Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!water!watnot!watmath!clyde!rutgers!husc6!yale!cmcl2!phri!roy From: roy@phri.UUCP Newsgroups: news.sysadmin,comp.mail.misc Subject: Re: mailers (really connectivity data) Message-ID: <2609@phri.UUCP> Date: Sun, 22-Mar-87 11:40:21 EST Article-I.D.: phri.2609 Posted: Sun Mar 22 11:40:21 1987 Date-Received: Wed, 25-Mar-87 01:09:05 EST References: <1113@ulowell.cs.ulowell.edu> <1482@celtics.UUCP> <725@xanth.UUCP> Reply-To: roy@phri.UUCP (Roy Smith) Organization: Public Health Research Inst. (NY, NY) Lines: 15 Xref: utgpu news.sysadmin:75 comp.mail.misc:135 Summary: Ways to improve map distributions Various people have suggested distributing map updates in diff format to reduce the amount of data that has to be shipped around. The most common objection I've seen so far is that if you only ship diffs, it's too easy to get out of sync (i.e. patching the wrong base version of a file). Obviously, the thing to do (as many have suggested) is to ship the full map every so often, say 4 times a year. My addition to this discussion is to suggest that you maintain redundant news feeds for mod.map so you increase the chances of always having up-to-date base files. -- Roy Smith, {allegra,cmcl2,philabs}!phri!roy System Administrator, Public Health Research Institute 455 First Avenue, New York, NY 10016 "you can't spell deoxyribonucleic without unix!"