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Article #5326Re: Taylor + C News CR --> garbled batches
From: Henry Spencer
Date: Mon, 05 Dec 1994 17:19
Date: Mon, 05 Dec 1994 17:19
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In article <D0BGKF.2qr@telly.on.ca> evan@telly.on.ca (Evan Leibovitch) writes: >What I've found is that a significant amount of incoming news batches are >garbled. Brought over compressed, they won't uncompress cleanly; when it's >forced, the first half of each batch looks fine, but as one goes further and >further in the file it becomes more and more garbled until it's unreadable. This really does sound like bit rot in transmission, rather than a news problem. Progressive deterioration is pretty much what you would expect from occasional bit errors, since compress builds its dictionary as it goes along. And if compress itself is balking, that's not something that news *could* do -- the problem's got to be somewhere in the transmission path between compress and uncompress, which basically means the UUCP software and the hardware. I'd suggest making sure by UUCPing some files back and forth a few times, using the same paths and protocols employed for news, and seeing if they make it intact. Some experiments with more suspicious protocols, and possibly encapsulations with checksums (such as the bencode/bdecode stuff that ships with C News), would also seem in order. -- Little minds have only room for thoughts | Henry Spencer of bread and butter. --Amundsen | henry@zoo.toronto.edu
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10d3b3,7959158d05bb6995 X-Google-Attributes: gid10d3b3,public X-Google-Thread: fb4a0,7959158d05bb6995 X-Google-Attributes: gidfb4a0,public X-Google-Thread: 10d020,7959158d05bb6995 X-Google-Attributes: gid10d020,public X-Google-Thread: 1149bd,7959158d05bb6995 X-Google-Attributes: gid1149bd,public X-Google-ArrivalTime: 1994-12-05 09:48:03 PST Newsgroups: comp.mail.uucp,news.software.b,can.usrgroup,comp.unix.unixware Path: arc1-ca.pugleaf.net!bga.com!news.sprintlink.net!howland.reston.ans.net!cs.utexas.edu!utnut!info.physics.utoronto.ca!utzoo!henry From: henry@zoo.toronto.edu (Henry Spencer) Subject: Re: Taylor + C News CR --> garbled batches Message-ID: <D0CLHB.775@zoo.toronto.edu> Date: Mon, 5 Dec 1994 17:19:58 GMT References: <D0BGKF.2qr@telly.on.ca> Organization: U of Toronto Zoology Lines: 22