Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!watmath!clyde!caip!elbereth!rutgers!husc6!harvard!adelie!mirror!rayssd!dhb
From: dhb@rayssd.UUCP (David H. Brierley)
Newsgroups: net.news.adm
Subject: Re: Problem with bitmap for vnews
Message-ID: <285@rayssd.UUCP>
Date: Tue, 21-Oct-86 13:12:43 EDT
Article-I.D.: rayssd.285
Posted: Tue Oct 21 13:12:43 1986
Date-Received: Wed, 22-Oct-86 06:37:04 EDT
References: <196@sandia.UUCP>
Sender: dhb@rayssd.UUCP (David H. Brierley @ Raytheon Co., Portsmouth RI)
Organization: Raytheon Co., Portsmouth RI
Lines: 21

> We keep getting messages similar to this one forr groups having reached
> a fairly high message number. Same with net.sf-lovers and net.women. 
> 
> > Oct 16 10:16		vnews:  Bitmap not large enough for newsgroup net.micro.mac

I have run into this problem on several newgroups and came up with what I
think is a pretty good solution.  Instead of randomly increasing the size
of the bitmap every time I had a problem,  I recoded the news software to
use a dynamically sized bitmap.  This way, no matter how many articles you
have in a particular group you will never overflow the bitmap.  If other
people are interested in this I will post the changes after I get them
working on version 2.11.  The scheme that I am using is fairly efficient
about memory usage so it should even work on small machines (it has to
be efficient because I am running 2.10.1 which doesn't have the minimum
article number stuff for offsetting the bitmap).  Anyway, let me know
if you are interested in this and if I get enough requests I will post
the mods to mod.sources.

-- 
	Dave Brierley; Raytheon Co.; Portsmouth RI; (401)-847-8000 x4073
	{ allegra, gatech, ihnp4, linus!raybed2 } !rayssd!dhb