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List:       djbdns
Subject:    Re: stats reports > CACHESIZE?
From:       James Raftery <james-djbdns () domainregistry ! ie>
Date:       2000-08-29 16:50:26
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On Tue, Aug 29, 2000 at 12:50:05PM -0400, Steve Shorter wrote:
> 	My understanding of the CACHESIZE environment variable was that
> it would limit the memory usage of dsncache.

Yes, CACHESIZE == the maximum amount of memory to use for the cache at
any moment in time.

> However stats as logged by
> multilog seems to report memory usage > CACHESIZE.
> @4000000039abe3ba1e4df51c stats 31685 5614338

The second figure is how much information has been placed into the cache
in the lifetime of the dnscache process. Entries in the cache are
removed when their TTL expires, and if the CACHESIZE limit is reached
the oldest entries will be removed even before their TTL expires to 
make room for new additions.

CACHESIZE is a fixed limit. The stats give a running total. The FAQ,
IIRC, gives simple procedure to use to determine if your CACHESIZE
should be raised or lowered.

Regards,

james
-- 
James Raftery (JBR54)  -  Programmer Hostmaster  -  IE TLD Hostmaster
   IE Domain Registry  -  www.domainregistry.ie  -  (+353 1) 706 2375
  "Managing 4000 customer domains with BIND has been a lot like
   herding cats." - Mike Batchelor, on dns@list.cr.yp.to.

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