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TPCBF
Master Cruncher USA Joined: Jan 2, 2011 Post Count: 1993 Status: Offline Project Badges: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
So does this mean the outage / maintenance that was planned for the 25th is past, or were you unable to do that because systems were down and will that have to happen at some point in the future? There was a post by WCGAdmin (who ever that might be) that the scheduled maintenance did finish...Ralf ![]() |
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Rickjb
Veteran Cruncher Australia Joined: Sep 17, 2006 Post Count: 666 Status: Offline Project Badges: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Thank you for the explanation of the outage, TigerLily, but ...
why was there almost total silence from WCG for about 6 days during the outage? The WCG internet home page, real or mocked-up standby, was up most of the time. Could very brief updates not have been placed on that, say daily, just to let us, your research partners, know that WCG was not being closed down permanently? Personally, I recently made a significant donation to WCG using after-tax dollars, and I think we deserve better treatment. |
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hchc
Veteran Cruncher USA Joined: Aug 15, 2006 Post Count: 837 Status: Offline Project Badges: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
You are running servers on DHCP addresses? ![]() ![]() ![]() Well, why am I surprised about this, common good practices that any machine that needs to be reachable, from anywhere, gets a static IP address just don't seem to be known or followed... Ralf You're absolutely right, Ralf. Forgot to notice that. My access point, printer, all servers/services are assigned statically even at home. Only client devices get DHCP leases. To mitigate this from happening, WCG network and server admins can simply make sure all servers/services, routers, switches, load balancers, etc are using static network configs. (Of course, if further changes are made to the infrastructure, that'll break things, naturally.) Cheers - Al. Nope, not at all. Physical server or virtual server doesn't matter because they appear to the rest of the world as the same. The best practice when spinning up a new server instance is to work with the network team to make sure it gets put in the right network VLAN and have an available static IP/subnet mask/etc so that DHCP is completely out of the picture. It's not really a SOHO/SMB practice as you hint at, but avoiding DHCP is even more important in a large enterprise. Every server that I provisioned (which was virtual after, say, 2013 going forward) got a static IP. If/when DHCP went down, the servers didn't get amnesia and forget who they were or where they were. :P Maybe in highly elastic cloud environments where new instances are spun up and shut down for minutes at a time, there may be more flexibility, but there'd be more software defined networking controllers who at least coordinated how to reach all the new virtual servers/instances/containers. DHCP wouldn't be a point of failure. In my opinion, best practice is that DHCP is really for temporary, ephemeral devices like end user/client devices that come and go. So doing more network design and planning upfront and using static configs eliminates such headaches and outages down the road, as we saw.
[Edit 2 times, last edit by hchc at Aug 3, 2023 8:53:04 PM] |
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markfw
Cruncher Joined: Oct 13, 2016 Post Count: 22 Status: Offline Project Badges: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
When are the stats exports going to be fixed ? So that free-dc.org can read them ?
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TigerLily
Senior Cruncher Joined: May 26, 2023 Post Count: 280 Status: Offline Project Badges: ![]() |
Hi markfw,
Our tech team has been communicating with our contact from the data centre where our servers reside to try and address this issue. They are working to investigate and resolve the problem, but unfortunately I am unable to provide a time frame at this point. |
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markfw
Cruncher Joined: Oct 13, 2016 Post Count: 22 Status: Offline Project Badges: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Thank you very much for the update.
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