67696 - LDAP replication could ignore dup DNs in changelog

Status: NEW

(MailNews Core :: Address Book, defect)

Description

[Phil Peterson]

This bug is a placeholder for an optimization to consider for LDAP replication.
The original root of this bug is:
http://scopus.netscape.com/bugsplat/show_bug.cgi?id=334179

When we're reading the changelog and pulling the DN for each change, it would be
nice if we had some way to remember that we'd pulled a DN recently, and not pull
it again. Apparently, some customers have usage models where the same DN
appears in the changelog several times in a row, and we ask for the same entry
multiple times.

In the 4.x code, we only knew one DN at a time, but we might be able to keep a
cache of the last 50 or so DNs (but not the whole entry) on an LRU basis to make
this problem smaller. Obviously, keeping every DN we've seen in memory would be
expensive.

Comment 1

[Phil Peterson]

*** Bug 7743 has been marked as a duplicate of this bug. ***

Comment 2

[Jussi-Pekka Mantere]

Moving to Future, as this doesn't yet apply to any code that's in the tree (ie we 
don't do replication yet).

Comment 3

[Dan Mosedale (:dmosedale, :dmose)]

Assigning bugs that I'm not actively working on back to nobody; use SearchForThis as a search term if you want to delete all related bugmail at once.