Trial of Error (Feb 28 2012)

Message boards : Technical News : Trial of Error (Feb 28 2012)

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Profile Matt Lebofsky
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Message 1200735 - Posted: 28 Feb 2012, 23:36:32 UTC

Over the past few days (starting around Friday) we had continuing fallout with the science database repairs made over the previous weeks. Nothing we couldn't diagnose quickly or handle, but there were patches of low workunit availability. Long story short, after rebuilding our workunit table we hit some index corruption issues that didn't rear their head until we suddenly stumbled upon them.

Today we dropped all the indexes and rebuilt them from scratch during the usual weekly outage. So far so good. I also used the outage this week to upgrade the OS on the scheduling server (which was fairly out of date).

We also brought in some freshly compiled splitters which contain new database plumbing - a step toward us having the splitters themselves being more sensitive to telescope status when the data were recorded. This code is currently dormant but after some testing and calibration will ultimately keep us from creating and sending out large numbers of "noisy" workunits.

This plumbing however hasn't been compiled yet into the Astropulse splitters, which is why they shall remain off for now.

- Matt


-- BOINC/SETI@home network/web/science/development person
-- "Any idiot can have a good idea. What is hard is to do it." - Jeanne-Claude

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Message 1200746 - Posted: 28 Feb 2012, 23:52:12 UTC

Thank you for the update Matt. I can hardly wait for the new servers to arrive, and be of some help. I remember well the anticipation of when oscar and carolyn arrived.

Steve


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Message 1200748 - Posted: 28 Feb 2012, 23:53:37 UTC

Thanks for the Update Matt...Hopefully things will improve for you guys soon (with some new toys).



I Desire Peace and Justice, Jim Scott (Mod-Ret.)

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Message 1200771 - Posted: 29 Feb 2012, 0:43:22 UTC - in response to Message 1200735.

Thanks for the update Matt,

Claggy

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Message 1200817 - Posted: 29 Feb 2012, 3:29:43 UTC

As always, we appreciate your updates.

Any chance of getting our result web pages turned back on, P l e a s e ? ? ?

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Message 1200828 - Posted: 29 Feb 2012, 4:23:18 UTC - in response to Message 1200735.

Matt, thanks for the update!


- Best regards! - Sutaru Tsureku, team seti.international founder. - Optimize your PC for higher RAC. - SETI@home needs your help. -


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Message 1200829 - Posted: 29 Feb 2012, 4:24:43 UTC

Thanks you Matt for the update :)


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Message 1200843 - Posted: 29 Feb 2012, 5:47:35 UTC - in response to Message 1200829.

thaks

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Message 1200883 - Posted: 29 Feb 2012, 7:21:20 UTC - in response to Message 1200746.

Thank you for the update Matt. I can hardly wait for the new servers to arrive, and be of some help. I remember well the anticipation of when oscar and carolyn arrived.

Steve

Yes, thank you Matt so much for the info once again, it is always of much interest to us what goes on each week. Helps some with a little less patience understand the things you have to deal with just to keep the project running.

And the kitties are rather excited about the pending arrival of the new servers as well!!!
Kitties make wonderful traveling companions on your journey through life.

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Message 1200899 - Posted: 29 Feb 2012, 8:41:35 UTC

THNX for the update! :)

Keep up the good work! ^.^


I do what I can and I can what I do! :P

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Message 1200959 - Posted: 29 Feb 2012, 14:37:08 UTC

thank you for the update, now to see if the dogs can catch the kitties RAC.


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Message 1200960 - Posted: 29 Feb 2012, 14:38:32 UTC - in response to Message 1200735.

We also brought in some freshly compiled splitters which contain new database plumbing - a step toward us having the splitters themselves being more sensitive to telescope status when the data were recorded. This code is currently dormant but after some testing and calibration will ultimately keep us from creating and sending out large numbers of "noisy" workunits.

This plumbing however hasn't been compiled yet into the Astropulse splitters, which is why they shall remain off for now.

Steady, Sten-Arne. AP will be back eventually, and it will be better than ever. You WILL survive. Just go ahead and allow MB now and it will stretch out your APs a bit. It's not the end of the world...

Thanks for the update, Matt.

David
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Message 1200984 - Posted: 29 Feb 2012, 16:13:30 UTC - in response to Message 1200960.


Steady, Sten-Arne. AP will be back eventually, and it will be better than ever. You WILL survive. Just go ahead and allow MB now and it will stretch out your APs a bit. It's not the end of the world...

Thanks for the update, Matt.


No problems whatsoever. I managed during the days when AP's where easy to get, to accumulate so many AP's, that I can stand an AP drought lasting for 2 weeks or more. I do not need to allow any MB's into my AP only machine, and I do not need to run any MB's on the CPU's of my Nvidia computers either.

I will just relax, and wait patiently for whenever they turn on the AP splitters again.

Burp.....:-)




This is a test of the Emergency Moron System. Had there been a real moron in the room, there would've been a small mushroom cloud in the place where the idiot had been standing.

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Message 1200987 - Posted: 29 Feb 2012, 16:27:31 UTC

I am not Speedy Gonzales but I am running an Astropulse unit on my Solaris Virtual Machine. The BOINC client and the application are by Dotsch.
Tullio


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Message 1201007 - Posted: 29 Feb 2012, 16:57:13 UTC - in response to Message 1200984.


Steady, Sten-Arne. AP will be back eventually, and it will be better than ever. You WILL survive. Just go ahead and allow MB now and it will stretch out your APs a bit. It's not the end of the world...

Thanks for the update, Matt.


No problems whatsoever. I managed during the days when AP's where easy to get, to accumulate so many AP's, that I can stand an AP drought lasting for 2 weeks or more. I do not need to allow any MB's into my AP only machine, and I do not need to run any MB's on the CPU's of my Nvidia computers either.

I will just relax, and wait patiently for whenever they turn on the AP splitters again.

Something is strange here...

Burp.....:-)

Ah hah! Just as I thought. You're drunk.

David
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Waiting for a message from a small furry creature from Alpha Centauri.


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Profile Matt Lebofsky
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Message 1201031 - Posted: 29 Feb 2012, 18:12:57 UTC

Ah yes - I just set the "show_results" flag back to 1.

And just talked to the GPU gang - servers are done being assembled and shall ship later today or tomorrow.

- Matt


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Message 1201034 - Posted: 29 Feb 2012, 18:17:07 UTC - in response to Message 1201031.

Ah yes - I just set the "show_results" flag back to 1.

And just talked to the GPU gang - servers are done being assembled and shall ship later today or tomorrow.

- Matt

Thank you very much, Matt!!! For both the return of the tasks page, and the great news regarding the new servers!!

Meow!
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Message 1201045 - Posted: 29 Feb 2012, 18:45:59 UTC - in response to Message 1201034.
Last modified: 29 Feb 2012, 18:46:57 UTC

it really is amazing to know how much you use a feature and take it for granted, when it's down all of a sudden, thank god to have the tasks pages back i missed them.

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Message 1201066 - Posted: 29 Feb 2012, 19:22:41 UTC - in response to Message 1201031.

Ah yes - I just set the "show_results" flag back to 1.

Thanks for that. It helped me to abort this unnecessary AP WU, which was already validated. Makes 26-28 hours of CPU time, which can now be used for something more useful.
.

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Message 1201078 - Posted: 29 Feb 2012, 20:02:18 UTC - in response to Message 1201031.

Hi Matt,
Great news, I hope however this doesnt mean you have to work 24/7 to get them in and working..

Seems to me you've been pretty busy as it is. Dont want you going down with exhaustion.. The resultant outage would probably take ages to sort out.

Regards,


Cliff,
Been there, Done that, Still no damm T shirt!

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Message boards : Technical News : Trial of Error (Feb 28 2012)


 
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