Today's pop quiz: replication

Bron Gondwana brong at
Mon Aug 3 19:08:45 EDT 2015

On Fri, Jul 24, 2015, at 18:29, Michael Menge wrote:
> One possible problem I am seeing is that after a split brain, or
> switch of primary and replica for some users there might be some
> problems for renamed folders, subsciptions and folder annotations.
> Cyrus is able to handle changes on both sides in a mailbox  (new mail,
> deleded mail, changed mail) because of modseq, but this is missing for
> mailbox metadata.

I want to add this to all mailbox metadata (including sieve files,
quotaroot limits, etc), but it's a bunch of work.  We're part way there
with the mailboxes.db tombstones to help with rename detection, but the
support hasn't been added to the replication protocol yet.


  Bron Gondwana
  brong at

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