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Ekos Scheduler did not wake up

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Ekos Scheduler did not wake up was created by Lee Peterson

I'm really enjoying kstars/ekos and finally have my hardware stable enough for everything to run all night.

Last night I tried to run two targets. One was scheduled to run from astronomical twilight to 2330, when it fell below the 20 degree limit my site requires. The other was scheduled to start at 0230 in the morning, when it rose above the 20 degree limit.

The first target was acquired perfectly. The mount parked as planned, and the system went to sleep. But it never woke up for the second target.

This morning it looked like everything was fine. There were no hardware errors in ekos or in the dmesg or in the syslog. Nothing had crashed, but the scheduler was still asleep.

Any ideas on what might have prevented the scheduler from waking? I have a watchdog, but it did not trigger and is currently set to not do anything. And the weather limits were perfect all night.
1 year 3 weeks ago #91586

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Replied by Hy Murveit on topic Ekos Scheduler did not wake up

Hard to answer without a log.
Please attach your log and it's possible the answer is in there.
Ideally the log would be in verbose mode, with the scheduler module (or better all the modules) checked.
E.g. like this:

1 year 3 weeks ago #91589
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Replied by Lee Peterson on topic Ekos Scheduler did not wake up

Very good point. I thought maybe it was obvious to some of you. I will enable verbose logs and re-try tonight. Thank you!
1 year 3 weeks ago #91590

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Replied by Hy Murveit on topic Ekos Scheduler did not wake up

Lee,

Now that you mention it, there is one thing I'd suggest you try.

The original scheduler algorithm could definitely do something like you're describing (it tries very hard to "complete" the higher priority job before starting the 2nd job, even if the higher priority one can't run). I added the "Greedy" algorithm which schedules jobs more like the way you'd expect (i.e. when one job can run and the other can't, it runs the one can run--even if it is "lower priority").

Please make sure you are using the "Greedy" scheduler algorithm. I honestly don't know of many situations where one would want to run the "classic scheduling algorithm". I've been tempted to remove the classic scheme, but never have. Perhaps I should.

Hy

1 year 3 weeks ago #91591
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Replied by Lee Peterson on topic Ekos Scheduler did not wake up

You know that might be it. I love the greedy scheduler and always enable it, but maybe since job 2 was second in the list ... I'll try making it the priority tonight, with verbose logs enabled, and see what happens.

Thanks!!
1 year 3 weeks ago #91592

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Replied by Hy Murveit on topic Ekos Scheduler did not wake up

If you were in fact using the greedy scheduler, then it should have done both no matter which job was higher priority. Do you have a log from last night?
1 year 3 weeks ago #91593

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Replied by Lee Peterson on topic Ekos Scheduler did not wake up

I have one, but there are about 100K lines about the mount debugging between the park command when it went to sleep, and when I woke it up in the AM. I've been debugging mount commands, but I will turn those off tonight. I will upload that log if there is a way to do that without polluting the chat. I don't see a way to upload the file independently of the chat. Is there?
1 year 3 weeks ago #91594

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Replied by Hy Murveit on topic Ekos Scheduler did not wake up

I believe you can attach the file to this thread. Another way is to upload it (google drive or dropbox for example) and add the public link to it here.
1 year 3 weeks ago #91595

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Replied by Lee Peterson on topic Ekos Scheduler did not wake up

Ah. If I use reply instead of quick reply it is an option. But unfortunately its size exceeds that allowed by this site. So I have temporarily assigned it to this public dropbox. Please let me know when you have it so that I can clean it out.

www.dropbox.com/s/ovqxlnj2e4cj9f2/log_20-42-15.txt?dl=0
1 year 3 weeks ago #91596

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Replied by Hy Murveit on topic Ekos Scheduler did not wake up

Got it, feel free to remove.
1 year 3 weeks ago #91597

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Replied by Hy Murveit on topic Ekos Scheduler did not wake up

Lee,

You log is fine. It shows the lines I need to see, and I don't understand why it didn't wake up at 2:33am on 4/1. It was planning to wake up then, but nothing happened between 23:39 and 6:16 when it woke up due to pre-dawn.
[2023-03-31T23:39:01.613 MDT INFO ][ org.kde.kstars.ekos.scheduler] - "Cygnus-Part_27\t04/02  02:37 --> 02:52 \tjob completion"
[2023-03-31T23:39:01.615 MDT INFO ][ org.kde.kstars.ekos.scheduler] - "Orion-Part_61\t04/01  20:51 --> 21:36 \tjob completion"
[2023-03-31T23:39:01.617 MDT INFO ][ org.kde.kstars.ekos.scheduler] - "Cygnus-Part_27\t04/01  03:54 --> 05:00 \ttwilight"
[2023-03-31T23:39:01.619 MDT INFO ][ org.kde.kstars.ekos.scheduler] - "Cygnus-Part_26\t04/01  02:33 --> 03:53 \tjob completion"
[2023-03-31T23:39:01.621 MDT INFO ][ org.kde.kstars.ekos.scheduler] - "Greedy Scheduler plan for the next 48 hours starting Fri Mar 31 23:39:01 2023 (0.04)s:"
[2023-03-31T23:39:01.630 MDT INFO ][     org.kde.kstars.ekos.guide] - "PHD2: Guiding started."
[2023-03-31T23:39:01.635 MDT INFO ][     org.kde.kstars.ekos.guide] - "Autoguiding started."
[2023-03-31T23:39:02.585 MDT INFO ][ org.kde.kstars.ekos.scheduler] - "Job 'Cygnus-Part_26' scheduled for execution at 01/04 02:33. Observatory scheduled for shutdown until next job is ready."
[2023-03-31T23:39:02.591 MDT INFO ][ org.kde.kstars.ekos.scheduler] - Starting shutdown process...
[2023-03-31T23:39:03.567 MDT DEBG ][           org.kde.kstars.indi] - ISD:Telescope: Parking... 
...
[2023-03-31T23:39:27.586 MDT INFO ][ org.kde.kstars.ekos.scheduler] - "Mount parked."
[2023-04-01T06:16:46.980 MDT INFO ][ org.kde.kstars.ekos.scheduler] - Scheduler is stopping...
Just a wild guess that there's something in all those logging interactions with the mount, but I doubt that's it.
I suppose try and run without all that indi/mount logging.
If you want, please share your .esl and .esq files with me and I'll see if I can re-recreate the issue in the simulator.

Hy
1 year 3 weeks ago #91598

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Replied by Lee Peterson on topic Ekos Scheduler did not wake up

That would not surprise me (retired hardware programmer from academia and NASA, et al). I will disable that logging and re-run tonight exactly from yesterday's schedule.esl
1 year 3 weeks ago #91599

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