20 Apr
2017
20 Apr
'17
2:35 p.m.
Hi,
often I run into the situation where a dovecot server goes down for maintenance, and all users get concentrated in the remaining dovecot server (considering I have 2 dovecot servers only).
When that dovecot server comes back online, director server will send new users to it, but the dovecot server that was up all the time will still have tons of clients mapped to it.
I suggest the director servers to always try to balance load between servers, in the way:
- if a server has several more connections than other, mark it to re-balance
- when a user connected to this loaded server disconnects, map it to another server (that is per definition not the same server) immediately.
that way it would gracefully re-balance, not killing existing connections, just waiting for them to finish.
Thank you for your time.
Webert Lima MAV Tecnologia Belo Horizonte, Brasil.