[Dovecot] Can't start dovecot from heartbeat

[John Gray]

Timo Sirainen wrote:
> 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.

This is, it happens at startup.
> 
>> 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..

The kernel is 2.6.30.2 (I put 2.6.30.9 on the non-active server this
morning, but I haven't failed-over to it yet).

> 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.

Yes, its linux-ha.org heartbeat.  Its debian etch box.  The heartbeat
version is 1.2.5.

Thanks,
John