Re: Odd MMR behaviour with delta-syncrepl and refreshAndPersist

[Quanah Gibson-Mount <quanah@zimbra.com>]

--On Wednesday, June 15, 2016 1:59 PM +0100 Mark Cairney 
<Mark.Cairney@ed.ac.uk> wrote:

> Hi Quanah,
>
> I can confirm I still see the issue when deleting and adding user
> objects and groups using 3-way delta-MMR.

Please keep replies on the list.

> From one of the servers receiving the change:

[snip]

> I spotted the reference to "cn=marksgroup2" in the log above so decided
> to try it with an objectclass that has no group memberships managed by
> the memberOf overlay (simplesecurityobject) and it worked as expected:
>
> Again from the consumer I see the following logged:

[snip]

> So it looks like there's possibly an additional effect being caused by
> the memberOf overlay but as about 90% of our LDAP writes are the
> creation/modification/deletion of users and groups this could be a pain
> on a production system :-)
>
> Is this enough for you to go on? If there's any additional logging or
> details of my config I'm happy to pass them on.

I dropped your replication log bits in case there was anything sensitive in 
there.

I agree, it looks like the memberof overlay is breaking replication in your 
case.  I would suggest filing an ITS with details on your setup, and the 
logging you provided, obfuscated as necessary.

--Quanah



--

Quanah Gibson-Mount
Platform Architect
Manager, Systems Team
Zimbra, Inc.
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