postfix-users October 2010 archive
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postfix-users: Re: some watchdog timeout

Re: some watchdog timeout

From: Patrick Proniewski <patrick.proniewski_at_nospam>
Date: Sun Oct 10 2010 - 08:33:35 GMT
To: Postfix users <postfix-users@postfix.org>

On 10 oct. 2010, at 02:41, Wietse Venema wrote:

> Postfix daemons terminate voluntarily when they receive no request
> for $max_idle seconds. The watchdog timer is a safety mechanism;
> it terminates a process when it appears to hang.
>
> The $max_idle timer uses select(2), poll(2), epoll(3) or /dev/poll
> depending on the operating system type and version. Failure of this
> timer is usually a symptom of virtualization bugs.

That's interesting! Thank you. The FreeBSD server running those postfix is a virtual machine on top of VMWare ESXi, and running VMWare Tools.
I'll try to get some support from VMWare (and FreeBSD users), but if someone here has an idea (vmware issue? bios tuning? freebsd tuning?...) I'd be happy to read about it.

thanks,

Patrick PRONIEWSKI
-- Administrateur Système - SENTIER - Université Lumière Lyon 2