Panic Mode On (77) Server Problems?

A good place to rummage is the Arecibo Observatory Telescope Schedule.

Well, we're back up after the weekly outage, but the Scheduler appears to be struggling already.
Most requests result in "Couldn't connect to server" messages & the uploads are pretty hit or miss at the moment as well.
Maybe Bruno & Synergy have got more than they can handle?
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Grant
Darwin NT.

Inbound network traffic is already dropping off, yet i'm having problems uploading work.
Whatever the upload issue has been after the last few outages, it appears to be back again.
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Grant
Darwin NT.

Inbound network traffic is already dropping off, yet i'm having problems uploading work.
Whatever the upload issue has been after the last few outages, it appears to be back again.

10/2/2012 5:29:03 PM | | Internet access OK - project servers may be temporarily down.
10/2/2012 5:29:33 PM | SETI@home | Temporarily failed upload of 26jl12ae.19088.3748.3.10.101_0_0: transient HTTP error
10/2/2012 5:29:33 PM | SETI@home | Backing off 2 min 47 sec on upload of 26jl12ae.19088.3748.3.10.101_0_0
10/2/2012 5:29:35 PM | | Project communication failed: attempting access to reference site
10/2/2012 5:29:36 PM | | Internet access OK - project servers may be temporarily down.
10/2/2012 5:29:36 PM | SETI@home | Computation for task 25jl12ab.23974.4975.7.10.239_0 finished
10/2/2012 5:29:38 PM | SETI@home | Started upload of 25jl12ab.23974.4975.7.10.239_0_0
10/2/2012 5:30:07 PM | SETI@home | Temporarily failed upload of 25jl12ab.23974.4975.7.10.239_0_0: transient HTTP error
10/2/2012 5:30:07 PM | SETI@home | Backing off 3 min 11 sec on upload of 25jl12ab.23974.4975.7.10.239_0_0
10/2/2012 5:30:11 PM | | Project communication failed: attempting access to reference site
10/2/2012 5:30:12 PM | | Internet access OK - project servers may be temporarily down.

nothing has changed here .. 0 work for cpu and 0 work for gpu on
machine xxxx033 :(
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Yes, things havn't come back right for the last 3 outages now so it seems that something is being overlooked somewhere.

What is the explanation behind a "shorties storm" ? They don't seem to originate from the same tapes? Yet almost anything being sent out are VHAR units. Is this a server problem? I'm curious to read some info on this ;) Works flows slowly at best right now, better than nothing at all of course.

Kind regards.

In simple terms: SETI gets its data for free, by taking its own copy of the data being recorded during the course of astronmonical observations at the Arecibo radio telescope.

Different groups of radio astronomers are allocated observing time on the telescope, according to an observatory schedule which can be searched online if you're really interested. Each separate group of observers has control of the telescope during their assigned time slot, and control its movement and observing patterns.

Some astronomers are interested in long, steady, deep-space observations of, near enough, point sources. The focal point of the telescope remains steady in relation to the sky - the recordings have a low 'angle range' between the beginning and end of the 109 seconds we study in each workunit. Those sessions create the 'VLAR' tasks when we get to crunch the recordings.

Other observing teams are more interested in fast surveys of large parts of the sky. They use the observatory's radio antenna in what is known as a 'basketweave' mode, with the telescope nodding from side to side while the earth turns under the sky. That leads to the high angle range tasks - we know them as 'shorties', because it's not worth doing such intense analysis when potential signal sources remain in the field of view for such a short time.

And in between, there are observations - or even recordings taken during telescope maintenance - where the antenna is not being actively steered at all, but simply receiving whatever happens to be coming from the sky patch directly overhead as the earth turns. That gives us the normal, mid-AR tasks which form our staple diet.

I have just had a record of WU's being processed on my computer, 6 out of 8 slots were processing. Unfortunately, it only lasted about 1 1/2 minute and I am now back to 0 of 8.

I think the uploading / reporting and general slowness is related to the AP Splitters running and that this or their WU's somehow causes the project to take a major dive.

I have not had WU's for my main computer for many days and now I have received a few tasks but I cannot report them or my status to ask for more work.

I hope something gets discovered soon, and I hope that the staff are aware of the problems we are having with communication to the SETI project as a whole.

Arvid
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Arvid Almstrom

Things are certainly borked upload wise- prior to the outage & since whatever was done on Sunday there had been a steady tream of work being returned- 100,000 results per hour.
Apart from a very brief burst it has dropped down to 54,000/hr & is still declining. Not because there isn't work to be returned, but becasue it can't be returned.


And on those very rare occasions where i can ask for work, the usual response from the Scheduler at the moment is to not give any, or just timeout.


EDIT- with caches continuing to shrink, if the upload backlog ever fully clears, the Scheduler is going to be hammered even more than it is now. And it's not coping now.
And this is happening even with new AP work disabled & no work available to go out. When AP starts up again it's going to be even worse.
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Grant
Darwin NT.

Sounds like we're in for one heck of a ride. Shorties galore over here, but uploads and downloads are hit an miss still.
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I have just had a record of WU's being processed on my computer, 6 out of 8 slots were processing. Unfortunately, it only lasted about 1 1/2 minute and I am now back to 0 of 8.

I think the uploading / reporting and general slowness is related to the AP Splitters running and that this or their WU's somehow causes the project to take a major dive.

I have not had WU's for my main computer for many days and now I have received a few tasks but I cannot report them or my status to ask for more work.

I hope something gets discovered soon, and I hope that the staff are aware of the problems we are having with communication to the SETI project as a whole.

Arvid

Once again, i'm processing work faster than it can be uploaded. Even with never ending clicks on the re-try button.
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Grant
Darwin NT.

Once again, i'm processing work faster than it can be uploaded. Even with never ending clicks on the re-try button.

well,
There is a hundred megabits of bandwidth going somewhere doing something,
One thing i do know about it is it aint comeing here an doing anything.
Looks like Einstein will be heating the house tonight :¬)

If you werent english i would ask you to translate.......to english

Things are certainly borked upload wise- prior to the outage & since whatever was done on Sunday there had been a steady tream of work being returned- 100,000 results per hour.
Apart from a very brief burst it has dropped down to 54,000/hr & is still declining.

Intrestingly Matt has posted in the Technical News thread http://setiathome.berkeley.edu/forum_thread.php?id=69594 and seems to be totally unaware that there have been any problems at all!!

In fact quite the reverse!!