good database type choices
ken at oceana.com
Wed Jun 4 10:01:40 EDT 2003
Patrick Welche wrote:
> On Tue, Jun 03, 2003 at 02:16:14PM -0600, Carl P. Corliss wrote:
>>So I think I figured out the problem.
>>What was happening was that db4 was having issues (don't know what in
>>particular) but it was causing lmtp to hang because lmtp was waiting for the
>>duplicate delivery check to complete and it never did because of whatever
>>issues db4 was having. So I switched the db type for deliver.db to skiplist
>>and now all seems to be working well...
> Default Recommended?
> --with-duplicate-db=DB db3_nosync skiplist
> --with-mboxlist-db=DB db3 skiplist
> --with-seen-db=DB flat skiplist
> --with-subs-db=DB flat
> --with-tls-db=DB db3_nosync
> Going through past emails, it seems now that skiplist is recommended
> essentially for everything. Is that plausible? Comments?
No, skiplist isn't recommended for everything. Rob posted a message
multiple times with the current recommendations (which are the defaults
in 2.2), and the reasons why.
In a nutshell:
The simple reason for this setup is that skiplist performs very well for
when enumerating a database and BDB works very well for random access.
Kenneth Murchison Oceana Matrix Ltd.
Software Engineer 21 Princeton Place
716-662-8973 x26 Orchard Park, NY 14127
--PGP Public Key-- http://www.oceana.com/~ken/ksm.pgp
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