Trial of Error (Feb 28 2012)


log in

Advanced search

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

1 · 2 · Next
Author Message
Profile Matt Lebofsky
Volunteer moderator
Project administrator
Project developer
Project scientist
Avatar
Send message
Joined: 1 Mar 99
Posts: 1391
Credit: 74,079
RAC: 10
United States
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 I also used the outage this week to upgrade the OS on the scheduling server (which was fairly out of date).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

Profile SciManStevProject donor
Volunteer tester
Avatar
Send message
Joined: 20 Jun 99
Posts: 4908
Credit: 84,406,100
RAC: 30,307
United States
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
____________
Warning, addicted to SETI crunching!
Crunching as a member of GPU Users Group.
GPUUG Website

Profile Jim_SProject donor
Avatar
Send message
Joined: 23 Feb 00
Posts: 4534
Credit: 19,244,548
RAC: 10,152
United States
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.)

ClaggyProject donor
Volunteer tester
Send message
Joined: 5 Jul 99
Posts: 4248
Credit: 34,977,904
RAC: 21,656
United Kingdom
Message 1200771 - Posted: 29 Feb 2012, 0:43:22 UTC - in response to Message 1200735.

Thanks for the update Matt,

Claggy

Swibby Bear
Send message
Joined: 1 Aug 01
Posts: 236
Credit: 7,276,504
RAC: 1
United States
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 ? ? ?

Profile [seti.international] Dirk Sadowski
Volunteer tester
Avatar
Send message
Joined: 6 Apr 07
Posts: 7124
Credit: 61,630,018
RAC: 15,767
Germany
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. -
____________
BR

SETI@home Needs your Help ... $10 & U get a Star!

Team seti.international

Das Deutsche Cafe. The German Cafe.

Profile Michel448a
Volunteer tester
Avatar
Send message
Joined: 27 Oct 00
Posts: 1201
Credit: 2,891,635
RAC: 0
Canada
Message 1200829 - Posted: 29 Feb 2012, 4:24:43 UTC

Thanks you Matt for the update :)
____________

Profile taker
Send message
Joined: 25 May 08
Posts: 2
Credit: 179,712
RAC: 0
United States
Message 1200843 - Posted: 29 Feb 2012, 5:47:35 UTC - in response to Message 1200829.

thaks

Profile S@NL - Vipertje - D. van Es
Avatar
Send message
Joined: 19 Oct 02
Posts: 38
Credit: 24,953,059
RAC: 10,062
Netherlands
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

Profile RottenMutt
Avatar
Send message
Joined: 15 Mar 01
Posts: 999
Credit: 209,478,074
RAC: 59,710
United States
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.
____________

N9JFE David SProject donor
Volunteer tester
Avatar
Send message
Joined: 4 Oct 99
Posts: 12658
Credit: 15,016,563
RAC: 9,670
United States
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
Sitting on my butt while others boldly go,
Waiting for a message from a small furry creature from Alpha Centauri.


Sten-Arne
Volunteer tester
Send message
Joined: 1 Nov 08
Posts: 3769
Credit: 21,496,116
RAC: 15,520
Sweden
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.....:-)




____________

Profile tullioProject donor
Send message
Joined: 9 Apr 04
Posts: 3871
Credit: 396,553
RAC: 190
Italy
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
____________

N9JFE David SProject donor
Volunteer tester
Avatar
Send message
Joined: 4 Oct 99
Posts: 12658
Credit: 15,016,563
RAC: 9,670
United States
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
Sitting on my butt while others boldly go,
Waiting for a message from a small furry creature from Alpha Centauri.


Profile Matt Lebofsky
Volunteer moderator
Project administrator
Project developer
Project scientist
Avatar
Send message
Joined: 1 Mar 99
Posts: 1391
Credit: 74,079
RAC: 10
United States
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
____________
-- BOINC/SETI@home network/web/science/development person
-- "Any idiot can have a good idea. What is hard is to do it." - Jeanne-Claude

Profile taker
Send message
Joined: 25 May 08
Posts: 2
Credit: 179,712
RAC: 0
United States
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.

Profile Link
Avatar
Send message
Joined: 18 Sep 03
Posts: 840
Credit: 1,578,126
RAC: 37
Germany
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.
____________
.

Profile cliff
Avatar
Send message
Joined: 16 Dec 07
Posts: 475
Credit: 2,805,957
RAC: 2,907
United Kingdom
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!

1 · 2 · Next

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

Copyright © 2014 University of California