overview full

Jeffrey M.Vinocur jeff at litech.org
Tue Apr 19 23:44:50 UTC 2005

On Apr 19, 2005, at 10:25 AM, Paul Reilly wrote:

> news> inndf -o
> 100% overview space used
> I can't add more buffers due to no disk space.
> Is there a way to clear the buffers without having
> to re-create them?

Well, what you're seeing is perhaps better thought of, not as 
insufficient space for overview, but as an imbalance between number of 
articles you have and the number of overview entries you can fit.  Thus 
your problem is a combination of (1) space available for overview, (2) 
the number of articles you have, and (3) the average size of an 
article.  If your server has large articles, you need less overview 
space; if your server has small articles, you need more overview space.

So clearing the overview buffers would temporarily fix the problem, but 
it would also make a bunch of articles all but useless to readers.  And 
besides, the problem is likely to recur in the future, because as soon 
as the same number of articles arrive, you'll need the same number of 
overview entries.  (I'd say clearing buffindexed is only likely to be 
useful if you have reason to believe that your spool is -temporarily- 
full of small articles, but you expect large articles to predominate 
again soon.)

The long term solution to your problem must affect one of the three 
things above.  It sounds like you can't change #1.  You can change #2, 
though.  If you're using tradspool or similar, modify your expire.ctl 
to expire articles faster (you won't have as many total articles, but 
those extra articles wouldn't do you any good if you wiped their 
overview entries anyway).  If you're using CNFS, shrink the size of 
your CNFS buffers (same thing goes for the extra articles).  As for #3, 
you probably can't change the average size of article arriving on your 
server, but you -can- change the average size of article on disk at any 
moment (for example, by using storage.conf to put small articles into a 
CNFS buffer that rolls over more quickly).  Of course, you may not find 
this change a net improvement.

Jeffrey M. Vinocur
jeff at litech.org

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