Re:A computer upgrade has shut down BART
by QuercusMax on Friday September 05, 2025 @11:59AM
(#45140049)
Alternatively, get good at doing rolling releases so you don't take down the entire system and have some sort of canarying process.
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Re:A computer upgrade has shut down BART
by johnfn on Friday September 05, 2025 @12:04PM
(#45140117)
I feel like some BARTs moving and some stuck might be a bit of a worse problem.
Re:A computer upgrade has shut down BART
by whycome on Friday September 05, 2025 @12:04PM
(#45140105)
I think the rolling stock may be stationary right now. Updates relying on stationery.
Re:A computer upgrade has shut down BART
by ShakataGaNai on Friday September 05, 2025 @12:23PM
(#45140354)
Train rolling jokes aside, that makes sense... until it doesn't work.
A traffic control system, the thing that makes sure all trains are in known locations, safely spaced, etc.... might be necessarily centralized. There isn't really a "rolling release" you can do for a single system.
Should they have a separate test system for release before "production", sure. Do they? No idea. Is it identical to production? Clearly not. How does the saying go....
> Everybody has a testing environment. Some people are lucky enough enough to have a totally separate environment to run production.