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Performance Problems
We are testing openldap 2.1.8 as a slave in our production enviroment. We
have experienced serveral problems. I am wondering if other people are
experiencing the same problems or if they have solved some of these
problems.
Some notes about configuration:
* have about 20,000 entries--mostly "people" entries
* using BDB backend (db4-4.0.14-14 installed)
* indexing several fields:
index objectClass pres,eq
index uid pres,eq,sub
index uidNumber pres,eq
index gidNumber pres,eq
index mailacceptinggeneralid eq
index apuidnumber eq
index rid eq
1. slapadd is *very* slow compared to the using slapadd with back-ldbm on
openldap 2.0.25. slapadd now takes about 45 minutes, whereas it used to
take about 4 minutes. The only way I have found to fix this, is to
slapadd with all the indexes turned off. Which leads to my next
point...
2. slapindex is *very* slow. It takes about 45 minutes to reindex. It
doesn't matter if slapd is running or not. It still take forever.
3. My "uidNumber" index is corrupt. I rebuilt the database from an LDIF
when I upgraded the slave to 2.1.8, so there still must be index
corruption issues.
Anyone else experiencing this? Anyone have ideas on what might be going
on? I have never had OpenLDAP behave this slowly on me before.
- Christoph