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SETI@Home latest news, and daily stats for 29.-30.03.2006.

Rattledagger

Elite Member
#_______total________today________RAC_____Overtake_____Team name
01___102.583.432____291.246____406.678____impossible____SETI.Germany
02____47.477.215____377.231____402.604____impossible____BroadbandReports.com Team Starfire
10____18.059.203____333.088____442.175____impossible____SETI.USA
17_____2.800.743_____-3.157____-12.386______226 days____Phoenix Rising
18_____2.747.025_____27.578_____25.204____impossible____Planet 3DNow!
19____22.017.191_____43.855_____70.073____notanoption___TeAm AnandTech
20______-663.763_____12.385_______-969____impossible____PC Perspective Killer Frogs
21____-2.115.096_____19.199_____18.698______113 days____2CPU.com
27____-6.958.632_____30.276_____45.639______152 days____Picard
29____-7.565.872_____16.595_____19.583______386 days____Team MacNN
34____-9.978.382______2.642________375____26609 days____SETI@China
51___-13.856.728_____32.545_____16.212______855 days____SETI@Taiwan


Appart for Anandtech's stats, it shows how much more/less than Anandtech.
Also shows based on RAC how many days for Anandtech to overtake the team, or be overtaken by a team behind...


Picard up 1 spot to, #27.
SETI@Taiwan up 1 spot, to #51.


There stats is for the last 2 days, and is low all-around due to the latest server-problems.

Latest News:
March 30, 2006
We're now over $175,000 so far during our first annual fundraising drive. Thank you for your help so far! Please help us reach our goal by contributing today.
Latest Technical News:
March 27, 2006 - 23:30 UTC
We're in the middle of another pathological situation where the result/workunit queues have gotten too big over time and we need to quiet our systems to let them drain a bit. We've run out of disk space for the workunit storage while the database is unable to handle the extra load caused by keeping so many result records around. So we won't be sending out any new work until we have the resources to do so.
March 30, 2006 - 00:30 UTC
Today we had an outage to finally move some of the newer (and very noisy) hardware into the server closet. Namely, the Sun v40z which has been the main BOINC database for the past year or so and the Dell linux server which is the boinc.berkeley.edu webserver and alpha project, among other things. Moving out of the closet was cyclops, a Sun 450 which held the Classic "non-master" science database. Soon we will backing up that old data and dropping it.
March 30, 2006 - 22:30 UTC
Okay. We seem to be out of the woods for now. We vastly reduced the size of the result table in the BOINC database. How? By clearing out the results-to-delete queue, and by cranking up db_purge so that it removes all results from the database as soon as they are deleted from disk. Under normal circumstances we keep at least a days' worth of old result rows around so participants can see those recently finished in their personal lists. Over the weekend we'll keep this clamped down for observational and catch-up purposes. Next week we might relax the db_purge parameters to allow completed result rows to linger like before.

Anyway.. having a shrunken database has enabled most of it to fit in RAM, which has vastly improved performance for now. This will change quickly, of course, as we continue to grow (and tables get fragmented on disk), but we are hoping to obtain more memory (4x2GB Dimms for a Sun v40z) very soon.

As a side note, it should be mentioned that the old SETI@home classic data server (a big ol' Sun E450) has proven itself still quite useful during yesterday's server closet reconfiguration outage. Since it is fairly large and on sturdy wheels, it made a perfectly good cart for transporting heavy rack hardware from the lab into the closet.

 
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