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Download server glitch
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Author | Message |
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Eric Korpela Send message Joined: 3 Apr 99 Posts: 1382 Credit: 54,506,847 RAC: 60 |
We had a problem with one of our download servers that was slowing down downloads and slowing down work generation. We've fixed the problem, but there are lots of people out there trying to download. It'll probably be a while before our downloads aren't swamped with requests. Work ready to send has started trending back up, so we shouldn't end up with a work shortage. @SETIEric@qoto.org (Mastodon) |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13864 Credit: 208,696,464 RAC: 304 |
Unfortunately the issue is still occurring, just not as badly. 2-10 retries to get downloads restarting when they go in to backoff, instead of 50+ for no result. Grant Darwin NT |
ronssito Send message Joined: 8 Feb 00 Posts: 19 Credit: 43,465,609 RAC: 63 |
yep day 2 with no boincstats |
Stephen "Heretic" Send message Joined: 20 Sep 12 Posts: 5557 Credit: 192,787,363 RAC: 628 |
Unfortunately the issue is still occurring, just not as badly. . . At this point I am getting that too but I am guessing it is just congestion as Eric suggested. Stephen . . |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13864 Credit: 208,696,464 RAC: 304 |
Unfortunately the issue is still occurring, just not as badly. It may be load related- but I've never seen this issue at any other time after an extended outage (even with a similar deficit of Work in progress). Usually the downloads will start, the timer counting up but nothing actually downloading after 30s to a couple of minutes it will then time out. Here the download times out instantly, or after a second or so. And the actual download speed when the download does start is much, much slower than usual (especially so considering it's only 1-2 WU at a time, not my usual dozen). Grant Darwin NT |
Bernie Vine Send message Joined: 26 May 99 Posts: 9958 Credit: 103,452,613 RAC: 328 |
All good here, tasks completing, uploading, new ones downloading. |
Jimbocous Send message Joined: 1 Apr 13 Posts: 1857 Credit: 268,616,081 RAC: 1,349 |
Back to intermittently needing to force retrys, and having the retrys fail complaining of project communication failure. Very different from the "no tasks available" syndrome commonly attributed to traffic after and outage ... |
Wiggo Send message Joined: 24 Jan 00 Posts: 37007 Credit: 261,360,520 RAC: 489 |
All's fine here, but it has been for the last 24hrs. Cheers. |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
I am in agreement with Grant. This is not showing the typical symptoms of heavy congestion after an outage. I am still being left with hosts unable to report tasks because of stuck downloads. When you do manually unstick them, then you get 98% of the download to download before a few stragglers stick again. The stuck tasks keep pushing their backoffs larger and larger at each countdown attempt. When I do manually get the tasks to download and report, I am so far past the normal 5 minute countdown that the request for work is in the hundreds which increases the likelihood of getting more stuck tasks at the end of the download session. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
Pretty disheartening to watch a brand new download of a dozen tasks on a host go instantly to a 5 hour backoff on first attempt to download. No other tasks were stuck on any other host. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
.:krypt08700:. Send message Joined: 20 Jul 02 Posts: 5 Credit: 6,788,712 RAC: 0 |
Issue seems to be resolved for me. I did have to retry a few stuck downloads though. |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
Still getting stuck tasks on all hosts. Backoffs start at 10 minutes and rapidly progress to several hours. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13864 Credit: 208,696,464 RAC: 304 |
Yep, 50+ retries to get a WU or 3, then that's it. Instant timeouts (1 second gets added to the Elapsed time after it times out) on each attempt for another 50+ retries. Grant Darwin NT |
Christian Diekmann Send message Joined: 30 Mar 00 Posts: 13 Credit: 60,615,800 RAC: 163 |
Hello everybody! Hello SETI-Team! These failures (and also the maintenance once a week) show, however, that it makes sense to greatly increase the amount of work units for the clients. The client is with his settings in the point at "Save at least 10 working days" and "Save for an additional 10 working days" absolutely Antediluvian! That has never worked. Maybe that was once meant for computers that were not that fast. Since 100 work units were sufficient for 1-2 weeks. I do not even have a very fast computer but it's done with 100 work units after 20 hours. So where are the WUs for the next 19 days? Please take care of the program, so that all users just get more WUs and just really (!) a maximum of 20 days can count to minimize these failures in terms of work performance. Over the years, too much working time is lost in which no calculation can take place. And the constant failures are not really fun to continue to work for SETI. I've been counting on SETI for over 20 years now and I think I can bring in this objection. Please, finally, revise the client in the point of the amount of WUs! I think that I speak for many users here. |
rob smith Send message Joined: 7 Mar 03 Posts: 22569 Credit: 416,307,556 RAC: 380 |
Quite the contrary - it would make much more sense to dramatically reduce the amount of work out in the field, thus reducing the stress on the servers until such time as they are stabilized again. Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
Kissagogo27 Send message Joined: 6 Nov 99 Posts: 716 Credit: 8,032,827 RAC: 62 |
the " additionnal" is bad named, it's time between 2 asks for Wu .... with 0.01 it's done every 15mn :p |
tullio Send message Joined: 9 Apr 04 Posts: 8797 Credit: 2,930,782 RAC: 1 |
My cache has alwas been two and half day work. But finally I god rid of 38 ghost tasks which should have arrived on January 7 and never arrived. Maybe I was moving a PC to a different room with a WiFi connection to the router and it worked only partially. Now I have retired my old SUN workstation after 11 years of service and brought that PC to my living room, closer to the router. Tullio |
Rafi Send message Joined: 27 Jan 19 Posts: 1 Credit: 2,009,067 RAC: 18 |
This will keep happening until the s/w bloat is sorted and the hardware is updated. Wäre es dann nicht günstig, wenn die User aufgefordert würden, ihre Rechner für ein bis mehrere Tage offline zu setzen. Das wäre in der Regel produktiver, als die Server zu berennen. Wäre diese Meldung auf Seti@home nicht gekommen, wäre ich noch verzweifelt und hätte meinem Sohn jedwede weitere Nutzung verboten, weil ich davon aus ging, dass er meinen PC gegen die Wand gefahren hat. Man kann sie ja jederzeit per E-Mail reaktivieren. Mit freundlichen Grüßen Andreas aka 1080 |
Manfred Reiff Send message Joined: 27 Apr 18 Posts: 2 Credit: 1,725,994 RAC: 0 |
I had problems to upload finished tasks and problems downloading new tasks since Friday morning (0700 UTC). I ran out of tasks during Friday afternoon local time so I decided to swith to other projects. Since Sunday afternoon (UTC) downloading new tasks seems to work normally. In the beginning I had still some problems to upload finished tasks. This problem seems to be solved too. Since ~1630 UTC I experienced no problems. But there are 330+ finished tasks hanging around at Mr. Pen Dings coffee shop... ;-) |
Manfred Reiff Send message Joined: 27 Apr 18 Posts: 2 Credit: 1,725,994 RAC: 0 |
This will keep happening until the s/w bloat is sorted and the hardware is updated. Hi Andreas! Weshalb soll(t)en wir unsere Computer für einen oder mehrere Tage offline setzen? Sicher, dies würde einiges an Energie einsparen. Aber so lange Andere andere nutzlose Dinge tun, sehe ich für mich keinen Grund meine Rechner abzuschalten. So lange Viele in meiner Gegend gegenwärtig Euro um Euro für die größte Drogen-/Alkoholparty genannt "Karneval" oder geschmacklose "Verkleidungen" ausgeben oder ihr Geld auf andere Art verplempern, werde ich meine Rechner weiterhin für sinnvolle(re), wissenschaftliche Berechnungen bereitstellen. Bitte jetzt keine Diskussion übers Energiesparen - auf dem Ohr bin ich inzwischen taub angesichts der vielen anderweitigen Energieverschwendungen. Viele von uns arbeiten an mehr als einem Projekt - ich arbeiten an insgesamt vier Projekten mit. Meine Grafikkarte (siehe unten) arbeitet derzeit zu 85-90% der Zeit an Collatz tasks, den Rest der Zeit an Einstein@Home GPU tasks. Die 20 Prozessoren arbeiten derzeit für SETI@Home CPU tasks sowie Einstein@Home CPU tasks. In Zeiten, in denen das Projekt down ist, switsche ich um auf Milkyway@Home. An diesem Wochenende waren unglücklicherweise beide Projekte down - Milkyway@Home ist es immer noch. Seti@Home arbeitet seit Sonntag Nachmittag wieder. Allerdings befinden sich mehr als 330 beendete Tasks gegenwärtig noch in der Überprüfung. Ich habe Seti@Home in den vergangenen Monaten zu Gunsten anderer Projekte vernachlässigt. Da aber zumindest bei einem anderen Projekt, Milkyway@Home, schon seit Monaten immer wieder kurzfristig, zum Teil längere, Serverausfälle zu beklagen sind, habe ich Seti@Home reaktiviert. Ich hatte im Vorfeld (am Donnerstag) die Anzahl der gedownloadeten Tasks für alle Projekte deutlich erhöht (eine Eingebung?), doch wurden diese bis Samstag Abend alle abgearbeitet. Meine Konfiguration: Intel Core i9-7900X@4100 MHz mit Wasserkühlung, 64 GB RAM@3000 MHz, nVidia GTX 1080 Ti mit 11 GB RAM, MS Windows 10 Home. Auf meinem zweiten Rechner hatte ich die Bearbeitung von Seti@Home zeitweise ausgesetzt und das Projekt angehalten. Doch inzwischen läuft auch dort wieder alles normal. Dessen Konfiguration: Intel Core i7-8700K@3700 MHz mit Lüftkühlung, 32 GB RAM@3000 MHz, nVidia GTX 1070 Ti mit 8 GB RAM, MS Windows 10 Pro. Gruß Manfred |
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