RyanGWU82

12 ms·

61.
by RyanGWU82 14y ago
We revise the "right number of instances" every few weeks based on latency and traffic numbers. But sometimes when we release updates, we'll find that we suddenly need a lot more capacity (or a lot less if we improved performance). We have
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by RyanGWU82 14y ago
Our #1 requirement has been to keep up with the growth in traffic on the site. We've been growing so fast that there's literally no way we could have ordered and racked equipment fast enough. We were also a very small team -- a year ago the
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by RyanGWU82 14y ago
Our watchdog process calls the EC2 APIs directly to identify how many instances are running, which ones are spot instances, etc. Boto, the AWS client library for Python, makes that pretty easy. The watchdog isn't very sophisticated -- it ju
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by RyanGWU82 14y ago
Right now we run everything in the US-East region, and we have all our services balanced across 4 availability zones. If there's a problem in a single AZ, it will affect every layer of our system, but only about 25% of the hosts in that lay
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by RyanGWU82 14y ago
I'm Ryan Park -- I'm the Pinterest engineer quoted in the article. I'm happy to answer any questions about our setup. Just to clarify, the auto-scaling was specifically for a pool of web application servers. At the time I gathered the numbe
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by RyanGWU82 14y ago
I think you may be mistaken -- under "Projecting Costs" that page says that it's 10 cents per provisioned IOPS month .
67.
by RyanGWU82 14y ago
I run dozens of memcache and hundreds of app servers in EC2, and we haven't seen any evidence of connection throttling. Isn't this just network latency? If your PHP code can make 300 requests per second, then each request takes about 3.33ms
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by RyanGWU82 14y ago
That's not actually how A records work. Clients are supposed to randomly select one of the A records, although this doesn't always distribute the load as randomly as it should. (My company's site used to have 4 A records for 4 load balancer
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A lesson in compromise from the Pinterest team(ensignau.tumblr.com)
1 points by RyanGWU82 15y ago|0 comments
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by RyanGWU82 15y ago
Isn't that the whole point of the story? Zuck paid income tax on the initial grant's value (which may be par value), and the stock's appreciation will only be taxed at the reduced capital gains rate?
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by RyanGWU82 15y ago
What concerns you about S3?
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by RyanGWU82 15y ago
That's not what I've seen, at least for FileVault 2 under OS X Lion. I'm using a 2010 iMac with a third-party SSD, and a 2011 MacBook Air with Apple's stock SSD. Both computers are blazing fast at disk access, even with full-disk encryption
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by RyanGWU82 15y ago
Nah, this has been in the works for a few months. I deleted 160 million objects in the spring, which was enough for me to get a phone call from an Amazon product manager. He asked if there was anything they could do to help the deletes go s
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by RyanGWU82 15y ago
We've got 160 instances affected, which is obviously going to require a pretty massive amount of work. I'd estimate we'll be spending about 30 hours on this project over the next week. Yes it sucks, but asking you to reboot your servers onc
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by RyanGWU82 15y ago
I brought StartSSL to my last 2 employers for internal sites, like development sites and internal apps, and it's been wonderful. We haven't found any problems with StartSSL certificates in browsers, from IE6 up through the newest browsers.
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by RyanGWU82 15y ago
This isn't an article, it's a press release.
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by RyanGWU82 15y ago
See, I still don't understand how this is dishonest . They didn't try to make "undeletable cookies," they're not using cookies! I understand that to a layperson "cookie" means "anything that identifies me to a web site," but they're wrong,
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by RyanGWU82 15y ago
Well, they said that they "made the following changes" -- one of which is not using eTags. So I guess they stopped that. (That said, they never aggregated this data across multiple websites, so I really don't get what the whole fuss was abo
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by RyanGWU82 15y ago
It drives my boss crazy that the universal icon for Save is a picture of a floppy disk. We haven't been saving documents to floppy since 1993! But it's also scary to be the first one to buck the trend, so our product uses the same floppy di
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by RyanGWU82 15y ago
Are you using software like Nginx or haproxy, or a hardware load balancer? If you're using software, then I recommend using something like Heartbeat to share an IP address between the two. It basically does the same thing that mahadri sugge
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by RyanGWU82 15y ago
My company posted 3 job listings 3 weeks ago -- you can look at my posting history to see the jobs I posted here on HN. So far we've gotten about 120 responses in total. The majority were for the Software Engineer and VP/Engineering positio
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by RyanGWU82 15y ago
Heh, I did the same thing after Startup School 2005. I was in DC but Startup School got me to apply to Stanford for the master's program in CS. Six years later and I've got my masters and I'm having a great time at a Bay Area startup!
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by RyanGWU82 15y ago
The query "is:unread -in:inbox" will find all the unread email that's filtered out of your inbox. It might not answer this question though -- Gmail may still report the total as "hundreds" or "thousands".
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by RyanGWU82 15y ago
I've had a Nightingale CXO for about 5 years and I love it. I went to the store intending to buy an Aeron, but I'm glad I considered some other models that weren't quite as trendy. Wish I had one at work too!
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by RyanGWU82 15y ago
San Mateo, CA PBworks is hiring a Senior Operations Engineer! PBworks is hiring a Senior Operations Engineer who can wear many hats. We're looking for folks who aren't scared of being hands on with everything. Willing to compile a grsecurit
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by RyanGWU82 15y ago
San Mateo, CA PBworks is hiring a Web Software Engineer! We're counting on you to make a big difference in our product. It's not just an opportunity to make an impact at PBworks, it's a responsibility. Millions of people will be using you
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by RyanGWU82 15y ago
San Mateo, CA PBworks is hiring a VP of Engineering! PBworks is looking to hire a world-class VP of Engineering to direct, manage, and grow our engineering team at PBworks and join a great management team. Candidates should have knowledge a
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by RyanGWU82 15y ago
Yes yes yes! This is what drives me CRAZY about the job postings from Y Combinator companies here on Hacker News. I would NEVER apply for a job without knowing what the company does and who is behind it. "Stealth mode" is a lame excuse. We'
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by RyanGWU82 15y ago
It's cheap and easy to use a distributed network of DNS servers with locations around the world. There's much less network latency when the edge locations are closer to the end user. There are dozens of good DNS providers out there. We curr
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by RyanGWU82 15y ago
I think you got it backwards. The trick works when you're ending your trip in a hub -- you take the first leg, but skip the connection. So, for example, say you're trying to fly to Chicago (ORD). The article's point is that it may be cheap

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