[Date Prev][Date Next]
Re: BDB vs. HDB
Donn Cave wrote:
On Thursday, March 3, 2005, at 09:01 AM, Matthew J. Smith wrote:
Given a brand new OpenLDAP 2.2.23 installation, is there any reason to
continue to use BDB instead of HDB, or can I safely move everything to
HDB? Do the Berkley 4.2.52+ db_* tools support HDB? I recall a problem
with db_verify once upon a time...
One thing to test would be performance on queries with the
search base different from the database suffix. If you see
the problem I thought I was seeing, hdb will be an order of
magnitude worse in this case. That was with an older version,
2.2.17 I think, and of course the usual caveats with respect
to tuning parameters.
Tuning is of course essential, and hdb lives-n-dies on the IDLcache.
Many subtree searches will be slower until the cache is prepped, but
once you've loaded the cache it's fine.
-- Howard Chu
Chief Architect, Symas Corp. Director, Highland Sun
Symas: Premier OpenSource Development and Support