RE: Scheduler

The scheduler doesn't run the job when one is currently running by default and you can have the scheduler schedule the job for 30 minutes from completion rather than a fixed time.  

From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Mark W. Farnham
Sent: Wednesday, October 26, 2016 8:40 AM To: kevin.lange_at_optum.com; Oracle-L_at_freelists.org Subject: RE: Scheduler  

It would seem extreme to buy E-biz just for the scheduler. I'm not sure *why* Oracle does not expose that rich functionality. Perhaps they are satisfied with the capabilities of the built-in scheduler they have. I've never tried to buy or have a customer buy just the apps tech stack without any of the functional products. I don't know if it is even possible.  

The specific schedule: Start me x amount of time after I finished, but not before y amount of time since my last start seems like a basic requirement to me. So much so that it was in the MOSES papers. A little more advanced is trying to creep back or skip to a preferred minute of the hour start (which can be important to avoid job storms exactly on the hour, for example.)  

Once upon a time Jeffrey Pugh built a great scheduler, sold it, that company got bought, etc., and I think the last chain of custody was CA, but I think you have to buy their whole suite to get it.  

It might be worth a try to unbundle it. Maybe Steve Lemme has a clue.  

Without knowing whether a good scheduler is available for sale or if there is already an open source decent solution, I hesitate to suggest a group effort to build one.  

mwf  

From: oracle-l-bounce_at_freelists.org <mailto:oracle-l-bounce_at_freelists.org> [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Lange, Kevin G Sent: Tuesday, October 25, 2016 6:08 PM
To: Oracle-L_at_freelists.org <mailto:Oracle-L_at_freelists.org> Subject: Scheduler  

Database: Oracle 12.1.0.2

OS: Linux  

I have a condition on multiple databases where a job runs for different lengths of time depending on the size of the particular database. What I need is to be able to schedule a job to run multiple times during the day but ONLY if two conditions are met:

1. IF it has not ran in the last 30 minutes.
2. IF it is not currently running.

So basically, I need to be able to code the Oracle Scheduler correctly with a varying start time on the job that looks to see if its not running now and if there is at least 30 minutes since it last ran.    

Anyone have any GOOD Oracle Scheduler resources that can help me set up those kind of dependencies without having to rely on any kind of flag or storage history ? (Just a link to a location that I can study up on would be fine).  

I do have ways to do this, but I was hoping for a nice elegant solution using just the scheduler itself.  

Thanks in advance  

Kevin Lange

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