dovecot - Nov 2013 - highly available userdb

On 11/12/13, Jan-Frode Myklebust <janfrode at tanso.net>
wrote:
> My installation is only serving 1/10 of your size, but long time ago we
> migrated off mysql for userdatabase, and over to LDAP. The MySQL data
> source had issues (not dovecot related), and didn't seem like the right
> tool for the job.

A database is a database, a master is a master, and a slave is a slave
our mysql has never had problem, not a single one, its why I'm so annoyed
dovecot is talking to master when it doesn't need to

On Wed, Nov 13, 2013 at 01:52:09PM +1000, Nick Edwards
wrote:
> On 11/12/13, Jan-Frode Myklebust <janfrode at tanso.net> wrote:
> > My installation is only serving 1/10 of your size, but long time ago
we
> > migrated off mysql for userdatabase, and over to LDAP. The MySQL data
> > source had issues (not dovecot related), and didn't seem like the
right
> > tool for the job.
> 
> 
> A database is a database, a master is a master, and a slave is a slave
And some databases are better for some tasks than others. F.ex. LDAP
gives dovecot free failover between servers. Handled in the ldap
libraries. One could argue that you should be complaining to the MySQL
developers about supporting server failover in the client library, and
not to Dovecot.
> our mysql has never had problem, not a single one, its why I'm so
annoyed
> dovecot is talking to master when it doesn't need to


  -jf