[Date Prev][Date Next] [Chronological] [Thread] [Top]

Re: caching magic

Tony Earnshaw wrote:

tor, 17.06.2004 kl. 22.47 skrev Howard Chu:
database    bdb
shm_key     5

This can go in DB_CONFIG:

No, that alone is not enough. If it were enough by itself, I would never have added this code to back-bdb. You also need to set the DB_SYSTEM_MEM flag when creating the environment, and this flag cannot be set in DB_CONFIG. Using the shm_key keyword tells back-bdb the key *and* tells it to set the flag when creating the environment.

Could you please indicate where setting DB_SYSTEM_MEM and any other
similar environment parameters is documented? Wish to read up on it :)

This is not a user-settable flag, it's part of the back-bdb code that invokes the BDB library. Go ahead and read up on DB_ENV->open for the details, but it is irrelevant if you're not writing actual C code. While this overall email thread may be relevant for OpenLDAP users, this particular keyword is not.
-- Howard Chu
Chief Architect, Symas Corp. Director, Highland Sun
http://www.symas.com http://highlandsun.com/hyc
Symas: Premier OpenSource Development and Support