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Re: OpenLDAP + RHEL4 - time to time database crash (BDB backend)

I found out a few things that might cause the problem but I do not
have enough experience to judge which one is the most likely:
- bdb database tuning, meaning I should configure checkpointing,
cachesize, idlcachesize etc. - I'll refer to faq-o-matic for some
clues about the possible values;
- running db_checkpoint (uid same as slapd's uid) (but how often?)

I am using 2.3.7 but here is my configs for bdb tuning.

checkpoint, cachesize, idlcachesize goes slapd.conf. Don't need to run db_checkpoint manually.

cachesize	50000
idlcachesize	150000
checkpoint	1024 5
(that says to flush to disk every 1M or 5 minutes)

Berkely DB environment goes in DB_CONFIG in your bdb directory ie: /var/db/openldap-data

set_cachesize 0 536870912 1
set_lg_regionmax 1048576
set_lg_bsize 2097152
set_lg_max 10485760

(Note DB_LOG_AUTOREMOVE only works if using bdb 4.2 w/ the supplied patch by openldap or bdb 4.3)