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Panic Mode On (51) Server problems?
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Author | Message |
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kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
Dunno what's going on, but the splitters have still not picked up the pace since the outrage. Very little work coming down the pipeline to this cruncher. Not even saturating the bandwidth. Meow? "Freedom is just Chaos, with better lighting." Alan Dean Foster |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13736 Credit: 208,696,464 RAC: 304 |
Still the splitters aren't producing enough work, they've actually cut back further on their production levels. Grant Darwin NT |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
Hmmm..... Returning home from work, I see that work generation is still in the ol' crapper. Wonder what's holding it back. Meowfffffffft. "Freedom is just Chaos, with better lighting." Alan Dean Foster |
Bernd Noessler Send message Joined: 15 Nov 09 Posts: 99 Credit: 52,635,434 RAC: 0 |
@Sten-Arne The apache at port 80 of 208.68.240.13 is down since monday. You can make an entry in the hosts file of your machine. 208.68.240.18 boinc2.ssl.berkeley.edu Then restart boinc and the downloads should work. |
Wiggo Send message Joined: 24 Jan 00 Posts: 34744 Credit: 261,360,520 RAC: 489 |
I'm sure that the guys will sort things out in the morning. ;) Cheers. |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
I'm sure that the guys will sort things out in the morning. ;) I kinda thought they would do that today..... Things are just not flowing like they should be. "Freedom is just Chaos, with better lighting." Alan Dean Foster |
Bernd Noessler Send message Joined: 15 Nov 09 Posts: 99 Credit: 52,635,434 RAC: 0 |
I mentioned it in a different thread on wednesday. But it seems nobody has read it. :-( |
Bernd Noessler Send message Joined: 15 Nov 09 Posts: 99 Credit: 52,635,434 RAC: 0 |
That has to be done on client side. The TTL of the boinc2 entries is only 5 minutes. So your namerserver should give you the .13 first and after 5 minutes the .18 in first place. |
Bernd Noessler Send message Joined: 15 Nov 09 Posts: 99 Credit: 52,635,434 RAC: 0 |
You can check your nameserver with a ping. Send a ping to boinc2, wait 5 minutes and then send another ping. The IP's should be different. |
Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14650 Credit: 200,643,578 RAC: 874 |
Well it could and should be done on the server side as a round robin function IMO. My DNS server did not in any situation try the working IP, it always tried the non working, and that for days. Flushing the DNS cache made no difference, rebooting made no difference, and I'm sure I'm not alone with this problem, which easily could be fixed on the server side. AFAIK, it is implemented as round robin DNS - it's always looked that way when I've tracked it down. It's worth trying ipconfig/displaydns to find out what your local machine's DNS resolver currently thinks the IP address should be before/during/after a download request - it shows the current TTL timer countdown as well, which is useful. If displaydns consistently shows the wrong address, then something upstream (DNS server/proxy/ISP) is mis-handling TTL. Or there might, indeed, be a mis-configuration at SETI - that would affect us all, and we can check that by comparing notes here. There used to be a bug in BOINC, which Ned Ludd and I finally got them the acknowledge and fix in v6.10.33 (March 2009) - If BOINC had already tried a download, and failed, it carried on attempting to download from the same IP address for evermore, rather than re-querying DNS (which would pick up the round robin). It wasn't BOINC's fault - it was a bug in the underlying libcurl library that handles the TCI/IP layer. And it shouldn't be a problem in any current version of BOINC. |
Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14650 Credit: 200,643,578 RAC: 874 |
Well it could and should be done on the server side as a round robin function IMO. My DNS server did not in any situation try the working IP, it always tried the non working, and that for days. Flushing the DNS cache made no difference, rebooting made no difference, and I'm sure I'm not alone with this problem, which easily could be fixed on the server side. In that case, half your downloads will stall, and you will have to do a (carefully-timed) restart of BOINC to free them while the 'right' server is on DNS duty. That's what I like about crunching for SETI, rather than other projects - it actually feels like you're doing some of the work yourself, not just leaving it to the computer. ;-) |
Bernd Noessler Send message Joined: 15 Nov 09 Posts: 99 Credit: 52,635,434 RAC: 0 |
I have tried it with Win XP in a VirtualBox. I have a BIND as nameserver in my local network. The IP changes every 5 minutes. Do you have a local nameserver or do you use the nameserver of your ISP ? |
Link Send message Joined: 18 Sep 03 Posts: 834 Credit: 1,807,369 RAC: 0 |
I have posted that in the other thread about this problems, is that maybe something better than the current round robin DNS? Since it's not the first time that we have problems like that here, I wonder if it would not cause less problems if SETI had two different download server URLs, for example dl1.ssl.berkeley.edu and dl2.ssl.berkeley.edu and send both as possible download locations like rosetta is doing for example: |
Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14650 Credit: 200,643,578 RAC: 874 |
Well, it's never happened before, or maybe it has but I've forgotten. It must have happened since I already had edited my host file long time ago, but commented out the boinc server parts. It has happened before, but it's an intermittent problem which keeps cropping up, hanging around for a while, and going away again. I guess that because downloads are sort-of working, and they all go out over the same link, it doesn't show up as a problem on the lab monitoring tools: and they don't know it needs kicking until we kick up a fuss here, or someone on the 'inside' mailing distribution circuit passes on a message. Hint to mods? |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
Now if we could just get the splitters back in high gear...... Meowgrrrrrrrrr. "Freedom is just Chaos, with better lighting." Alan Dean Foster |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
Could it be??? Did the boyz kick something into gear before locking up the lab for the weekend? The Cricket graphs just maxxed for the first time in a while and splitter speed is up. More power, Scotty!!!! "Freedom is just Chaos, with better lighting." Alan Dean Foster |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13736 Credit: 208,696,464 RAC: 304 |
Well, it was nice while it lasted. They're back to producing just a trickle again. Grant Darwin NT |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
Yeah, shucks. Dunno what's limiting it. "Freedom is just Chaos, with better lighting." Alan Dean Foster |
Bernd Noessler Send message Joined: 15 Nov 09 Posts: 99 Credit: 52,635,434 RAC: 0 |
Nothing changed with 208.68.240.13. The forwarding of port 80 doesn't work. Interesting is the forwarding of port 443 (https) is working and connects me to vader. |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
Well, little work is making it's way down to the kitties. Not that they cannot connect or anything, but the scheduler is not sending out any tunas. If my cache is running down, some faster fishes than mine are gonna be flopping on the beach soon. "Freedom is just Chaos, with better lighting." Alan Dean Foster |
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