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Jeff Cobb Project Donor
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Message 1989378 - Posted: 10 Apr 2019, 0:57:56 UTC

We had to recover the master database on oscar from a backup taken today on carolyn. Oscar is now back to being the master DB and carolyn is once again the replica DB. Things will be a bit slow as the database becomes resident in memory.
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Message 1989385 - Posted: 10 Apr 2019, 1:13:37 UTC

Thanks for all your hard work!
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Message 1989391 - Posted: 10 Apr 2019, 1:51:59 UTC - in response to Message 1989378.  

+1
A proud member of the OFA (Old Farts Association).
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Profile Keith Myers Special Project $250 donor
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Message 1989404 - Posted: 10 Apr 2019, 2:59:32 UTC

+2
Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)
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Profile Gary Charpentier Crowdfunding Project Donor*Special Project $75 donorSpecial Project $250 donor
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Message 1989417 - Posted: 10 Apr 2019, 3:53:01 UTC

Thanks very much for the message and thanks for the work.
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Grant (SSSF)
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Message 1989424 - Posted: 10 Apr 2019, 4:39:25 UTC

Thanks for the update.
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Message 1989425 - Posted: 10 Apr 2019, 4:49:49 UTC - in response to Message 1989404.  

+3
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Profile Bernie Vine
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Message 1989436 - Posted: 10 Apr 2019, 7:27:19 UTC - in response to Message 1989432.  

Thanks Jeff.

Do we know why the recovery was necessary?


I think the answer is in Eric's post here

https://setiathome.berkeley.edu/forum_thread.php?id=84096
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Richard Haselgrove Project Donor
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Message 1989437 - Posted: 10 Apr 2019, 7:29:26 UTC - in response to Message 1989432.  

Because of what Eric wrote in message 1988485
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Profile Unixchick Project Donor
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Message 1989564 - Posted: 10 Apr 2019, 23:35:11 UTC - in response to Message 1989445.  



Q4. How can we reduce the risk of it happening again?


$$$$$

sorry I couldn't help myself from giving the obvious answer. I'm sure the seti people want the same thing... keeping the seti system up as much as possible with the $ and time constraints they have.

To the seti people who always give time to get things up as soon as possible even on weekends and holidays. Thank you.
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Message 1989610 - Posted: 11 Apr 2019, 6:21:10 UTC

The present main bottle neck is storage I/O limitations, but removing those limitations with an All Flash Array would then move the bottle neck to the servers themselves (splitters, purgers, transitioner etc).
Grant
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