On 11.4.2019 11.44, luckydog xf via dovecot wrote: > Hi, list, > > I'm going to deploy postfix + dovecot + CephFS( as Mail Storage). > Basically I want to use two servers for them, which is kind of HA. > > My idea is that using keepalived or Pacemaker to host a VIP, which > could fail over the other server once one is down. And I'll use > Haproxy or Nginx to schedule connections to one of those server based > on source IP( Session stickiness), I'll use VIP as DNS record.etc, is > my plan doable? > > I know MX could be server ones with different priority. But I think > it brings along shortage that DNS couldn't know Email server is up or > down, it just returns results to MUA, right? > > Thanks for any suggestions and ideas. > > -
You could use dovecot configured as director in the front, it would assign users to backends and maintain that to avoid accessing same users on two backends. Aki
