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openldap-software: Interesting delta-syncrepl failure

Interesting delta-syncrepl failure

From: Francis Swasey <Frank.Swasey_at_nospam>
Date: Wed May 05 2010 - 14:31:48 GMT

Platform: Red Hat Enterprise Linux 5, update 5, 64-bit
OpenLDAP: 2.4.22 (locally compiled), configured with delta-syncrepl.

The following modify ldif successfully applies to the master:

dn: uid=fcswasey,ou=People,dc=uvm,dc=edu
changetype: modify
replace: sn
sn: Swasey
replace: sn
sn: Swasey

In OpenLDAP 2.3 -- this modify ldif deck failed because the "sn"
attribute is presented twice. In OpenLDAP 2.4 -- it works, but the
delta-syncrepl replica pukes on it with this error:

syncrepl_message_to_op: rid=100 mods check (sn: value #0 provided more
than once)

If the OpenLDAP 2.4.22 server accepts it, processes it, and feeds it out
-- shouldn't the OpenLDAP 2.4.22 delta-syncrepl consumer eat it without

-- Frank Swasey | Sr Systems Administrator | Always remember: You are UNIQUE, University of Vermont | just like everyone else. "I am not young enough to know everything." - Oscar Wilde (1854-1900)