synchronization problems

[Grzegorz Marszałek <graf0@post.pl>]

Hello!

I'm using slapd 2.4.9 on ubuntu. I've got one master, and many read- 
only slaves. Last week I've seen something very strage - I was  
"playing" with acls, and there was small window of time, when one  
slave couldn't see all entries I should on master. Problem is, that  
after fixing this problem in acls slave haven't synchronized properly  
(I could do ldapsearch at master from slave's shell and gen all  
entries, but local replica haven't this data). Reestarting slapd  
haven't helped. I have to stop slapd, delete everything but DB_CONFIG  
in /var/lib/ldap and start it again.

So my question is: what could create such a problem? And, more  
important: how can I monitor slapd slaves for such problems? Is there  
any ready solution for this (nagios plugins, or maybe just some script)?

Cheers
---
Grzegorz Marszałek
graf0@post.pl