[Xymon] tasks.cfg - strange CRONDATE behaviour

[Andy Smith]

Jeremy Laidman wrote:
> On Tuesday, 3 June 2014, Jeremy Laidman <jlaidman at rebel-it.com.au 
> <mailto:jlaidman at rebel-it.com.au>> wrote:
> 
>     Interesting.  Does this only happen when the run timestamp is on or
>     near the start of each minute?  I'm testing this now, with a
>     CRONDATE specification of "*/2 * * * *" (to run every 2 minutes) but
>     I'm not seeing the same behaviour - it runs only once every 2
>     minutes.  I might have to wait until the run time drifts towards the
>     start of the minute to see the same thing as you. 
> 
> 
> Yep, when it drifted to 2 seconds after the minute mark I started seeing 
> my script run twice.  When 3 seconds after the minute, it only runs 
> once.  Although on one occasion when at 2 seconds past the minute, it 
> only ran once.
> 
> Tue Jun 3 15:48:03 EST 2014
> Tue Jun 3 15:50:02 EST 2014
> Tue Jun 3 15:50:59 EST 2014
> Tue Jun 3 15:52:03 EST 2014
> Tue Jun 3 15:54:02 EST 2014
> Tue Jun 3 15:54:58 EST 2014
> Tue Jun 3 15:56:03 EST 2014
> Tue Jun 3 15:58:02 EST 2014
> Tue Jun 3 16:00:00 EST 2014
> Tue Jun 3 16:00:57 EST 2014
> Tue Jun 3 16:02:02 EST 2014
> Tue Jun 3 16:04:00 EST 2014
> Tue Jun 3 16:04:57 EST 2014
> Tue Jun 3 16:06:00 EST 2014
> Tue Jun 3 16:06:58 EST 2014
> 
> etc.

Just to confirm, with a sleep in the script, my tasks ran only once.  It 
is not a solution I want to stick with going forward but I havent had 
time to look at the code yet to see why this might be happening.
-- 
Andy