Re: [Dovecot] Inotify instance limit for user exceeded, disabling.

[Timo Sirainen]

On May 5, 2008, at 11:15 AM, Anders wrote:

Anders wrote:

What does the warning "Inotify instance limit for user exceeded,
disabling." mean, and how do I get rid of it? I assume that I have to
change a limit somewhere?

Okay, reading the source has me think that this is an OS limit, so I
increased /proc/sys/fs/inotify/max_user_watches

It says "instance limit", so I think the problem was max_user_instances instead.

Is there some way to calculate the upper limit? I imaging that each folder

in each connection needs a watch?

 - max_user_instances = max_mail_processes setting
 - max_user_watches = max_mail_processes setting*2

They're added when IDLE command is run. Only one IDLE command can be running at a time per each connection. With maildir it listens for two directories. But there is only one instance created per process. I guess you're using a single UID for all users? In that case the upper limits are:

PGP.sig
Description: This is a digitally signed message part