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ProfileTom Donlon
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Message 70498 - Posted: 1 Feb 2021, 17:54:13 UTC

Hey Everyone,

The MilkyWay server will be going down from 4PM today until midnight. After this outage, we should have the server up and running as normal, and the workunit generation issue will hopefully be solved.

Best,
Tom
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Holdolin

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Message 70499 - Posted: 1 Feb 2021, 18:10:03 UTC - in response to Message 70498.  

Thanks for the heads up and your work. Much appreciated.
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ProfileSiran d'Vel'nahr
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Message 70500 - Posted: 1 Feb 2021, 18:16:07 UTC - in response to Message 70498.  

Greetings,

Thanks for the notification on maintenance, Tom. :)

Have a great day! :)

Siran
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ProfileTom Donlon
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Message 70501 - Posted: 2 Feb 2021, 4:43:30 UTC

The server is back up after some tweaking of the server's database. Hopefully that fixes the problems that we were having. We are currently monitoring the system, and I will have more info for you all tomorrow.

- Tom
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Message 70503 - Posted: 2 Feb 2021, 7:53:16 UTC - in response to Message 70498.  

Greetings,

Thank you for informing us :]
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Message 70504 - Posted: 2 Feb 2021, 11:21:40 UTC

There are still no workunits for Milkyway@Home in BOINC, even the waiting ones disappeared! Quitting, restarting and updating Milkyway@Home are without effect.
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Message 70505 - Posted: 2 Feb 2021, 14:05:52 UTC

Same, still nothing, and server status lists none available. But it doesn't even seem to connect properly, because I changed the project resource share and it doesn't update.
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Message 70506 - Posted: 2 Feb 2021, 14:34:14 UTC

I checked my tasks list and I have a lot of "cancelled by server" notations. Is this part of the usual restart procedure?


Plus SETI Classic = 21,082 WUs
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Message 70507 - Posted: 2 Feb 2021, 14:42:38 UTC - in response to Message 70506.  

Still seeing no new tasks as of this writing.
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ProfileTom Donlon
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Message 70508 - Posted: 2 Feb 2021, 15:02:02 UTC
Last modified: 2 Feb 2021, 15:02:38 UTC

We fixed the problem with the work generators, but our fix seems to have caused a problem with the transitioner, which means that no new workunits are going out at the moment. We will have to do some server maintenance again in the near future to fix this, and I'll update you all with details when I know more.

This is a problem caused by running out of valid workunit IDs (since you all have crunched over 2 billion workunits!) so we had to reset the entire database ID count and delete old workunits. As a result, there are some residual ID mismatches that we are trying to find and sort out. The transitioner was working as of midnight last night, but it seems to have switched off sometime in the early morning.

Thanks for your patience,
Tom
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Message 70509 - Posted: 2 Feb 2021, 16:09:24 UTC - in response to Message 70508.  

Let me guess, we crunched 2,147,483,647 work units lol. Might I suggest you plan for this eventuality, as it will happen again and more quickly as GPUs will continue to get faster and faster. Without knowing how your DB is set up, or even what DB you are using I could not begin to offer a solution but would be happy to have a look if y'all have room for another volunteer :)
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ProfileTom Donlon
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Message 70510 - Posted: 2 Feb 2021, 16:25:13 UTC - in response to Message 70509.  
Last modified: 2 Feb 2021, 16:29:43 UTC

Yup, you got it. I don't think the Boinc framework really planned on encountering this problem. This happened to a different table in the past, so we are aware of the issue, but as far as I can tell other projects haven't hit this limitation yet.

We are discussing ways to prevent this problem in the future. The simplest "fix" would be to change the Primary Key of each affected table to a BIGINT instead of an INT, which we may end up doing at some point in the future once things are working again.
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Message 70513 - Posted: 2 Feb 2021, 20:54:27 UTC - in response to Message 70510.  
Last modified: 2 Feb 2021, 20:55:06 UTC

I believe that was SETI@HOME's solution (64 bit INT).. (The joys of success!!)

Ed F
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Message 70514 - Posted: 3 Feb 2021, 13:45:56 UTC

All looks good on this user's end. Crunching again.
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Message 70515 - Posted: 3 Feb 2021, 14:16:22 UTC

Yep, seems all right for me too. Crunching WUs nicely.
Thanks for sorting this out!
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Message 70516 - Posted: 3 Feb 2021, 14:42:58 UTC

Well, it's working in the idea that I'm getting work, but only a couple WU's at a time.
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Message 70529 - Posted: 3 Feb 2021, 19:08:55 UTC

Plenty of work and verifying just fine so far.


Plus SETI Classic = 21,082 WUs
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