>-----Original Message----- >From: Jim Rowan [mailto:[email protected]] >Sent: måndag den 1 november 2010 16:54 >To: Assarsson, Emil >Cc: [email protected] >Subject: Re: [OpenAFS] fs setserverprefs and supernetting >On Nov 1, 2010, at 4:31 AM, Assarsson, Emil wrote: >> Hi all, >> >> I would just like to have your input on this method of setting >> serverprefs based on the supernet distance. >> >> The background is that we have a large WAN with high latencies. The >> default method of calculating the weight for serverprefs is not good. >> We could have done this with static weighting but we need to keep >> things really flexible and self-configuring. > >There's a built-in assumption here that IP address assignments have a >clear relationship with latency. That's probably accurate in so far >as your company uses supernetting for routing. If you hand off Wan >connections to MPLS, for instance, that might no longer be a good >assumption, and this approach may fall down. This algorithm does >appear to be an improvement over the built-in one, though.
I guess that periodic latency measurements and comparisons between servers would be better but that is just too hard to write in perl :-P -- Emil _______________________________________________ OpenAFS-info mailing list [email protected] https://lists.openafs.org/mailman/listinfo/openafs-info
