Hi!
Reading https://kb.symas.com/en_US/configuration/configure-delta-syncrepl I found some issues:
1. In "Chaining Overlay" there is a an extra "i" in "dn: olcOverlay={0}chain,olcDatabase={-1}frontend,cn=config i" 2. The syncrepl for "Multi-Master Replication (MMR)" still uses "mirrormode" 3. "Syncrepl" for MMR and cn=config is formatted badly (compared to slapd.conf version)
Also for MMR there is a syncprov defined for the database to sync and the accesslog for that database. Why is syncprov for accesslog needed?
Kind regards, Ulrich Windl
On Fri, Mar 21, 2025 at 06:07:41AM +0000, Windl, Ulrich wrote:
Hi!
Reading https://kb.symas.com/en_US/configuration/configure-delta-syncrepl I found some issues:
Hi Ulrich, I don't think a project mailing list is the right forum to request changes to a non-project resource. Indeed that page seems to have a "Give feedback" feature.
Also for MMR there is a syncprov defined for the database to sync and the accesslog for that database. Why is syncprov for accesslog needed?
If you're asking why that's needed, read up on how deltasync works and it will generally become self-evident. In short, the accesslog DB *is* the source of changes once the "delta" part kicks in.
Regards,
Ondřej,
Tanks for explaining. I must admit that I was happy go get syncrepl working many years ago. For delta-syncrepl I had thought the combination of accesslog (write changes) on the source database and logbase in syncrepl (read changes) were enough. I must admin that I still didn't quite understand the relationship between refreshAndPersist and the delta-syncrepl; somehow I thought refreshAndPersist is a fall-back whenever delta-syncrepl fails (for watever reasons). So I need a syncprov on the original database for refreshAndPersist, and one for the accesslog used by delta-syncrepl? And the syncprov is actually a trigger for database changes?
Kind regards, Ulrich Windl
-----Original Message----- From: Ondřej Kuzník ondra@mistotebe.net Sent: Friday, March 21, 2025 12:28 PM To: Windl, Ulrich u.windl@ukr.de Cc: openldap-technical@openldap.org Subject: [EXT] Re: Notes on https://kb.symas.com/en_US/configuration/configure-delta-syncrepl
On Fri, Mar 21, 2025 at 06:07:41AM +0000, Windl, Ulrich wrote:
Hi!
Reading https://kb.symas.com/en_US/configuration/configure-delta-syncrepl I found some issues:
Hi Ulrich, I don't think a project mailing list is the right forum to request changes to a non-project resource. Indeed that page seems to have a "Give feedback" feature.
Also for MMR there is a syncprov defined for the database to sync and the accesslog for that database. Why is syncprov for accesslog needed?
If you're asking why that's needed, read up on how deltasync works and it will generally become self-evident. In short, the accesslog DB *is* the source of changes once the "delta" part kicks in.
Regards,
-- Ondřej Kuzník Senior Software Engineer Symas Corporation http://www.symas.com Packaged, certified, and supported LDAP solutions powered by OpenLDAP
openldap-technical@openldap.org
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Ondřej Kuzník -
Windl, Ulrich