[Dovecot] Can't start dovecot from heartbeat

[Timo Sirainen]

On Nov 29, 2009, at 7:13 AM, John Gray wrote:

> I get the following error:
> 
> Fatal: epoll_create(): Too many open files (you may need to increase
> /proc/sys/fs/epoll/max_user_instances)
> 
> Works fine if I start it by hand, I'm guessing it has to due with the
> environment heart starts it in?

That happens immediately at startup? Yeah, there's something not set up correctly.

> My first thought was to do exactly what the message suggests, but my
> kernel doesn't appear to define max_user_instances, but there is a
> max_user_watches.

What Linux kernel version? Looks like the whole /proc/sys/fs/epoll/ doesn't exist in latest CentOS (2.6.18 kernel), even though epoll_create man page refers to it..

Anyway, I can't really help much. What heartbeat are you talking about? linux-ha.org's? Maybe they have some mailing list and can answer this.