Its weird how I saw this headline, thought to myself "Oh good! It's back!" before realizing that I was using HN to see this very headline...
HN is up again
131–140 of 390 posts
Re: HN is up again
#132HN was down because the failover server also failed: https://twitter.com/HNStatus/status/1545409429113229312 Double disk failure is improbable but not impossible. The most impressive thing is that there seems to be no dataloss, almost whatsoever. Whatever the backup system is, it seems rock solid.
If you have an active/passive HA setup and don't test it periodically (by taking the active server offline and switching them afterwards), my guess is that double disk failures will be more common than single disk failures for you.
Still, I see no reason for prioritizing that failure mode on a site like HN.
Re: HN is up again
#133Had to take a bunch of Xanex to get through the data without HN.
Re: HN is up again
#134HN was down because the failover server also failed: https://twitter.com/HNStatus/status/1545409429113229312 Double disk failure is improbable but not impossible. The most impressive thing is that there seems to be no dataloss, almost whatsoever. Whatever the backup system is, it seems rock solid.
CP => !A
[deleted]
Re: HN is up again
#135Earlier quoted context omitted.
> Double disk failure is improbable but not impossible. It's not even improbable if the disks are the same kind purchased at the same time.
Yep: if you buy a pair disks together, there's a fair chance they'll both be from the same manufacturing batch, which correlates with disk defects.
This makes total sense but I've never heard of it. Is there any literature or writing about this phenomenon?
I guess proper redundancy is having different brands of equipment also in some cases.
Re: HN is up again
#136I don't think I had ever fully internalized how often I open this site throughout the day. Finish a task? HN. Got frustrated/stuck on a problem? HN break. Waiting for something to install/upload/compile/etc? HN. Needless to say I opened a new tab, typed "n", and hit enter countless times today before my brain caught up with my muscle memory.
HN is where I get the bulk of my news and information about current thinking. I visit maybe several dozen times a day.
Re: HN is up again
#137Re: HN is up again
#138How many times did people refresh to check this today? I did at least four times. I might have a bit of a problem.
What? I refreshed way more than 4 times before I believed it was offline.
At the early 00's, when Google went offline I wouldn't believe it, and go check my connection (even if I was fetching other sites at the same time). Looks like nowadays HN is in that place.
Re: HN is up again
#139I don't think I had ever fully internalized how often I open this site throughout the day. Finish a task? HN. Got frustrated/stuck on a problem? HN break. Waiting for something to install/upload/compile/etc? HN. Needless to say I opened a new tab, typed "n", and hit enter countless times today before my brain caught up with my muscle memory.
went out of my way to leave lurk mode and log in just so I could say "100% same experience for me"
Re: HN is up again
#140Earlier quoted context omitted.
Yep: if you buy a pair disks together, there's a fair chance they'll both be from the same manufacturing batch, which correlates with disk defects.
This makes total sense but I've never heard of it. Is there any literature or writing about this phenomenon? I guess proper redundancy is having different brands of equipment also in some cases.
I don't know about literature, but in the world of RAID this is a common warning.
Having a RAID5 crash and burn because the backup disk failed during the reconstruction phase after a primary disk failed is a common story.