[SETI@Home] hitparade van 29 juli

[APClll]

LET OP: Alweer statsloze stats

Helaas, de stats zijn nog stuk. Maar de teamstats lijken weer wat zinnigs aan te geven. Jullie zullen het daar dus mee moeten doen.

Nou, vooruit dan. Een quote om de lege ruimte wat op te vullen

quote: http://setiathome.berkeley.edu/tech_news.php

28 Jul 2008 21:27:00 UTC
Wow. What a weird weekend. A lot of little minor things went wrong causing a bunch of "perfect storms" in succession. I have a technical term for this which I can't say in public. Anyway, I'll spell some of it out in no particular order and in varying amounts of detail.

Our workunit storage server filled up again. We got the warnings too late, as mounting problems were keeping the server status scripts from running, which obscured a rather large assimilator queue backlog. When results stay on disk waiting to be assimilated, so does their respective workunit. Plus with Astropulse ramping up those giant workunits were filling up the storage faster than usual. Eric did already put in code for the splitter (which generates the workunits) to check for a full disk before attempting to write anything. Of course, this fix was only deployed in beta so far. The result, there are about 20000 workunits of zero length, which will cause annoying errors for all clients trying to download them, but they should pass through like kidney stones before too long. For a while I stopped the splitters to reduce the disk usage. Today we put the updated splitter in the main project.

We've been having general scheduler problems over the last week as BOINC code updates were made in preparation for Astropulse. We haven't built a new scheduler process in a while which brought to light several problems, mostly due to our database schema being outdated and therefore out of sync with what the code expected. This didn't cause any data corruption, but caused random hosts to be unable to connect. For no real good reason a lot of hosts reporting problems were Macs which added to the difficulty of diagnosis - we thought it was an architecture dependent issue at first. In any case, we got beyond understand those problems late last week and planned to clean it all up early this week. There was some miscommunication and the new "broken" scheduler was turned on again last Friday for about a day.

On Sunday our bandwidth dropped to zero. At this point we threw up our hands and figured we'll figure this out when we're all in the lab together on Monday (today). Remember we do have a policy that it is perfectly okay for our project to be down for a day or two as this is BOINC and people can crunch on other projects in the meantime. Nevertheless, we don't want to be too cavalier about that as we know a lot of people just crunch SETI data. But still, given our meager resources our average uptime is quite good, so a day or two of occasional downtime is acceptable. But I digress... Turns out apache was the problem on this server (once again a problem obscured by alerts not running due to mounting issues) and we had to kick it a couple times (including a full system reboot due to messed up shared memory segments) to get it going again. Once going, both download servers choked. So I had to kick both of them as well.

Then we ran out of work. Remember how I said we put a fix in the splitter to keep from writing if the workunit storage server was full? Well, it was being extra cautious and not writing if it said storage server was over 90% full. So as I write this paragraph we're low on work to send out, but Eric gave me permission to turn file deletion on in beta so that'll clear up space soon enough and we'll generate fresh work.

And oh yeah.. we were slashdotted again on Sunday.

That's enough for today. We'll have the usual outage tomorrow (may be slightly longer than normal) and maybe start splitting some more Astropulse workunits to send out!

- Matt

{verhaal}
DPC SETI@Home hitparade van 29 juli 2008

Daily Top 30
Flushers: 0 / 0 (0,0 %)
pos		daily	member	total
	More...

Overall Top 30
pos		total	member	daily
	More...

Teams Daily Top 15
pos		daily	team	total
1.	()	6.803.761	SETI.USA	742.575.717	(1)
21.	(3)	1.139.172	BOINC@AUSTRALIA	84.222.543	(31)
22.	()	1.115.823	OcUK - Overclockers UK	151.973.110	(13)
23.	(2)	1.035.685	Canada	98.718.365	(22)
24.	()	997.890	BOINC@Poland	66.412.782	(38)
25.	(1)	988.809	Team Art Bell	157.575.812	(11)
26.	()	969.460	UK BOINC Team	89.379.684	(27)
27.	()	962.320	Elite Games	59.106.893	(41)
28.	()	889.452	Dutch Power Cows	89.663.205	(26)
29.	(4)	835.551	PC Perspective Killer Frogs	87.905.055	(29)
30.	()	811.245	AUSTRIA - NATIONAL - TEAM	87.846.247	(30)
31.	(1)	804.537	BOINC SETI@home RUSSIA	79.767.324	(32)
32.	(3)	752.932	Team NIPPON	77.175.280	(33)
33.	(10)	747.215	Planet 3DNow!	64.211.359	(39)
34.	()	705.299	Phoenix Rising	106.559.253	(21)
35.	(3)	661.117	Ars Technica	114.822.257	(20)
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Teams Overall Top 15
pos		total	team	daily
1.	()	742.575.717	SETI.USA	6.803.761	(1)
19.	()	117.115.493	BOINC.Italy	612.744	(38)
20.	()	114.822.257	Ars Technica	661.117	(35)
21.	()	106.559.253	Phoenix Rising	705.299	(34)
22.	()	98.718.365	Canada	1.035.685	(23)
23.	()	98.059.604	Universe Examiners	554.488	(40)
24.	()	97.591.563	US NAVY	1.543.632	(11)
25.	()	90.570.652	U.S.Air Force	1.412.330	(15)
26.	()	89.663.205	Dutch Power Cows	889.452	(28)
27.	()	89.379.684	UK BOINC Team	969.460	(26)
28.	()	88.530.446	Amateur Radio Operators	1.394.781	(17)
29.	()	87.905.055	PC Perspective Killer Frogs	835.551	(29)
30.	()	87.846.247	AUSTRIA - NATIONAL - TEAM	811.245	(30)
31.	()	84.222.543	BOINC@AUSTRALIA	1.139.172	(21)
32.	()	79.767.324	BOINC SETI@home RUSSIA	804.537	(31)
33.	()	77.175.280	Team NIPPON	752.932	(32)
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Megaflush Top 5
pos	Team	Flush	Date
1.	[DPC] Switch	74.525	25-04-2008
2.	[DPC]TeamGrazzie	46.517	21-06-2008
3.	Sp@ceNv@der	46.081	12-07-2008
4.	hansR	42.659	12-07-2008
5.	Searchy! Internet Services V.O.F.	32.326	25-04-2008
More...

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Bron

[Black Piet]

Zoals in het vorige topic werd aangegeven, doen de stats van Boincstats het wel. Het een flushrecord van 45K gerealiseerd .
Het is bij ons even wachten totdat Speedkikker weer een goede XML ontvangt. Morgen zullen we dus wel weer stats hebben

[Bernd]

Hmm, balen dat de stats het nog steeds niet doen, maar ik kan zelf wel melden dat ik de heuglijke mijlpaal van 100000 gehaald heb

[Anoniem: 267540]

http://tadah.mine.nu/inde...20Power%20Cows&prefix=sah die stats doen het wel goed qua flushes

Gefeliciteerd met de 100.000 Bertrand, heb zelf ook die mijlpaal gehaald tijdens de afwezigheid van de stats (-0- 102.702). Een goed excuus om vanavond een lekker witbiertje open te maken.

[hansR]

Beter een beetje stats dan geen stats

Aan de andere kant komen er dan wel meer reakties

[Wildfire]

Toch jammer, ook vandaag geen complete stats... hopelijk morgen weer wel, ik doe vandaag een flinke flush namelijk