[SETI@Home] hitparade van 17 juni

[APClll]

Wat is dat nu? Zit er niemand meer de hele dag te F5-en op de stats-pagina zelf en is niemand meer geinteresseerd in de DPCH zelf? Niemand die hier de nieuwe leden wil feliciteren? Of zit iedereen braaf op uw statsposter te wachten?

In dat geval: hier zijn de stats van vandaag

Welkom Sypheron
Welkom picasso
Welkom wrovers

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

17 Jun 2009 20:16:11 UTC
I've been busy. Almost too much to write about, none of it all that interesting in the grand scheme of things, so I'll just stick to recent stuff.

Our main problem lately has been the mysql database. Given the increased number of users, and the lack of astropulse work (which tends to "slow things down"), the result table in the mysql database is under constant heavy attack. Over the course of a week this table gets severely fragmented, thus resulting in more disk i/o to do the same selects/updates. This has always been a problem, which is why we "compress" the database every tuesday. However, the increased use means a larger, more fragmented table, and it doesn't fit so easily into memory.

This is really a problem when the splitter comes along every ten minutes and checks to see if there's enough work available to send out (thus asking the question: should I bother generating more work). This is a simple count on the result table, but if we're in a "bad state" this count which normally takes a second could take literally hours, and stall all other queries, like the feeder, and therefore nobody can get any work. There are up to six splitters running at any given time, so multiple this problem by six.

We came up with several obvious solutions to this problem, all of which had non-obvious opposite results. Finally we had another thing to try, which was to make a tiny database table which contains these counts, and have a separate program that runs every so often do these counts and populate the proper table. This way instead of six splitters doing a count query every ten minutes, one program does a single count query every hour (and against the replica database). We made the necessary changes and fired it off yesterday after the outage.

Of course it took forever to recover from the outage. When I checked in again at midnight last night I found the splitters finally got the call to generate more work.. and were failing on science database inserts. I figured this was some kind of compile problem, so I fell back to the previous splitter version... but that one was failing reading the raw data files! Then I realized we were in a spate of raw data files that were deemed "questionable" so this wasn't a surprise. I let it go as it was late.

As expected, nature took its course and a couple hours later the splitter finally found files it could read and got to work. That is, until our main /home account server crashed! When that happens, it kills *everything*.

Jeff got in early and was already recovering that system before I noticed. He pretty much had it booted up just when I arrived. However, all the systems were hanging on various other systems due to our web of cross-automounts. I had to reboot 5 or 6 of them and do all the cleanup following that. In one lucky case I was able to clean up the automounter maps without having to reboot.

So we're recovering from all that now. Hopefully we can figure out the new splitter problems and get that working as well or else we'll start hitting those bad mysql periods really soon.

- Matt

toon volledige bericht

DPC SETI@Home hitparade van 17 juni 2009

Daily Top 30
Flushers: 113 / 1.018 (11,1 %)
pos		daily	member	total
1.	()	18.032	Searchy! Internet Services V.O.F.	10.197.626	(4)
2.	(1)	15.156	[DPC] Switch	9.739.765	(5)
3.	(1)	13.551	[DPC] hansR	15.818.924	(1)
4.	(3)	7.533	F@stmem	2.685.890	(8)
5.	(4)	6.728	Sp@ceNv@der	12.434.491	(3)
6.	(1)	6.296	[DPC]TeamGrazzie	13.490.967	(2)
7.	(3)	6.067	o25o & Dharkon	5.209.909	(6)
8.	(2)	6.025	Ensign Wildfire	3.666.780	(7)
9.	(1)	5.398	dpc_kluizenaar	890.667	(27)
10.	(2)	4.921	seridan	605.381	(36)
11.	(22)	3.939	Intrud3r	183.846	(98)
12.	(3)	2.988	muppet99	289.136	(69)
13.	(11)	2.167	AmeComputers	1.993.636	(12)
14.	(21)	1.982	RWaC	57.210	(186)
15.	(2)	1.906	Rene1970	39.632	(239)
16.	(29)	1.891	Nomen	99.581	(143)
17.	()	1.850	Jox444	1.016.457	(25)
18.	(34)	1.812	bpenris	544.203	(39)
19.	(9)	1.719	Rydo	873.728	(28)
20.	(28)	1.639	Falcon10	372.821	(51)
21.	(7)	1.538	Mr Beamer	2.030.461	(11)
22.	(12)	1.503	Team_Elteor_Borislavj	726.884	(30)
23.	()	1.452	ERBrouwer	190.577	(95)
24.	(2)	1.400	Andre Barnier	37.807	(246)
25.	(82)	1.244	Edwin van der Geest	482.664	(41)
26.	(16)	1.228	HellBringer	113.331	(128)
27.	(5)	1.195	apa	328.378	(66)
28.	(9)	968	Joey van den Berge	356.544	(55)
29.	(13)	951	evildutchman	73.783	(165)
30.	(7)	854	Ignitions	465.551	(44)
	More...

Overall Top 30
pos		total	member	daily
1.	()	15.818.924	[DPC] hansR	13.551	(3)
2.	()	13.490.967	[DPC]TeamGrazzie	6.296	(6)
3.	()	12.434.491	Sp@ceNv@der	6.728	(5)
4.	()	10.197.626	Searchy! Internet Services V.O.F.	18.032	(1)
5.	()	9.739.765	[DPC] Switch	15.156	(2)
6.	()	5.209.909	o25o & Dharkon	6.067	(7)
7.	()	3.666.780	Ensign Wildfire	6.025	(8)
8.	()	2.685.890	F@stmem	7.533	(4)
9.	()	2.595.919	[DPC]Spinpoint	0	(-)
10.	()	2.364.872	[DPC]Trancemaus	0	(-)
11.	()	2.030.461	Mr Beamer	1.538	(21)
12.	()	1.993.636	AmeComputers	2.167	(13)
13.	()	1.875.810	Jan Zandvliet & x-RaY99	608	(35)
14.	()	1.528.357	[DPC]Team Zuid-Holland	636	(33)
15.	()	1.502.870	MAX3400	0	(-)
16.	()	1.469.490	ray	283	(54)
17.	()	1.421.453	Tijntje	753	(32)
18.	()	1.137.232	Speedy67 & Friends	0	(-)
19.	()	1.121.772	visvogel	60	(91)
20.	()	1.096.261	Berkie	605	(36)
21.	()	1.078.741	Quark	74	(90)
22.	()	1.069.176	[DPC] Anticimex & Lock Metaaldetectie	0	(-)
23.	()	1.049.597	[DPC]SjoQing	0	(-)
24.	()	1.024.923	Override	104	(77)
25.	()	1.016.457	Jox444	1.850	(17)
26.	()	982.357	Dadoke	431	(44)
27.	()	890.667	dpc_kluizenaar	5.398	(9)
28.	()	873.728	Rydo	1.719	(19)
29.	()	786.175	MaGNeT aka BlueTooth76	612	(34)
30.	()	726.884	Team_Elteor_Borislavj	1.503	(22)
	More...

Teams Daily Top 15
pos		daily	team	total
1.	()	1.238.319	SETI.USA	1.099.258.030	(1)
21.	(4)	236.387	Team Art Bell	214.204.466	(17)
22.	(2)	217.757	BOINC@AUSTRALIA	158.050.764	(23)
23.	(2)	217.316	Elite Games	118.393.334	(36)
24.	(2)	216.186	Brasil [SETIBR]	67.676.655	(53)
25.	(1)	213.909	BOINC@Poland	138.782.659	(30)
26.	()	179.376	U.S.Air Force	157.833.416	(25)
27.	(7)	178.615	Amateur Radio Operators	157.076.588	(26)
28.	(8)	165.057	Dutch Power Cows	143.467.674	(27)
29.	(2)	160.053	Boone Community School District - Iowa	104.219.551	(39)
30.	(2)	158.086	Planet 3DNow!	120.734.105	(35)
31.	(1)	157.073	UK BOINC Team	140.758.056	(28)
32.	(2)	156.612	Ars Technica	158.937.169	(22)
33.	()	151.750	Team NIPPON	124.132.070	(34)
34.	(5)	146.711	RoEduNet	75.409.701	(49)
35.	(4)	145.237	BOINC.Italy	157.939.421	(24)
	More...

Teams Overall Top 15
pos		total	team	daily
1.	()	1.099.258.030	SETI.USA	1.238.319	(1)
20.	()	175.100.751	Phoenix Rising	240.698	(20)
21.	()	167.066.275	Canada	258.687	(18)
22.	()	158.937.169	Ars Technica	156.612	(32)
23.	()	158.050.764	BOINC@AUSTRALIA	217.757	(22)
24.	()	157.939.421	BOINC.Italy	145.237	(35)
25.	()	157.833.416	U.S.Air Force	179.376	(26)
26.	()	157.076.588	Amateur Radio Operators	178.615	(27)
27.	()	143.467.674	Dutch Power Cows	165.057	(28)
28.	()	140.758.056	UK BOINC Team	157.073	(31)
29.	()	139.421.071	Universe Examiners	120.719	(42)
30.	()	138.782.659	BOINC@Poland	213.909	(25)
31.	()	131.521.016	AUSTRIA - NATIONAL - TEAM	132.223	(39)
32.	()	127.625.693	BOINC SETI@home RUSSIA	131.617	(40)
33.	()	124.259.933	PC Perspective Killer Frogs	117.303	(44)
34.	()	124.132.070	Team NIPPON	151.750	(33)
	More...

Megaflush Top 5
pos	Team	Flush	Date
1.	[DPC]TeamGrazzie	553.056	04-01-2008
2.	chelloo.com	261.227	09-01-2008
3.	[DPC]Spinpoint	174.423	14-06-2007
4.	hansR	170.409	17-08-2008
5.	REISinformatiegroep	165.307	18-04-2007
More...

Mijlpalen

madmax240	80.000
Racemol	40.000
jappe	8.000
MRCL	4.000
Ralph	1.000

When do you get them

Team	Average	Days
BOINC.Italy	178.652	662
Amateur Radio Operators	180.264	672
Ars Technica	178.276	695
Team MacNN	139.346	1.152

Nieuwe Leden

Sypheron	232
picasso	4.984
wrovers	81

SETI@Home Links
SETI@Home webpage
SETI@Home forum
DPCH Suggestiepagina
Bron

---

Ha, in mijn enthousiamse wilde ik blijkbaar de stats twee keer posten
Na de auto-image-check drukte ik blijkbaar te snel of te langzaam op "enter"

Er is iets fout gegaan. Probeer het later nog eens, of ga terug.

Dubbelpost: het bericht is identiek aan uw laatst geplaatste bericht
(interne identificatie: topic::new_message::double_post)

Hieronder vind je de belangrijkste ingevoerde waarden terug, met een simpele copy&paste kan je deze weer gebruiken.

[grass460]

welkom iedereen

en de mijlpalen ook proficiat

btw krijg ik mijn wu niet meer geupload iemand anders ook dit probleem ?

[Xaverius]

Acht plekken omhoog in de daily, ik ben trots! Gefeliciteerd teamgenoten, morgen weer?
En een warm welkom aan de nieuwe leden, dat jullie galacatische weides veel vruchten mogen afwerpen.

[APClll]

grass460 schreef op donderdag 18 juni 2009 @ 22:09:
(...)
btw krijg ik mijn wu niet meer geupload iemand anders ook dit probleem ?

Hier ook moeilijkheden, zowel met up- als downloaden van WU's.

18-6-2009 23:14:39|SETI@home|Started upload of 30mr09ab.10053.2526.3.8.146_2_0
18-6-2009 23:14:53|SETI@home|Finished upload of 09mr09aa.25072.7025.6.8.14_0_0
18-6-2009 23:15:01||Project communication failed: attempting access to reference site
18-6-2009 23:15:01|SETI@home|Temporarily failed upload of 30mr09ab.10053.2526.3.8.146_2_0: connect() failed
18-6-2009 23:15:01|SETI@home|Backing off 37 min 35 sec on upload of 30mr09ab.10053.2526.3.8.146_2_0
18-6-2009 23:15:02||Internet access OK - project servers may be temporarily down.

Maar als de servers down zijn, waarom kan ik dan 20 seconden eerder wel werk uploaden

Volgens de stats zijn de servers gewoon draaiende.

quote: http://setiathome.berkeley.edu/sah_status.html

[As of 18 Jun 2009 21:10:16 UTC

Program	Host	Status
download server 1	bane	Running
download server 2	vader	Running
upload server	bruno	Running

[ Voor 3% gewijzigd door APClll op 18-06-2009 23:22 ]

[grass460]

APClll schreef op donderdag 18 juni 2009 @ 23:21:
[...]

Hier ook moeilijkheden, zowel met up- als downloaden van WU's.


[...]


Maar als de servers down zijn, waarom kan ik dan 20 seconden eerder wel werk uploaden

Volgens de stats zijn de servers gewoon draaiende.

[...]

dat heb ik ook ja

18-6-2009 23:24:23 SETI@home Started upload of 10mr09ac.6383.511288.5.8.239_0_0
18-6-2009 23:24:46 Project communication failed: attempting access to reference site
18-6-2009 23:24:46 SETI@home Temporarily failed upload of 10mr09ac.6383.511288.5.8.239_0_0: HTTP error
18-6-2009 23:24:46 SETI@home Backing off 2 min 14 sec on upload of 10mr09ac.6383.511288.5.8.239_0_0
18-6-2009 23:24:47 Internet access OK - project servers may be temporarily down.
18-6-2009 23:25:30 SETI@home Computation for task 12mr09ad.29707.18477.4.8.57_0 finished
18-6-2009 23:25:30 SETI@home Starting 12mr09ad.29707.18477.4.8.60_0
18-6-2009 23:25:30 SETI@home Starting task 12mr09ad.29707.18477.4.8.60_0 using setiathome_enhanced version 608
18-6-2009 23:25:32 SETI@home Started upload of 12mr09ad.29707.18477.4.8.57_0_0
18-6-2009 23:25:54 Project communication failed: attempting access to reference site
18-6-2009 23:25:54 SETI@home Temporarily failed upload of 12mr09ad.29707.18477.4.8.57_0_0: HTTP error
18-6-2009 23:25:54 SETI@home Backing off 1 min 0 sec on upload of 12mr09ad.29707.18477.4.8.57_0_0
18-6-2009 23:25:55 Internet access OK - project servers may be temporarily down.
18-6-2009 23:26:55 SETI@home Started upload of 12mr09ad.29707.18477.4.8.57_0_0
18-6-2009 23:27:00 SETI@home Started upload of 10mr09ac.6383.511288.5.8.239_0_0
18-6-2009 23:27:11 SETI@home Finished upload of 12mr09ad.29707.18477.4.8.57_0_0
18-6-2009 23:27:15 SETI@home Finished upload of 10mr09ac.6383.511288.5.8.239_0_0
18-6-2009 23:27:35 SETI@home Sending scheduler request: To fetch work.
18-6-2009 23:27:35 SETI@home Reporting 5 completed tasks, requesting new tasks for GPU