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Technical News :
Cinco de Mayo (May 05 2009)
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Author | Message |
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Matt Lebofsky Send message Joined: 1 Mar 99 Posts: 1444 Credit: 957,058 RAC: 0 |
There were indeed some weird lingering problems with the mysql database from this weekend. Some tables had bungled indexes. We think we cleaned that up during the usual weekly maintenance outage today. We also needed to regenerate the replica mysql database from scratch, so that'll be behind until later this evening (or tomorrow). The result pages may be out of whack until then. In fact, I just turned them off for now as they were eating too many resources. By the way, we're still unable to collect data at Arecibo due to problems with the data recorder being unable to see the drives. Turns out the card we bought, which was an exact replacement of the previous card, is having driver issues. Why? Well, unbeknownst to us we weren't actually using the previous card - we were using a totally different card (i.e. one we didn't buy) this whole time. It's a mystery why the original card was swapped out and replaced with this third one, but we're kinda back at square one again. Sigh. Due to time zone/scheduling conflicts each iteration on this front takes about 24 hours (the staff at Arecibo is providing support for free, after all). - 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 |
Dirk Sadowski Send message Joined: 6 Apr 07 Posts: 7105 Credit: 147,663,825 RAC: 5 |
Just curious.. The pending credit URL is no longer available in my profile. This will recover [come back] automatically? BTW. Thanks for the daily update here. :-) |
Zydor Send message Joined: 4 Oct 03 Posts: 172 Credit: 491,111 RAC: 0 |
Chin up Matt - a lesser Team would have run gibbering by now after the last week of issues you and the Team have had to face - lots of people out there who well appreciate the efforts you all go to in keeping the show on the road, and the problems in doing so. Keep Smiling :) Regards Zy |
Aurora Borealis Send message Joined: 14 Jan 01 Posts: 3075 Credit: 5,631,463 RAC: 0 |
That points to the replica database which is temporarily offline. |
JohnDK Send message Joined: 28 May 00 Posts: 1222 Credit: 451,243,443 RAC: 1,127 |
06/05/2009 00:00:06 SETI@home Message from server: (Project has no jobs available) Did someone forget flipping a switch after the maintenance? |
Dr. C.E.T.I. Send message Joined: 29 Feb 00 Posts: 16019 Credit: 794,685 RAC: 0 |
. . . Thanks for the Updates Matt > Happy Cinco de Mayo to Each of You @ Berkeley and to the Participants as well . . . BOINC Wiki . . . Science Status Page . . . |
John G Send message Joined: 29 Dec 01 Posts: 68 Credit: 10,932,850 RAC: 0 |
Matt Thanks for the update You are right no pending in boinc what so ever right now ---- but heck ----- i still crunch away !!!! Cannot wait until the live feed for your 10th aniversary Take Care |
Speedy Send message Joined: 26 Jun 04 Posts: 1643 Credit: 12,921,799 RAC: 89 |
Thanks for the update Matt. I'm pleased that you now know what the trouble is with the data recorder & to hear that Arecibo staff are providing free support. Matt is there a chance we could run out of work due to the recorder been out of action? Everything looks to be normal data going in at 95.31mb & out at 11.95mb It amazes that that bits coming in are over 3 times as fast as the bits going out, I would have thought it would be the other way around. |
Dena Wiltsie Send message Joined: 19 Apr 01 Posts: 1628 Credit: 24,230,968 RAC: 26 |
It is. It depends on your point of view and the trace is taking place from the other side. |
Speedy Send message Joined: 26 Jun 04 Posts: 1643 Credit: 12,921,799 RAC: 89 |
I look at it like this. Bits in are the units being returned (the part using the most bandwidth) & bits out being the new work going to be crunched (the part that uses the least amount of bandwidth) Is this the way it works? I see data in is almost maxed out as a result I have 3 results waiting to upload, make the 2 waiting to upload one just got through. Things will return to normal as soon as the demand has eased from the weekly outage. |
arkayn Send message Joined: 14 May 99 Posts: 4438 Credit: 55,006,323 RAC: 0 |
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Speedy Send message Joined: 26 Jun 04 Posts: 1643 Credit: 12,921,799 RAC: 89 |
Actually the Bits in is what is coming out to us, Bits out is what we are uploading. That's right, my way of thinking is it should be around the other way. Maybe it's just the way I think or do others agree with me? For those who are interested the replica database is running about 7 hours behind the master database. |
1mp0£173 Send message Joined: 3 Apr 99 Posts: 8423 Credit: 356,897 RAC: 0 |
Actually the Bits in is what is coming out to us, Bits out is what we are uploading. "In" and "Out" are relative to the router interface being graphed, which may not exactly "point" the direction you expect. |
Speedy Send message Joined: 26 Jun 04 Posts: 1643 Credit: 12,921,799 RAC: 89 |
Thank you Ned. I was unaware that the graph was related to the router, the way it has been labeled makes total scene. All work waiting to be uploaded has got through. |
1mp0£173 Send message Joined: 3 Apr 99 Posts: 8423 Credit: 356,897 RAC: 0 |
I'm pretty sure the router we're looking at belongs to Communications and Network Services (i.e. Campus) and not SETI. It's whatever makes the network operators happy, and we just happen to be peeking at their tools. |
Gary Charpentier Send message Joined: 25 Dec 00 Posts: 31012 Credit: 53,134,872 RAC: 32 |
Actually the Bits in is what is coming out to us, Bits out is what we are uploading. IIRC there are actually links to look at the router from either the campus side or the internet side. And in either bits or packets. |
1mp0£173 Send message Joined: 3 Apr 99 Posts: 8423 Credit: 356,897 RAC: 0 |
Whenever I'm thinking about this kind of stuff (including routing) I picture myself sitting inside the router (or host) and peeking out through the ethernet jack. With that point of view, lots of things get much simpler. |
OzzFan Send message Joined: 9 Apr 02 Posts: 15691 Credit: 84,761,841 RAC: 28 |
OK, but how do you imagine yourself so small that you actually fit? And what does the inside of a router look like? I think it has lots of gnomes working at tiny consoles routing all of our IP datagrams manually as each gnome shuffles about from port to port. Am I close? |
1mp0£173 Send message Joined: 3 Apr 99 Posts: 8423 Credit: 356,897 RAC: 0 |
Well, to start with, it's really dark inside, unless someone takes the cover off. |
Fred W Send message Joined: 13 Jun 99 Posts: 2524 Credit: 11,954,210 RAC: 0 |
"You are in a maze of passages; all look the same. (N/S/E/W)?" F. |
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