Panic Mode On (113) Server Problems?

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Grant (SSSF)
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Message 1965696 - Posted: 16 Nov 2018, 23:06:36 UTC - in response to Message 1965635.  

Well, if nothing else someone threw up a load of tapes sufficient to get through the weekend, by the looks of it ...

As long as the system doesn't choke on the Validation/Assimilation backlogs.
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Message 1965704 - Posted: 17 Nov 2018, 0:06:36 UTC - in response to Message 1965640.  

I think the conclusion is that "no one" threw any new tapes onto the splitters. The Arecibo tapes are auto-mounted automatically by a script. Probably the Green Bank tapes too but not sure since I didn't see the post saying that GBT had a permanent lab connection.


. . I remember some discussion about trialling one and deciding it was too expensive so it was dropped. I haven't seen anything since to say that it had been reinstated. There were many volunteers offering to share bandwidth and relay the data to Berkeley but obviously none were taken up. There was also mention of trying to feed it via an internet connection but it was waaay too slow and also worked out very expensive. So I am guessing he was right and someone (thank you) actually took part in the mounting of the additional tapes.

. . But all is for nought if the validators remain stalled and a logjam brings the splitters to a halt as before. For that matter the no14aa tape seems stuck as well.

Stephen

? ?
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Message 1965709 - Posted: 17 Nov 2018, 0:30:25 UTC - in response to Message 1965704.  

Well Richard's post said the Arecibo files are automatically loaded remotely by a script. So I guess they could afford the permanent connection to AO but not the permanent connection to GBT.
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Message 1965730 - Posted: 17 Nov 2018, 1:59:29 UTC - in response to Message 1965704.  
Last modified: 17 Nov 2018, 2:21:56 UTC

. . But all is for nought if the validators remain stalled and a logjam brings the splitters to a halt as before. For that matter the 14no18aa tape seems stuck as well.


. . Correction ...

Stephen

:(
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Message 1965731 - Posted: 17 Nov 2018, 2:05:25 UTC - in response to Message 1965709.  
Last modified: 17 Nov 2018, 2:16:17 UTC

Well Richard's post said the Arecibo files are automatically loaded remotely by a script. So I guess they could afford the permanent connection to AO but not the permanent connection to GBT.


. . Yep, he did say they have a link to AO. That was not mentioned in the other discussion that I recall but they did say they were investigating getting a piggyback over some other government network. Maybe they were able to do that for AO, so maybe they managed it for GBT as well but that is purely speculation. But since they only seem to be getting 1 or 2 AO tapes per day they may have a cheap low bandwidth link that can support that amount of data. GBT data is far more prolific and would require some serious bandwidth. Even if the roughly 100 tapes that are being mounted in each of the series we have seen lately represent a weeks effort that is about a dozen tapes per day and could be fairly costly bandwidth. Maybe some kind soul will find the time and post about the actual details of their setup.

Stephen

? ?
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Message 1965815 - Posted: 17 Nov 2018, 14:07:21 UTC
Last modified: 17 Nov 2018, 14:29:34 UTC

Sat 17 Nov 2018 09:02:40 AM EST |  | Project communication failed: attempting access to reference site
Sat 17 Nov 2018 09:02:40 AM EST | SETI@home | Scheduler request failed: Timeout was reached
Sat 17 Nov 2018 09:02:42 AM EST |  | Internet access OK - project servers may be temporarily down.


Get this answer when the host ask for new WU.

Something to turn ON the Panic Switch?

<edit> Back to work normally now.
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Message 1966013 - Posted: 18 Nov 2018, 10:01:25 UTC - in response to Message 1965563.  


edit: ok, I see it now. it isn't cleaning up. my list of valids is way too long. more than the 24 hour standard. just as was said in previous post, it will go boom at some point, but for now is still running.

I've got a number of completed WUs dated 11/14 as well in my valid list. Agree with Grant that need to keep are fingers crossed that servers will hold out for the weekend!
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Message 1966135 - Posted: 19 Nov 2018, 8:33:13 UTC - in response to Message 1965731.  
Last modified: 19 Nov 2018, 8:40:08 UTC

Well Richard's post said the Arecibo files are automatically loaded remotely by a script. So I guess they could afford the permanent connection to AO but not the permanent connection to GBT.

. . Yep, he did say they have a link to AO. That was not mentioned in the other discussion that I recall but they did say they were investigating getting a piggyback over some other government network. Maybe they were able to do that for AO, so maybe they managed it for GBT as well but that is purely speculation. But since they only seem to be getting 1 or 2 AO tapes per day they may have a cheap low bandwidth link that can support that amount of data. GBT data is far more prolific and would require some serious bandwidth. Even if the roughly 100 tapes that are being mounted in each of the series we have seen lately represent a weeks effort that is about a dozen tapes per day and could be fairly costly bandwidth. Maybe some kind soul will find the time and post about the actual details of their setup.
Stephen


. . Hi Keith, have you seen your fund raiser e-mail yet? Interesting timing. So the link to Arecibo is not a permanent data link but a virtual link over the internet as was proposed in the previously mentioned discussion.

. . The most exciting part of the letter is the information that data from Parkes is in house and about ready for the splitters. With all the GBT tapes mounted at the moment it will probably still be a while before we begin to see them but sooner now rather than later.

. . So many questions soon to be answered. Will they use the same BLC naming format as GBT? Will they use the same data format and will they process as the same rate or be slower? Will the target rich skies produce a higher rate of overflows (late not early) and will the nature of the area have a bigger noise problem?

. . They are still asking for more crunching power so maybe it is time for yet another Ryzen rig with a few GTX2080ti cards this time :). Sadly I have doubts that the servers can currently handle the load that a significant leap in processing power would produce ... :(

Stephen

:)
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Message 1966136 - Posted: 19 Nov 2018, 9:37:27 UTC

Given that the "telescope end" of the feed chain is based on that used for generating the data from Green Bank it is quite possible that the data format is the same, with just a different prefix code for the work unit name.
It will certainly be an interesting step, something from a "long way South", and a second "horizon to horizon" telescope. Actually about the same latitude as the GBT, just South rather than North of the equator.
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Message 1966168 - Posted: 19 Nov 2018, 16:37:10 UTC - in response to Message 1966136.  

@Stephen, actually I think I was one of the first to receive the donation email letter and posted about it.https://setiathome.berkeley.edu/forum_thread.php?id=83560
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Message 1966312 - Posted: 20 Nov 2018, 5:53:16 UTC

Things seem to be holding well with over 1.3 million results waiting in the administrator queue. It will be interesting to see if it has any knock-on effect when it is cleared apart from more results unable to be deleted. Or maybe is this the new normal with the current throughput of work?
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Message 1966331 - Posted: 21 Nov 2018, 2:54:51 UTC
Last modified: 21 Nov 2018, 2:56:11 UTC

The forums are back, now to see if there's any life with the servers.

Reporting is possible, "Projects has no new tasks" is the response to work requests.
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Message 1966332 - Posted: 21 Nov 2018, 3:04:46 UTC - in response to Message 1966331.  

But they barely made any dent in the validation, deletion, purging backlog.
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Message 1966333 - Posted: 21 Nov 2018, 3:05:23 UTC - in response to Message 1966331.  

The forums are back, now to see if there's any life with the servers.

Reporting is possible, "Projects has no new tasks" is the response to work requests.


. . Same here, another 14 hour outrage ... :(

. . Machines out of work long ago ... :(

Stephen

:(
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Message 1966335 - Posted: 21 Nov 2018, 3:11:57 UTC - in response to Message 1966332.  
Last modified: 21 Nov 2018, 3:24:45 UTC

But they barely made any dent in the validation, deletion, purging backlog.

Whatever they were doing, it wasn't that particular housekeeping.

Server Status is updating again, plenty of work available, the Scheduler just isn't giving it away at the moment.
"Project has no tasks available"


Edit-
That's everything reported, now we just need some new work.

Servers must be finally coming back to life- Database master-queries-per second has peaked, and the forums & web page are now in their go slow mode.
Grant
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Message 1966385 - Posted: 21 Nov 2018, 7:04:02 UTC

New thread started here
Apr 3, 1999 - May 3, 2020
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Message boards : Number crunching : Panic Mode On (113) Server Problems?


 
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