Hi Alexander,

El Fri, 28 Jun 2013 08:24:30 +0200
Alexander Wagner <[email protected]> escriguĂ©:

> On 27.06.2013 16:28, Ferran Jorba wrote:
> 
> Hi!
> 
> [...]
> > One very curious behaviour is that the first task after midnight
> > switches to SCHEDULED state but doesn't run.
> 
> Strange indeed. However, the guys at RWTH had something similar with a
> cron job that seemed to put bibsched to manual operation. I'm not sure
> if it still persists, but it's nasty as well.
> 
> > I get the friendly daily mail as such:
> >
> >   Emergency from http://ddd.uab.cat: BibSched halted: Process
> > bibsort (task_id: 140997) was launched but seems not to be able to
> > reach RUNNING status.
> >
> > Anyhow, I needed a mechanism to automate my daily manual task to put
> > bibsched into manual mode, know which is the task in SCHEDULED
> > state, run it and put bibsched back to automatic mode.
> 
> Out of sheer curiosity: does putting bibsched to manual and run the
> task really put to running status? I wonder how that could work.

It really works, on both machines.  bibsched has too magic for me to
understand it well, so I cannot provide an answer.

> Sounds like a deeper problem, cause (without knowing the internals of
> bibsched) this is exactly what bibsched is supposed to do
> automagically, right? It shounds a bit strange, that hooking up a
> scheduler with another scheduler (cron, I guess ;) makes the first
> one working.

That's why I also suspect about having two bibscheds in the same
server.  But I tried to stop one of them completely (in my test server)
but the behaviour didn't change.  As a matter of fact, going more into
details, in one server the stucked job happens just before midnight and
in the other just after midnight.

Deep black magic.

[...]
> How compares bibsched --mode to bibsched stop/start?

Been there, done that.  If it worked, I had not patched it.  What it
does is remove the status SCHEDULED back into WAITING, but the job does
not work either.

> Do you know how much of your stuff could be accomplished by these
> bibtasklet stuff?

I haven't taken the time to learn about them, so I have no opinion,
sorry.

Anyway, do you think that this extra funcionality would be useful to
you?  The interface is clear, or you'd prefer other names?

Ferran

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