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RyanGWU82

1,180 karma · joined March 8, 2007

Infrastructure engineering at Render. http://www.ryanpark.org ... or by email, [my first name] at ryanpark.org
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RyanGWU82··on Stripe reportedly makes offer to acquire PayPal
In this case they reported Stripe's annual run rate — a metric that's roughly comparable to annual recurring revenue, but for non-recurring business models.
RyanGWU82··on Cloudflare is experiencing elevated 5xx responses
I'm also seeing a lot of 1016/1018 "Origin DNS errors" across a variety of web services. I saw this on my own company's website first around 21:40 UTC, although it's not bad enough to materially affect our traffic volume.
RyanGWU82··on [dead]
Heroku posted an incident on their status page about 20 minutes ago. https://status.heroku.com/incidents/2539

According to the timeline on their own incident, it took them 71 minutes to notice the issue and acknowledge it publicly.

RyanGWU82··on SVB Hall of Shame
The Prisoners' Dilemma analogy was covered in Ben Thompson's Stratechery article this week: https://stratechery.com/2023/the-death-of-silicon-valley-ban...

He first made this argument in 2017 in an article about Uber: https://stratechery.com/2017/the-uber-dilemma/

RyanGWU82··on When a rewrite isn’t: rebuilding Slack on the desktop
Yep, I misspoke -- I thought the other one had been pointing to the public announcement at https://slackhq.com/introducing-a-more-efficient-slack-deskt....

This is indeed a dupe.

RyanGWU82··on When a rewrite isn’t: rebuilding Slack on the desktop
This is a different article, going into more of the technical details of the desktop update. The other post is for a more general audience.
RyanGWU82··on Ask HN: What's your daily-driver headphone model?
Quick notes on the BBP2's after about a week:

* The sound quality is excellent. Wired or wireless, the sound is sharp and crystal clear. But it's not particularly flat; there's a lot of midrange that makes it sound a little muddy. I've set up a custom configuration for the iTunes equalizer that helps with the (rock) music I listen to: punchy bass, clear treble, but less mud in the middle.

* The noise cancelling isn't bad. It does a great job on public transit but it's not as all-encompassing indoors as the Bose QC35 seemed to be, from the little I've tried them.

* The BB2Ps aren't nearly as ugly as the product photos make them look. They're not particularly brown in real life, just dark.

* They're pretty comfortable although I find it fatiguing to wear them for more than a couple of hours. The new over-ear shape looks like it made a big difference on the comfort level.

* The Bluetooth signal tends to cut out quite a bit from my iMac at home, which is pretty disappointing. It works better from my MacBook Pro at work -- not sure if there's some interference at home or what.

Overall I do like them, but I don't know if I like them enough to justify the $200 I spent. I haven't decided yet whether to keep them long-term. If I don't keep these, I might switch to the Beats Solo3 without ANC, or just bite the bullet and go for the Bose QC35...

RyanGWU82··on Ask HN: What's your daily-driver headphone model?
This was extremely helpful -- thanks so much for that detailed comparison. I just ordered the Backbeat Pro 2's from Amazon. Although it would be nice to have the Bose ANC, that's less important to me than sound quality -- and $349 just feels like too much to spend on headphones. I'll let you know how the 2nd gen looks and feels.
RyanGWU82··on Ask HN: What's your daily-driver headphone model?
How would you compare the Bose QC35 to the Plantronics? I know Marco Arment has fantastic things to say about the Backbeat Pro series, but I've never seen or heard those in real life, or even seen them mentioned in most reviews. I've tried the Bose a couple of times: the ANC is excellent, and I like the sound (but I'm not blown away by it).
RyanGWU82··on Terraform Gotchas and How We Work Around Them
My muscle memory for "terraform apply" was too strong, so I just moved "terraform" out of my path altogether. Now I have a wrapper that invokes it safely (or a Makefile, depending on which project I'm working on).
RyanGWU82··on Now Open – AWS US East (Ohio) Region
It's actually cheaper than data transfer across AZs. Within a region, AWS charges 1 cent per GB in each direction. You pay a cent to send data from one instance and another cent to receive data on another instance. But between Virginia and Ohio, they charge 1 cent to send data (in either direction) but receiving data is free. In the end, it's actually cheaper to balance your servers across one AZ in Virginia and one AZ in Ohio, rather than 2 AZs in the same region.

But it's only a penny, right? How much could it matter? It actually matters a lot. At both my previous and current employers, a surprisingly large portion of our hill comes from data transfer across AZs. All the microservices, all the memcache hits, and all the database replication add up quickly.

RyanGWU82··on Where do DevOps guys hang out?
Yep, the email still goes out every week.
RyanGWU82··on Why Zuckerberg’s Critics Are Wrong
My understanding is that the founding of the Chan Zuckerberg Initiative has no tax implications at all. The only way that tax would be avoided is if the foundation sells some Facebook stock and donates the proceeds to accredited non-profits in the same year. But the exact same deductions would apply if the Chan-Zuckerberg family donated directly.
RyanGWU82··on Ask HN: Any Black Friday deals offered by YC-backed startups?
Automatic is a Y Combinator company and their Internet-connected car gadget is on sale this weekend. https://www.automatic.com/
RyanGWU82··on PostgreSQL Locking Revealed
We've used it occasionally on a ~400GB table and it's worked perfectly for us too. We run it on EC2 i2.8xlarge instances and it finishes in under 2 hours. But it doesn't use very much CPU or I/O, so we could probably run it just as well on a smaller instance like an i2.2xlarge.

One downside is that you need enough free space on your disk to hold the packed copy of the table, so you need to run it before your disk gets too full. The last couple of times we've waited too long, so we've had to move the data to a larger host before we could repack it.

RyanGWU82··on Amazon DynamoDB increased error rates
Things were good for a couple hours, but the problems came back around 11:10 AM PDT. It's now been happening again for an hour.
RyanGWU82··on Summary of the Amazon DynamoDB Service Disruption
It's really easy to miss the indicator "i". I've been doing this for 4 years and it still doesn't catch my eye when scanning the page.
RyanGWU82··on Amazon DynamoDB increased error rates
We saw the problem get better around 7:13 AM PDT, but then it got bad again at 7:42 AM. Fun morning...
RyanGWU82··on Summary of the Amazon DynamoDB Service Disruption
Yes, we are seeing problems that started around 6:08 AM PDT. We contacted AWS Support and they confirmed they're investigating an incident.
RyanGWU82··on Majority of AWS us-east-1 down/having issues, Heroku included
Just spoke to AWS Premium Support around 4:35 AM. They don't have any more information than what's on the status page, basically. I was hoping to get an ETA for a resolution, but no such luck.
RyanGWU82··on Majority of AWS us-east-1 down/having issues, Heroku included
We're seeing the same problems with DynamoDB... it started around 2:20 AM PDT (1 hour ago). We're not having any problems with EC2—what kind of problems are you seeing? I hope it's just affecting the API and not running instances.

Side note: Medium posted an article last week about how most of their data is stored in DynamoDB, so I'm sure the Medium outage is related.

RyanGWU82··on AWS S3 Having Problems Again? (Monday 12PM Pacific)
S3 is already supposed to be AZ-tolerant. In the US Standard region, they say your data is actually replicated across multiple geographic locations in Virginia and the Pacific Northwest. That's probably true—your data may be highly durable—but availability incidents can apparently span both geographic regions.
RyanGWU82··on AWS S3 Having Problems Again? (Monday 12PM Pacific)
... and errors started up again at 1:00 PM.
RyanGWU82··on AWS S3 Having Problems Again? (Monday 12PM Pacific)
S3's uptime is probably an order of magnitude better than I can provide myself. From 2010-2011 I worked with a medium-size MogileFS cluster, with about 160 million files and 50 TB of data, triple-replicated. We had great uptime until we ran out of I/O capacity on the metadata DB. Then we had a week of 10% downtime, while we ordered new database servers from Dell.

As far as I remember, S3's US Standard region hasn't had a serious incident since Fall 2012. That's a pretty great uptime record in general, even though it's terribly frustrating on days like today.

My current company spends a few hundred dollars a month on S3. I certainly couldn't match S3's uptime at that budget. Maybe I could do it at 2-3X the budget, but with that budget it might be easier to mirror my files across multiple S3 regions.

RyanGWU82··on AWS S3 Having Problems Again? (Monday 12PM Pacific)
Looks like it got better around 12:20 PM, about 10 minutes after the incident started. We haven't seen any problems in the last few minutes.
RyanGWU82··on AWS S3 Outage
Yes, I noticed things getting better around 3:30 AM Pacific.
RyanGWU82··on Ask HN: Anyone deployed OpenVPN and wouldn't mind sharing their experience?
I've done it twice, once in 2010 and again in 2012.

At the first company we had been using PPTP and L2TP for remote access but our employees were having tons of problems establishing connections and staying connected. Then we switched to the OpenVPN server built into our Vyatta router, along with the standard OpenVPN client. This required a ton of manual configuration on each client, but the connections were rock solid.

In 2012 I helped my new employer deploy OpenVPN Access Server, the commercial version. This one didn't need the clients to be pre-configured. Instead our employees went to a webpage, entered their LDAP username and password, and then were given a download that would do everything. The automatic configuration worked perfectly on Mac OS, Windows, and iOS. (I don't recall if anyone tried it on Linux or Android, but I never heard any problems about those.)

OpenVPN Access Server is ridiculously under-priced -- it's $10 per concurrent connection. If your usage is typical, where most users only connect occasionally, then you can connect hundreds of employees for under $1000. Even if it was a lot more expensive, my experience was quite positive and I'd still recommend this.

RyanGWU82··on Ask HN: Gender Neutral (or non-brogrammer) hacknight activities
Beer pong may alienate a lot of other people. My office plays a lot of Mario Kart and trivia/card games and those both seem to interest everyone.
RyanGWU82··on Upcoming AWS Security Maintenance
I doubt they have quite that much spare capacity in any AZ. In the past (2012) they seemed to be capacity constrained when a whole AZ went offline. In a situation like that, some customers would move to a different AZ quickly, and others would just wait it out. Spot Instance pricing would also jump quickly, which would free up some capacity when low-budget workloads shut down.
RyanGWU82··on Ask HN: What Companies Outside of MaxCDN Offer CDN Pull Based Configurations?
CloudFlare and Amazon CloudFront are both origin pull CDNs. (They pull content from your origin server as it is requested from users in different locations.) It looks like they should work just fine with WP Rocket. What makes you think they won't?
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