Re: [Devmon] devmon keeps going purple

[Buchan M. <bg...@st...>]

On Thursday, 11 March 2010 08:15:18 Stef Coene wrote:
> On Thursday 11 March 2010, Buchan Milne wrote:
> > If the problem persists, watch to see if the dm test for the polling
> > device goes yellow or red, or polled devices go purple, and provide the
> > log contents for at least the last two poll cycles before any of these
> > changes (or, the relevant problems).
> 
> For debugging, maybe you can trap a USR signal and dump the internal status
> information in the logfile.  So when the status turns purple, you can debug
>  the running process.

Let's first see if the problem is fixed or not, and if not if the logging shows 
(over a period of hours) what happened.

Note that the changes to the dm test show enough (IMHO) of what the master 
knows about the forks. As far as I can tell, the forks end up just waiting for 
the master to give them something to do, so there would be very little useful 
information they could give us ...

> I also use this myself to force a process to re-read it's config files and
>  re- open the log files.

I've used HUP re-opening log files, config reading is done by running a separate 
process to populate the db, and the db is read on every poll interval, I don't 
see much benefit to changing other configuration on a running process.

Really, someone who can reproduce this within a regular interval needs to test 
the current svn version.

Regards,
Buchan