state_machine

4 ms·

1.
Yields Are Up, Latencies Are Down: Goroutine Scheduling in CockroachDB(cockroachlabs.com)
2 points by state_machine 5mo ago|0 comments
2.
How we rebuilt bulk operations to preserve a history of changes(cockroachlabs.com)
10 points by state_machine 4y ago|0 comments
3.
Real-Time Holiday Consumer Spending Dashboard(analytics.firstdata.com)
1 points by state_machine 8y ago|0 comments
4.
by state_machine 9y ago
FWIW, CockroachDB doesn't claim to beat CAP: https://www.cockroachlabs.com/blog/limits-of-the-cap-theorem
5.
by state_machine 9y ago
Yeah, that's fair. If I have to take LIRR, I'll generally use Atlantic and switch at Jamaica if needed -- anything to avoid Penn.
6.
by state_machine 9y ago
it takes longer to load a train with assigned seating -- that's why say, Amtrak might do it, but commuter rail trains, that at peak run minutes apart and want to minimize dwell-times at highly contended platforms, optimize for loading
7.
by state_machine 9y ago
I've only done much less hellish Grand Central version, and I think Metro North publishes track assignments much earlier. That said though, just imagine how much worse it would be if that mass rush was between platforms, fighting
8.
by state_machine 9y ago
I can see why the MTA wouldn't want you telling people to go to a track before it is actually assigned -- if the train ends up on a different track, now you need to get all those people back up, off that platform an on to the new one,
9.
by state_machine 9y ago
I did not realize the physiological effects would be as severe: > The fraction of carbon dioxide is growing: It just crossed 400 parts per million, and high-end estimates extrapolating from current trends suggest it will hit 1,000 ppm by
10.
by state_machine 9y ago
In case anyone is interested in even more of the technical specifics, the original design RFC might be interesting too: https://github.com/cockroachdb/cockroach/blob/master/docs/RF...
11.
by state_machine 9y ago
One of the challenges for us in implementing something like LISTEN/NOTIFY comes from our distributed nature: since a table is likely broken up across many nodes, you somehow need to aggregate changes from all of them back into a single
12.
by state_machine 9y ago
Yes, change feeds (and triggers) are on the roadmap (though not yet in active development).
13.
by state_machine 9y ago
We're still working on integration with other monitoring systems, but the one we've tested the most and documented is prometheus: https://www.cockroachlabs.com/docs/monitor-cockroachdb-with-... Additionally,
14.
by state_machine 9y ago
Whoops, sorry about that. If you're looking for more on how it works (rocksdb, raft, distributed transactions across multiple raft groups, etc), you might find the design doc interesting: https://github.com/cockroachdb&
15.
by state_machine 9y ago
[cockroachdb employee] Short answer: no. Long answer: at their closest earth and mars are about 54m km apart, at the furthest it's over 400, with an average of around 225m km, so theoretical latency is varies between 4 and 24 minutes.
16.
Wind Energy Without Turbines(fastcoexist.com)
1 points by state_machine 10y ago|0 comments
17.
When Paris Closed a Major Road to Cars, Half Its Traffic Just Disappeared(fastcoexist.com)
21 points by state_machine 10y ago|5 comments
18.
by state_machine 10y ago
The 14 issues tagged 1.7.1: net: retry DNS lookups before failure? io: endless loop in MultiReader in Go 1.7 path/filepath: EvalSymlinks is broken for relative paths on Windows net/http/httputil: Proxy terminates HT
19.
Go 1.7.1 Released(golang.org)
144 points by state_machine 10y ago|27 comments
20.
Are Cities Too Complicated?(citylab.com)
109 points by state_machine 10y ago|69 comments
21.
New data visualisation shows the beating heart of London(360.here.com)
14 points by state_machine 10y ago|2 comments
22.
The morbid and mortal toll of sprawl(cnu.org)
1 points by state_machine 10y ago|0 comments
23.
by state_machine 10y ago
Personally I value (lack of) variance much more than absolute duration: I can easily plan around a either a 19 or 22 minute commute as long as that's consistent -- it's the needing to allow for 20-40 (looking at you, MUNI) that ma
24.
California is about to find out what a truly radical climate policy looks like(vox.com)
8 points by state_machine 10y ago|1 comments
25.
New Yorkers Will Pay $56 a Month to Trim a Minute Off Their Commute(fivethirtyeight.com)
13 points by state_machine 10y ago|3 comments
26.
NHTSA and FMCSA Propose Speed Limiters(ohsonline.com)
2 points by state_machine 10y ago|0 comments
27.
Dubai's Hyperloop Dreams Are Shockingly Sensible(citylab.com)
2 points by state_machine 10y ago|0 comments
28.
User Studies: Schools Add Washing Machines, See Attendance Improve(citylab.com)
1 points by state_machine 10y ago|0 comments
29.
The Go Gopher – A Character Study [Renee French at GopherCon 2016](youtube.com)
1 points by state_machine 10y ago|0 comments
30.
How Marconi Gave Us the Wireless World(thedailybeast.com)
1 points by state_machine 10y ago|0 comments

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