Amancio Hasty at "Jan 21, 2000 05:33:21 pm"
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> > > Hi David, > > > > > > John can implement a ping echo packet protocol for cvsup whose > > > response can have "cool" information on the server. Steven's > > > book on Networking already has the code for doing network latency > > > calculations . It is more like if John has the time to implement > > > such scheme .... > > > > You don't even need to modify the protocol. Just write a small > > tcp program that times the 3 way handshake on open to all the > > servers, take the one with the sortest time and spit that out > > for the user to stuff in his cvsupfile. > > > > 15 lines of perl should be more than enough :-) > > > Hi, > > Thats gross server load balancing . The network travel time > does not tell you how how loaded the machine is or the server. It may be gross to the server but it is optimal to the networks :-) > > There are couple of RFCs on network load balancing with > respect to servers or services and I am sure that there > are also widely available research papers. Most of those concentrate on balancing the load on the server itself. How about balancing the load on the network paths, I doubt very much that we have a server load problem near as much as we have a network load problem due to people not having ready access to the data that says ``this server is closest network wise to me''. -- Rod Grimes - KD7CAX @ CN85sl - (RWG25) rgrimes@gndrsh.dnsmgr.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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