Panic Mode On (34) Server Problems

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Profile soft^spirit
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Message 1007331 - Posted: 23 Jun 2010, 10:07:41 UTC - in response to Message 1007326.  

Message from server:Project is temporarily shut down for maintenance

When I checked at 5:30 UTC the boards were down, but part of the system was up. Now it's vice versa. And I think it was somewhat greener half an hour ago. Looks like somebody was working really late.


Isn't this just... special.
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Message 1007370 - Posted: 23 Jun 2010, 12:47:26 UTC - in response to Message 1007331.  

Isn't this just... special.


No normal :)

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Profile James Sotherden
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Message 1007416 - Posted: 23 Jun 2010, 15:24:50 UTC

This is strange, I set boinc to no new tasks. I watched my GPU crunch to 0 and low and behold another GPU task shows up and starts running. Do we have invisable cache's now? Maybe ET is beaming me work units:)
[/quote]

Old James
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Message 1007421 - Posted: 23 Jun 2010, 15:45:52 UTC
Last modified: 23 Jun 2010, 15:46:12 UTC

I hope everyone read the news on the home page today. Upload server RAID failed. So much for RAID meaning redundant.

<rant>
Maybe they should just shut this whole thing down for a month, reconfigure & replace stuff to be more reliable (probably with lower throughput), and re-launch the project in August. The whole point of science is not pace but progress. Servers crashing every 48 hours is not progress, and the whole SETI team works too hard to have their efforts set back repeatedly because of reliability issues.
</rant>

Sorry if the rant is inappropriate; I had to get that out.
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Josef W. Segur
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Message 1007424 - Posted: 23 Jun 2010, 15:53:03 UTC

Total cash donations since 1 June 2008 have been $ 217770.11 so about half that annually. It amounts to about 1/5 of a reasonable budget, so perhaps we should consider anything more than 20% uptime a testament to the skills and dedication of project staff.
                                                               Joe
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Message 1007438 - Posted: 23 Jun 2010, 16:39:39 UTC - in response to Message 1007421.  

Upload server RAID failed. So much for RAID meaning redundant.

That does not necessarily mean, that data was lost. That can be some other hardware than hard drives that failed or it can be even a software problem (IIRC they are using software RAID).
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Robert Ribbeck
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Message 1007440 - Posted: 23 Jun 2010, 16:46:30 UTC - in response to Message 1007424.  

Total cash donations since 1 June 2008 have been $ 217770.11 so about half that annually. It amounts to about 1/5 of a reasonable budget, so perhaps we should consider anything more than 20% uptime a testament to the skills and dedication of project staff.
                                                               Joe


Guess you can't count the continuing grant money they receive
or hardware donations to the contributions
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Message 1007443 - Posted: 23 Jun 2010, 16:57:59 UTC

Robert................

In case you don't know this. Josef W. Segur has been with SETI from it's inception. He has made or has been responsible for countless bug squashes and enhancements to Boinc and the science apps. He has given countless hours to the project and also from his check book. He should by all rights have the "project scientist" title but he preferes to remain on the sidelines.

Now if the project is not up to your standards I invite you to make a financial donation to the project so that perhaps the project can more closely identify with your standards.
Boinc....Boinc....Boinc....Boinc....
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Message 1007444 - Posted: 23 Jun 2010, 17:02:03 UTC - in response to Message 1007421.  

I hope everyone read the news on the home page today. Upload server RAID failed. So much for RAID meaning redundant.


Only the disks are redundant, so there's no redundancy in the controller (hardware or software). Additionally, most common RAID levels only handle a single disk failure at a time. I've seen three disks fail near simultaneously (out of a four disk array). That's always fatal. Also since recovery from a failure is an inherently intensive task, it will sometimes trigger a secondary disk failure.

Hopefully, what the SETI staff are dealing with just requires a resync. It is often possible to do a resync with the server online, but it causes a significant performance loss - which is bad news if the servers are as heavily loaded as the SETI servers are. Better to do the recovery offline then.
Stats site - http://www.teamocuk.co.uk - still alive and (just about) kicking.
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Message 1007445 - Posted: 23 Jun 2010, 17:07:31 UTC - in response to Message 1007443.  

Robert................

In case you don't know this. Josef W. Segur has been with SETI from it's inception. He has made or has been responsible for countless bug squashes and enhancements to Boinc and the science apps. He has given countless hours to the project and also from his check book. He should by all rights have the "project scientist" title but he preferes to remain on the sidelines.

Now if the project is not up to your standards I invite you to make a financial donation to the project so that perhaps the project can more closely identify with your standards.


ya ya blah blah blah
Good for him
That does not make him ALWAYS correct

In this case he made an incomplete analysis

And you took it on your self to SLAM me and infer that I HAVE some problem
for correcting him

SHAME ON YOU
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Message 1007450 - Posted: 23 Jun 2010, 17:10:56 UTC

Away guys you have already had one thread locked today dont continue on this one.
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Message 1007453 - Posted: 23 Jun 2010, 17:14:49 UTC

Is there any chance we could get our resident "forum experts" into Berkeley to donate their time and expertise for the Seti@Home cause?

There seems to be a wealth of talent producing itself. Wondering if there's someway we can tap into it, and harness this plethora of knowledge.

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Message 1007454 - Posted: 23 Jun 2010, 17:16:56 UTC

Sorry WW, saw your post after i posted the previous.

Everyone have a pleasant evening!
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Profile Allie in Vancouver
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Message 1007459 - Posted: 23 Jun 2010, 17:31:20 UTC - in response to Message 1007450.  

Away guys you have already had one thread locked today dont continue on this one.



lol

Pure mathematics is, in its way, the poetry of logical ideas.

Albert Einstein
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Message 1007460 - Posted: 23 Jun 2010, 17:33:10 UTC

Had about 2 pages of units "to do" on one machine. I was going to suspend
additional, I got a window complaining about my login was unknown on the host(?)
.. I had not clicked the button by the way.

It was a persistent error, so I rebooted. It came back and the SETI units had vanished.

Buffer has been set at 4 days, now running on 1 machine, approx 36 hours of work left.




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Josef W. Segur
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Message 1007464 - Posted: 23 Jun 2010, 17:48:21 UTC - in response to Message 1007440.  

Total cash donations since 1 June 2008 have been $ 217770.11 so about half that annually. It amounts to about 1/5 of a reasonable budget, so perhaps we should consider anything more than 20% uptime a testament to the skills and dedication of project staff.
                                                               Joe


Guess you can't count the continuing grant money they receive
or hardware donations to the contributions

That's exactly why I said "cash donations". Certainly the grant Eric managed to get after that budget changes the picture somewhat, though I don't know how much. I doubt there's any significant amount from the old Astropulse grant. The hardware donations by Overland Storage and Intel, and continuing support from Sun are certainly important too.

Will 1/10 of the 1 GBit line being run to SSL cover S@H needs? Perhaps so, the ALFA receiver sytem at Arecibo is being used less than they had hoped. But if enough had been donated to fund a S@H specific 1 GBit line being run up the hill as well as the 1GBit for the rest of the Space Sciences Lab, the capacity would be there if they can get enough funding to record more than 1/100 of the ALFA bandwidth.

If they had been able to get another staff member, would that have improved the uptime? Maybe, and maybe it would have meant more posts initiated by staff members.
                                                              Joe
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Message 1007466 - Posted: 23 Jun 2010, 17:54:12 UTC - in response to Message 1007460.  


Careful! Some here might enjoy that sort of thing! :D

Had about 2 pages of units "to do" on one machine. I was going to suspend
additional, I got a window complaining about my login was unknown on the host(?)
.. I had not clicked the button by the way.

It was a persistent error, so I rebooted. It came back and the SETI units had vanished.

Open BOINC Manager and check it says 'Connected to localhost' bottom right of the window. If it doesn't, the problem is probably local. If it does, something got hosed - possibly client_state.xml.
Stats site - http://www.teamocuk.co.uk - still alive and (just about) kicking.
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Message 1007467 - Posted: 23 Jun 2010, 17:58:24 UTC - in response to Message 1007466.  


Careful! Some here might enjoy that sort of thing! :D

Me! Me! Me! Me!


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Message 1007468 - Posted: 23 Jun 2010, 18:00:03 UTC

Forums are always down @ weekly outage.

+ think of all the server CPU-time wasted dealing with all this horrible posts...
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Message 1007470 - Posted: 23 Jun 2010, 18:00:32 UTC - in response to Message 1007464.  
Last modified: 23 Jun 2010, 18:01:04 UTC


If they had been able to get another staff member, would that have improved the uptime? Maybe, and maybe it would have meant more posts initiated by staff members.
                                                              Joe

IMO it's much more important than any bandwidth or any other hardware upgrades. It's first priority indeed...
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Message boards : Number crunching : Panic Mode On (34) Server Problems


 
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