Pierangelo Masarati wrote :

Well, going back to your initial posting, I think you are somehow correct. ...

So I will use the simple configuration (only one syncrepl directive) for my production site.

.....

I set up a test system with your configuration, and loaded it very heavily, while running the server that's supposed to screw up under valgrind. I haven't seen any issue yet, though.

Neither me : When I run slapd with valgrind I cannot reproduce the problem ! Also if I run slap with detailed log I cannot reproduce it. Both cases slow down slapd !

Isn't this a problem of simultaneous (concurrent) access to the contextCSN memory zone ?

I will be on vacation for two weeks. Thanks for your help. Best Regards Ali