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тАО09-29-2006 03:57 PM
тАО09-29-2006 03:57 PM
Re: OpenVMS Job Scheduler - Recomendations
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тАО09-30-2006 12:03 AM
тАО09-30-2006 12:03 AM
Re: OpenVMS Job Scheduler - Recomendations
we essentially follow Steven's idea:
self re-submiiting batches.
To steer all kinds of scheduling, we wrote a DCL routine (made available at DCL.OPENVMS.ORG):
http://dcl.openvms.org/stories.php?story=04/10/15/8590853
@
What can be specified, and the correct syntax for specifications, is documented in the header of the routine.
hth
Proost.
Have one on me.
jpe
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тАО10-01-2006 12:36 PM
тАО10-01-2006 12:36 PM
Re: OpenVMS Job Scheduler - Recomendations
AUS 10 cents.
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тАО10-01-2006 08:43 PM
тАО10-01-2006 08:43 PM
Re: OpenVMS Job Scheduler - Recomendations
Whatever you use be careful about side efects.
1) how does the system react when you abort the job ? (jams abort the schedule of e.g. every 15 minutes too).
2) how does the system react when you manually submit the job file ? (jams starts the schedule, even when it was already active).
3) can you prevent 2 jobs with the same name (and work files) from running simultaniously ?
4) Can the scheduler handle job names for which the logical name is not cluster wide defined and how does it react in cluster failover ?
5) How do you know that a job was NOT started ?
6) How does it react on time changes ?
7) how does it react after a cluster down time of a few hours ? (jams starts all jobs at the same time).
Wim
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тАО10-02-2006 04:04 AM
тАО10-02-2006 04:04 AM
Re: OpenVMS Job Scheduler - Recomendations
We had over 20,000 batch jobs running per night at one of my former sites, and it ran like gangbusters.
We also did many system consolidations, and the ability to export a system's entire JAMS job and setup information, and then import it onto the target system saved us hundreds if not thousands of man-hours that keying all that stuff in would have involved.
Their tech support's great, too.
Wim is right about things you have to look out for, but most of those are going to be gotchas no matter which product you use.
WWWebb
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тАО10-10-2006 10:38 AM
тАО10-10-2006 10:38 AM
Re: OpenVMS Job Scheduler - Recomendations
Years ago when we made our decision to buy a scheduler these forums were not available.
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тАО06-12-2007 06:48 PM
тАО06-12-2007 06:48 PM
Re: OpenVMS Job Scheduler - Recomendations
John
john dot farmer at genworth dot com
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тАО06-12-2007 08:25 PM
тАО06-12-2007 08:25 PM
Re: OpenVMS Job Scheduler - Recomendations
regards Kalle
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тАО06-13-2007 09:28 AM
тАО06-13-2007 09:28 AM
Re: OpenVMS Job Scheduler - Recomendations
with so small amount of stuff on your
system, it might be a good time to upgrade
before you put too much on it (I'm stuck
at 7.2-1) for simple schduling I've always
just dcl'ed it. If I had 20000 jobs I wouldn't be using dcl! good luck -Dean
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