[djacobs]

I restarted my modem and router two times before I realized that the network was fine and that it was just Facebook that was down. Props to their ops team for uptime that is so reliable.

[RandallBrown]

I haven't seen Facebook go down in years. I wonder if this is going to be a big deal.

[sroerick]

Facebook went down less than a year ago for a couple hours.

[jmtame]

I'm wondering how much revenue gets lost every minute that Facebook is down. It has to be in the tens of thousands.

Edit: someone wrote this below in the comments, which came to $400 per second of downtime. Ouch.

[semi-extrinsic]

For comparison, the cost of downtime for a single oil rig is on the order of $100 per second. Petrobras, as an example, operates 70 rigs and has a market cap of $125 billion. Facebook has a market cap of $216 billion.

(source for cost: Cormorant Alpha shutdown in 2013)

Edit: misplaced parenthesis => my first number was way off, $70 000 vs $100. Redid analysis, made mental note not to do math before coffee intake.

[timmaxw]

http://www.offshoreenergytoday.com/cormorant-alpha-shutdown-... estimates that the Cormorant Alpha shutdown cost $10,000,000/day, or about $100/second. That figure comes from multiplying the oil production (90,000 barrels/day) by the oil price ($110/barrel). Where did you get the $70,000/second figure from?

[semi-extrinsic]

Gah, misplaced a parenthesis. You are correct. I shouldn't do math before I've had coffee.

[mjrpes]

That seems a tad... high.

$70,000 = $2 trillion a year, assuming 24/365 usage.

Total value of all oil produced in the world (assuming $50/barrel) is roughly $1.4 trillion a year.

[omni]

You're off by an order of magnitude, 70 * 100 = $7,000, not $70,000.

[sliverstorm]

$400 per second somehow seems... smaller than I would have thought. Their opex on a per second basis has got to be orders of magnitude higher than that.

[benhamner]

$400 per second is about $13 billion per year

[obituary_latte]

Restarting your modem is step 1 in troubleshooting internet connectivity problems when Facebook is down?

[IvyMike]

It's almost like he mentioned it because he realized it was silly after the fact and wanted to share that bit of mirth with us.

[obituary_latte]

Or Facebook is just that important. We will never know for sure.

[code_duck]

It wasn't stated that that was the first thing he tried. I've experienced router/modem issues where only certain sites were inaccessible until one or both pieces of equipment were restarted. I'd be interested in knowing exactly what happens to a router's software to make that happen.

[saraid216]

I'd spitball a guess that it has to do with the firewall rules on the modem or router running themselves into a bad state. That would explain why a restart fixes it, since the state would be cleared.

[jorkro]

That can be caused by a variety of issues. From the top of my head, I would investigate broken DNS caches and incorrect MTU settings.