Hi,

I'm having some problems with fedora-ds and postfix in a high-rate environment.  First, let me say that we are migrating from openldap-1.2.2 to Fedora-DS.   The configuration with postfix+openldap has to be migrated to fedora-ds and the postfix+openldap works great in the high-rate environment.   I have a relay_recipient_maps and a alias list which both use ldap.      However, ldaps connections (and ldap) connections to fedora-DS seem to time out in a high-rate environment.  In slow-rate environment were there are a few 10s of emails an hour, things work fine.   In the high-rate where you receive 1-5 of emails per second, I am seeing lots of temporary lookup failures.  My configuration looks exactly like the POSTFIX Wiki configuration on the directory.fedoraproject.org/wiki page.  

We did some debugging to  take a look at postfix, which attempts to open a connection to the ldap server and does, then it wants to perform multiple lookups per connection but this doesn't work--it seems for some reason that postfix is unable to do more than one lookup per connection.    The fedora-DS ends up with many connections from postfix which eventually time-out.  

Any ideas as to what could be wrong?

Thanks,
Jeff