[Bug 326768] Re: mysqld_safe thinks mysqld has crashed when it hasn't

[Mathias Gug]

Hi Will,

On Mon, May 11, 2009 at 01:35:31AM -0000, Will Uther wrote:
> I also looked in the logs to see what was happening on boot with the
> change and I noticed:
> 
> May 10 11:02:55 willvo sshd[2981]: Received signal 15; terminating.
> May 10 11:02:55 willvo ntpd[3721]: ntpd exiting on signal 15
> 
> but both seem to be running.  Postfix also reloads its configuration.
> Is someone (upstart?) telling all daemons to reload their configs for
> some reason?

Thanks for figuring this out. This is probably the root cause of the
issue. I've seen similar behavior with sshd - could you describe your
network configuration? Are you using network-manager or
/etc/network/intrefaces? Are you using a static configuration or rely on
dhcp?

> It seems there are two problems here - the signal being sent, and
> mysqld_safe poor response to receiving it.  It would be nice to get to
> the bottom of each of them.
>

Agreed. It seems that the latter has been identified and a workaround is
described in this bug. I think the former should also be well understood
before pushing anything to a *stable* release. A known broken behaviour
with a workaround is better then pushing an update that breaks existing
production systems.

-- 
Mathias Gug
Ubuntu Developer  http://www.ubuntu.com

-- 
mysqld_safe thinks mysqld has crashed when it hasn't
https://bugs.launchpad.net/bugs/326768
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