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Daniel Roca
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Ask me anything.....
Ask me anything.....

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Man -- $10/mo. for Google Music, YouTube Music, and ad-free background-enabled YouTube playing is a pretty insane value.

And that's to say nothing of the $15/mo. six-person family plan still supposed to launch sometime this year.

At the risk of sounding cliche, I think Google just changed the game. Not sure how other music services can even compete with this.
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Google published a paper today about the evolution of our networking infrastructure over the past decade. I've gotten to be quite intimate with these systems, thanks to spending much of that time working on our search and storage infrastructure, and the differences are profound, to say the least.

The article quotes +Amin Vahdat as describing what life was like in the earlier era: "there were painful tradeoffs with careful data locality and placement of servers connected to the same top of rack switch versus correlated failures caused by a single switch failure." I cannot begin to describe the pain in the ass that this was: our high-capacity search stack (the part I was responsible for) was by far the most aggressive user of the network, and each cluster's deployment had to be carefully planned on a per-rack basis, to manage our use of bandwidth within and across racks, and to optimize for survivability in case a single rack switch failed.

To give you a sense of the PITA: (this will make sense only to computer scientists) I wrote our standard implementation of simulated annealing... because I needed it for the software that would figure out which tasks to put on which machines.

And even with those amazing systems, we could knock clusters over in a moment. To do a full restart of a search cluster (reading the index from in-datacenter storage from scratch) in less than 48 hours required shutting down all other jobs in the datacenter, because it would use up all of the internal bandwidth. 

If you ever wondered why search over giant corpora is a hard business...

Cross-datacenter networking remains a hard problem, even with these advances, because while long-haul bandwidth has grown tremendously over the years, storage capacity has grown even faster. This is why a good mental analogue for the design of planet-scale storage systems is freight logistics: even with 747's crossing the globe, warehouses are still much bigger. 

I obviously can't tell all the stories, but these papers are a remarkable chance to see what the cutting edge of networking infrastructure actually looks like. Those who are interested in such matters, enjoy!

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Looking for a router that’s simple, fast and really, really ridiculously good looking? Meet #OnHub. google.com/onhub
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We are launching another way to use Hangouts today.  From our new site you'll be able to take advantage of the best of Hangouts in the browser, along with an inspiring image to get you through the day. Check it out and let us know what you think.

https://hangouts.google.com 
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New app launcher in Chrome (its experimental,you can enable this in chrome://flags)
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Google's Now on Tap is a killer feature that just made Android phones smarter and more productive than any other phone on the planet. I only hope that Google has patented this incredible innovation cause it makes every other phone look just plain dumb.

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