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Seti Computer Bug

 
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mohrorless
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PostPosted: Tue Apr 17, 2007 6:00 pm    Post subject: Seti Computer Bug Reply with quote

They had an actual bug at SETI.....
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Matt Lebofsky
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Message 547966 - Posted 17 Apr 2007 22:18:55 UTC
The BOINC web server (isaac) had its root partition fill up this morning. No big deal but the site was down for a bit as Eric cleaned that up.

During the outage we cleaned up the remaining master/replica database discrepancies and finally put sidious on UPS. Yup - it was running without a net for the past however many weeks. Well, not a direct net - we always had a replica database that was on UPS, as well as recent backup dumps. The "reorg" part took much longer than last week - perhaps due to the result/workunit tables being exercised by the new quorum settings.

While sidious was powered down I replaced the keyboard (it was using a flaky USB keyboard salvaged from a first-generation iMac) and removed the case to inspect its RAM (so we have exact specs in the event of upgrade). I popped open one of the memory banks and found that, at some point, a spider had taken up residence inside. Not really a wise choice on its part. The webs and carcass of the long deceased critter were removed before putting the memory back.

Once again, db_dump is running at the time of writing, seemingly successfully. There were some mysql configuration settings we were experimenting with last week. Though not obvious why, one of these may have been forcing the long db_dump queries to time out. Anyway, we shall see... it just wrapped up the user table sans hitch.

- Matt

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



http://setiathome.berkeley.edu/forum_thread.php?id=38874
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JerWA
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PostPosted: Wed Apr 18, 2007 5:21 am    Post subject: Reply with quote

Yeah, figurative and literal. Haven't been able to upload a SETI result all day and both rigs are within 5 hours of being out of work for the project. And before you say it, it's not Tuesday any more, so the stupid maint thing should be done already.

Guess I should bump SETI up to a 2 day work queue.
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mohrorless
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PostPosted: Wed Apr 18, 2007 5:26 am    Post subject: Reply with quote

JerWA wrote:
Yeah, figurative and literal. Haven't been able to upload a SETI result all day and both rigs are within 5 hours of being out of work for the project. And before you say it, it's not Tuesday any more, so the stupid maint thing should be done already.

Guess I should bump SETI up to a 2 day work queue.


I'm having trouble too. I have WUs on all 3 PCs waiting to go. At first I chaulked it up to the Tuesday main, but then Seti seemed to come back up and I saw a connection get made, then everything stopped working. **sigh**.

I guess their servers aren't happy today.
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JerWA
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PostPosted: Wed Apr 18, 2007 5:36 am    Post subject: Reply with quote

My poor BOINC Manager is freaking out. SETI servers are down, so it's got tons of queued uploads, and NHAH is out of work (the project, not me yet) so it's begging their servers for more work every time the back-off timer runs out hehe.

On an unrelated topic, should I pick up Proteins @ Home (not running on any rigs right now) or Malaria Control (running very part time on one machine) when I run out of NHAH work?
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