Slowly Approaching... (May 08 2007)

Message boards : Technical News : Slowly Approaching... (May 08 2007)
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Profile Matt Lebofsky
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Message 563137 - Posted: 8 May 2007, 21:55:42 UTC

Thanks for the continuing patience and encouraging sentiments since the science database server crashed over a week ago. Still waiting on the server replacement. I think we're all anxious for it to arrive already, but we originally expected it no earlier than late-in-the-day today.

We had the usual database backup outage, in case anybody noticed. Outside of the usual backup/compression of the BOINC database, I fixed the replica server, so that's back up and running again. I also rebooted our Network Appliance which has been complaining about "misconfigurations" as of late, but that didn't seem to help or hurt. We think a bad drive in the system is causing these errors. I then replaced a bad drive in the Snap Appliance so that's back to having two working hot spares (phew). Jeff, Eric, and I also cleaned up the lab. Entropy reigns supreme around here. The table which we sit around and eat lunch was full of miscellaneous screws, heat sinks, empty drive trays, shredded bubble wrap, etc. but not anymore.

- 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 563146 - Posted: 8 May 2007, 22:00:23 UTC
Last modified: 8 May 2007, 22:01:46 UTC

No problemo.

It will be ready when it's ready! ;-)

Besides with the trouble they're having getting their new app rolled out at EAH, the extra time mine are spending working for them is far from wasted. :-)

<edit> BTW, would this count as an 'It's in the mail' incident? :-D

Alinator
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Conrad Human
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Message 563152 - Posted: 8 May 2007, 22:04:37 UTC
Last modified: 8 May 2007, 22:05:32 UTC

Mat sorry to bother

I know u wil re-use the drives in "Old Thumper"
But what else must u take to get "thumper II" up
im asking coz i am thinking that old thumper wil make a mean slitter (if u can get a Hard drive in it)


Thanks Conrad



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Message 563155 - Posted: 8 May 2007, 22:06:45 UTC

No problem here either and thanks for the update! I'll wait as long as it takes.
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Message 563158 - Posted: 8 May 2007, 22:07:52 UTC - in response to Message 563137.  

Entropy reigns supreme around here.


That's cool... ;-)
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Message 563160 - Posted: 8 May 2007, 22:10:44 UTC

Is it reasonable to consider an additional BOINC service that holds the database of files to be checked out and in? That way a single server crash would be of little or no consequence.
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Message 563162 - Posted: 8 May 2007, 22:11:54 UTC - in response to Message 563137.  

In my best Yoda voice:

"Much patience must you have young Jedi. Seek the calm within you must. Care not for the physical; instead seek the day we are re-IPL'ed and are one with the Force!"
<grin>

It may seem that the waiting is the toughest part of the job ... the real challenge will really be to avoid the "adoring crowds" after you get everything back up! Get some rest while you can.
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Message 563167 - Posted: 8 May 2007, 22:15:55 UTC - in response to Message 563160.  
Last modified: 8 May 2007, 22:16:37 UTC

Is it reasonable to consider an additional BOINC service that holds the database of files to be checked out and in? That way a single server crash would be of little or no consequence.


That's what Jocelyn, Sidious, and the other BOINC system servers do. Thumper is the Master Science Database and is really only needed when work is generated from our POV, and of course assimilate the canonical results into. IIRC, they're now considering what they can do to build up a backup for him and how that fits into the budget.

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Profile Paul Hulme
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Message 563168 - Posted: 8 May 2007, 22:17:35 UTC - in response to Message 563137.  

Thanks for the continuing patience and encouraging sentiments since the science database server crashed over a week ago. Still waiting on the server replacement. I think we're all anxious for it to arrive already, but we originally expected it no earlier than late-in-the-day today.

We had the usual database backup outage, in case anybody noticed. Outside of the usual backup/compression of the BOINC database, I fixed the replica server, so that's back up and running again. I also rebooted our Network Appliance which has been complaining about "misconfigurations" as of late, but that didn't seem to help or hurt. We think a bad drive in the system is causing these errors. I then replaced a bad drive in the Snap Appliance so that's back to having two working hot spares (phew). Jeff, Eric, and I also cleaned up the lab. Entropy reigns supreme around here. The table which we sit around and eat lunch was full of miscellaneous screws, heat sinks, empty drive trays, shredded bubble wrap, etc. but not anymore.

- Matt

Now.....where is that all important screw I left on the table last night and the heatsink that requires re-installing?? OK, who's tidied up?
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Message 563172 - Posted: 8 May 2007, 22:19:38 UTC - in response to Message 563137.  

Thanks for the continuing patience and encouraging sentiments since the science database server crashed over a week ago. Still waiting on the server replacement. I think we're all anxious for it to arrive already, but we originally expected it no earlier than late-in-the-day today.

We had the usual database backup outage, in case anybody noticed. Outside of the usual backup/compression of the BOINC database, I fixed the replica server, so that's back up and running again. I also rebooted our Network Appliance which has been complaining about "misconfigurations" as of late, but that didn't seem to help or hurt. We think a bad drive in the system is causing these errors. I then replaced a bad drive in the Snap Appliance so that's back to having two working hot spares (phew). Jeff, Eric, and I also cleaned up the lab. Entropy reigns supreme around here. The table which we sit around and eat lunch was full of miscellaneous screws, heat sinks, empty drive trays, shredded bubble wrap, etc. but not anymore.

- Matt
no problem started getting scared but after reading this i understand i'm ready when your ready
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Message 563179 - Posted: 8 May 2007, 22:34:30 UTC

Is it ready yet?

..
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Message 563180 - Posted: 8 May 2007, 22:35:16 UTC - in response to Message 563160.  

Is it reasonable to consider an additional BOINC service that holds the database of files to be checked out and in? That way a single server crash would be of little or no consequence.

This facility is effectively part of the BOINC client. BOINC should run through most outages without issue.

... especially if you crunch more than one project. This effectively spreads the cost of servers and other redundant hardware across all of the projects.
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Message 563182 - Posted: 8 May 2007, 22:35:39 UTC

Is it ready yet? ;) (j/k...I'll stop here)

..
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Message 563186 - Posted: 8 May 2007, 22:40:21 UTC

Hapily crunching many projects while waiting for SETI to resume!


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Message 563188 - Posted: 8 May 2007, 22:46:04 UTC

You (Matt) and the rest of the team are doing a fantastic job and hats off to you! When the SUN server arrives, GREAT, but the things you and the team have done in the last few years far outweighs this minor hiccup! KEEP UP THE GOOD WORK!

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Message 563190 - Posted: 8 May 2007, 22:47:15 UTC

If memory serves, thumper was donated by Sun and it was early in the E4500 development. Maybe it was an engineering sample??? If so, perhaps Sun would be happy to get the old one back so it can do a post mortem on it, and improve future versions??? Perhaps that's why they provided a replacement??? This is all speculation that is worth about as much as the quality of my kids cleaning efforts. LOL
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Message 563213 - Posted: 8 May 2007, 23:15:09 UTC - in response to Message 563190.  

If memory serves, thumper was donated by Sun and it was early in the E4500 development. Maybe it was an engineering sample??? If so, perhaps Sun would be happy to get the old one back so it can do a post mortem on it, and improve future versions??? Perhaps that's why they provided a replacement??? This is all speculation that is worth about as much as the quality of my kids cleaning efforts. LOL


x4500.

http://www.sun.com/servers/x64/x4500/

E4500 is an ooooooold product. Released 1998.

http://sunsolve.sun.com/handbook_pub/Systems/E4500/E4500.html

My guess is that Sun will only replace what they must to get it functioning, and take back any extra and/or failed components.
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Message 563216 - Posted: 8 May 2007, 23:18:42 UTC - in response to Message 563190.  
Last modified: 8 May 2007, 23:19:19 UTC

If memory serves, thumper was donated by Sun and it was early in the E4500 development. Maybe it was an engineering sample??? If so, perhaps Sun would be happy to get the old one back so it can do a post mortem on it, and improve future versions??? Perhaps that's why they provided a replacement??? This is all speculation that is worth about as much as the quality of my kids cleaning efforts. LOL

See the previous post. :D
The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's
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Message 563223 - Posted: 8 May 2007, 23:33:52 UTC

WOW, this is fantastic..
I really got a seti@home WU. For about 45 minutes ago :-
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Message 563226 - Posted: 8 May 2007, 23:44:19 UTC - in response to Message 563137.  

The table which we sit around and eat lunch was full of miscellaneous screws, heat sinks, empty drive trays, shredded bubble wrap, etc. but not anymore.

- Matt


Did it taste like chicken?
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Message boards : Technical News : Slowly Approaching... (May 08 2007)


 
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