Re: Adding read-only consumers to a Mirror Mode Replication setup?
--On Thursday, October 18, 2018 11:10 AM +0200 Michael Ströder
<michael(a)stroeder.com> wrote:
On 10/18/18 1:41 AM, Quanah Gibson-Mount wrote:
> I've had setups with 2-node MMR on the front, and read only consumers.
> It works just fine, as long as any given consumer only points to one
> master. Theoretically, it's supposed to work so that consumers can point
> to more than one master in an MMR setup, but my experience didn't match
> that (<http://www.openldap.org/its/index.cgi/?findid=8373>).
There's no config in ITS#8373.
But you mention accesslog DB.
Does that mean your setup used delta-syncrepl?
Yes. It was simply a standard Zimbra MMR deployment.
If yes, does that issue also apply to normal syncrepl?
No idea. I generally consider "normal" syncrepl unsafe as using it can
lead to data loss. I use delta-syncrepl exclusively because of this, with
a focus on eliminating all scnearios in which it might fall back to
"normal" syncrepl. (See
<http://www.openldap.org/its/index.cgi/?findid=8125> for example).
--Quanah
--
Quanah Gibson-Mount
Product Architect
Symas Corporation
Packaged, certified, and supported LDAP solutions powered by OpenLDAP:
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