mersenneforum.org > Data mersenne.ca server migration and probable downtime (Nov 2020)
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2020-11-17, 18:42   #45
lycorn

Sep 2002
Oeiras, Portugal

11·131 Posts

Quote:
 Originally Posted by James Heinrich Hey, that's clever! It works in Incognito.
Well, not here. I had already tried it, and did it again just now, but to no avail.

2020-11-18, 02:05   #46
James Heinrich

"James Heinrich"
May 2004
ex-Northern Ontario

62528 Posts

Quote:
 Originally Posted by lycorn Well, not here. I had already tried it, and did it again just now, but to no avail.
I fixed my Chrome weirdness: I deleted all site cookies for mersenne.ca and now it magically worked.

And then, for no reason I can fathom, my computer suddenly decided just now that mersenne.ca should be at the old 74.* IP. No idea why. I've just updated the DNS config for mersenne.ca on the old server to point to the new IP, requests should even be getting to the old server but just in case they do that may help fix it. I'll be taking the old server offline in a couple days and then (one hopes) the probably should go away entirely.

 2020-11-18, 02:26 #47 petrw1 1976 Toyota Corona years forever!     "Wayne" Nov 2006 Saskatchewan, Canada 23×197 Posts It's FAST!!!!
2020-11-18, 03:51   #48
Mark Rose

"/X\(‘-‘)/X\"
Jan 2013

24·3·61 Posts

Quote:
 Originally Posted by James Heinrich I fixed my Chrome weirdness: I deleted all site cookies for mersenne.ca and now it magically worked. And then, for no reason I can fathom, my computer suddenly decided just now that mersenne.ca should be at the old 74.* IP. No idea why. I've just updated the DNS config for mersenne.ca on the old server to point to the new IP, requests should even be getting to the old server but just in case they do that may help fix it. I'll be taking the old server offline in a couple days and then (one hopes) the probably should go away entirely.
Some ISP recursive resolvers don't respect short TTLs, especially under 60 seconds. When I looked at your DNS records earlier they were all set to 3600, so that shouldn't normally be a problem. And I think most of the problem resolvers have disappeared because DNS isn't a big bandwidth load like it used to be, and much of the modern internet would break.

I'd try power cycling your router. I'd also try ipconfig /flushdns on Windows if that's what you run.

 2020-11-18, 16:40 #49 James Heinrich     "James Heinrich" May 2004 ex-Northern Ontario 324210 Posts So, things were working fine, and then this morning they seem to have fallen apart again. Gmail alternates between knowing what mersenne.ca is and having no idea it even exists. I assume there's some DNS still pointing to the nonexistent old server that's slowly bleeding out and that it should eventually resolve itself, but it's highly frustrating.
 2020-11-18, 20:40 #50 lycorn     Sep 2002 Oeiras, Portugal 101101000012 Posts This morning, around 10:30 am or so, I managed to connect. The site was apparently OK, except for the data tables that weren't showing up. Some other functionalities I tried were fine. Now (20:35) the site is again out of reach.
 2020-11-18, 20:42 #51 James Heinrich     "James Heinrich" May 2004 ex-Northern Ontario 2·1,621 Posts DNS is not my friend. I've been fighting with it, and GoDaddy tech support, as to how I should have it configured. It's still half-working, sometimes more, sometimes less: https://dnschecker.org/#A/ns1.sili.net/198.251.72.75 Last fiddled with by James Heinrich on 2020-11-19 at 00:20
 2020-11-19, 21:09 #52 James Heinrich     "James Heinrich" May 2004 ex-Northern Ontario 2·1,621 Posts Good news, I think. I found a secret setting in GoDaddy DNS's management page that I needed to change. Sadly despite two support chats with them describing the issue they never once pointed me in the right direction. DNSchecker.org is now showing me 100% correctly resolved, so I think that part of the problem is (finally) resolved. I still have a plethora of other migration headaches to deal with, but none (I think) that affect mersenne.ca
 2020-11-19, 21:56 #53 lycorn     Sep 2002 Oeiras, Portugal 11×131 Posts Everything fine here 👍
 2020-11-26, 03:16 #54 James Heinrich     "James Heinrich" May 2004 ex-Northern Ontario CAA16 Posts I am planning one more big database shuffle tomorrow, starting sometime around 12h from now. I will be taking the site down for however long it takes, which I'm roughly estimating at around 3h but it might be longer.
 2020-11-26, 07:22 #55 lycorn     Sep 2002 Oeiras, Portugal 11×131 Posts Hmm,... If it is working, don't fix it. 😁 Or is it not? Good luck, anyway.

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