dovecot - Dec 2011 - database failover

Trying to get dovecot to _only_ use local copy of database, only querying
another database server (same database, just replicated) if local copy is
not responding, I have google fu'd a bit and found my only answer in so far
as dovecot did this once upon as time, but it was only due to a dovecot
bug, that has since been fixed, is that so?
The wiki shows no information of failover, just load sharing, or is it an
undocumented feature, or can dovecot not do failover, if not, can it be
made so?

Trying to cut down on network traffic, postfix does this nicely, I thought
dovecot did too.

Am 10.12.2011 11:07, schrieb Nick Edwards:
> Trying to get dovecot to _only_ use local copy of database, only querying
> another database server (same database, just replicated) if local copy is
> not responding, I have google fu'd a bit and found my only answer in so
far
> as dovecot did this once upon as time, but it was only due to a dovecot
> bug, that has since been fixed, is that so?
> The wiki shows no information of failover, just load sharing, or is it an
> undocumented feature, or can dovecot not do failover, if not, can it be
> made so?
> 
> Trying to cut down on network traffic, postfix does this nicely, I thought
> dovecot did too.
> 
as far i know recent dovecot cant do it
youre right postfix does

you can do a master-master setup i.e with mysql
solving this
works nice here, but might not be the best solution
perhaps ldap, or other databases are better
-- 
Best Regards

MfG Robert Schetterer

Germany/Munich/Bavaria

On 10.12.2011, at 12.07, Nick Edwards wrote:
> Trying to get dovecot to _only_ use local copy of database, only querying
> another database server (same database, just replicated) if local copy is
> not responding, I have google fu'd a bit and found my only answer in so
far
> as dovecot did this once upon as time, but it was only due to a dovecot
> bug, that has since been fixed, is that so?
> The wiki shows no information of failover, just load sharing, or is it an
> undocumented feature, or can dovecot not do failover, if not, can it be
> made so?
> 
> Trying to cut down on network traffic, postfix does this nicely, I thought
> dovecot did too.
You could add two passdbs + userdbs with different configs. The second dbs would
be used when first db is down, but also for unknown users / wrong
authentications.

But yeah, the load balancing should be optional. There are just so many other
things to do as well..