LDAP indexing problems

Hi all,

Recently I converted my ISPMan LDAP databased from DBM to LDBM, since 
the DBM was corrupting itself and causing tons of grief.

Converting was a simple matter of nuking /var/lib/ldap, and using 
slapadd to restore from a slapcat backup. Everything seemed to perform 
as fast or better then before, no errors, email worked fine, and so on.

However, now whenever a user's details (password, name, quota, etc) is 
changed using the ISPMan admin control panel, that user can no longer 
login. Some poking around with ldapsearch proves that a search for 
"(uid=username_domain_tld)" has no results.

My workaround has been to set slapd to readonly mode, run slapindex, 
then disable readonly mode :-(

After running slapindex, that user object seems to be permanently fixed. 
Further password/etc changes don't break the lookups.

Any ideas on what might actually be happening?  The only things that 
have changed is that back_ldbm.so is being used instead of back_bdm.so, 
the database type is changed, and the database itself was rebuilt. 
Indexing is identical to that in the default ISPMan slapd.conf.

Thanks in advance,

Wim



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