I'm using openldap 2.4.11 on linux x86 system, with one database bdb backend, with the following options in slapd.conf file:
database bdb [..] dbnosync cachesize 1000 checkpoint 0 0 [..]
You should set non-zero checkpoints, or there is no guarantee that you will have any data after unexpected shutdown.
Is it possible to disable bdb log.00000[0..n] files completely?
Yes, but that is a bad idea.
I can slapcat the database, then remove these, slapadd and reindex database, and there's no logs, but is it possible to avoid creating them? Or set up some limit of numer/size of them?
In your DB_CONFIG add
set_flags DB_LOG_AUTOREMOVE
This will cause transaction logs to be removed after they are no longer necessary for db recovery. (typically 2-6 10MByte logs will exist)
Additionally - when I have a "DB_CONFIG" file in /etc/ldap, and a DB_CONFIG file in database storage dir, e.g. /var/lib/ldap, which one is actually used? My guess'd be /var/lib/ldap/DB_CONFIG, but I'd like to know for sure :-)
DB_CONFIG only configures BDB; it must be in the database environment directory.
You can use symbolic links to point to it from other locations, however.
Matthew Backes Symas Corporation mbackes@symas.com