grosskur

11 ms·

31.
by grosskur 13y ago
Run multiple replicas with synchronous replication. For Postgres see: https://wiki.postgresql.org/wiki/Synchronous_replication This way you should be able to tolerate failure of a single instance without losing data.
32.
by grosskur 13y ago
"it's incredibly painful now to deal with time in Python" I suggest looking into Arrow: http://crsmithdev.com/arrow/ My experience is that Arrow fixes date/time handling for Python the same way Re
33.
by grosskur 13y ago
Packages are great because they simplify automation. Once you've got a package built and uploaded to a repository, you can install it across a large fleet of machines one-line of Chef or Puppet code. There are some pitfalls, however: *
34.
by grosskur 13y ago
Great! My experience has been that packages simplify automation and play nicely with DevOps tools like Puppet and Chef. It's dead simple to write a recipe to install a package, whereas things get complicated quickly when you try to wri
35.
by grosskur 13y ago
This is exactly why I created Package Lab---to make Linux packaging easier for developers and ops folks. Currently in private beta and would love feedback. Please get in touch with me if you're interested (email in profile). https:&#x
36.
by grosskur 13y ago
Another tip: IAM roles for EC2 instances. http://aws.typepad.com/aws/2012/06/iam-roles-for-ec2-instanc... Basically, the apps you run on EC2 often need to access other AWS services. So you need to get AWS cre
37.
by grosskur 13y ago
Really, there's no such thing as "optimal" because no one has a crystal ball. A portfolio of 100% VTI is indeed diverse, tax-efficient, and has low expenses. Personally, I'd add some amount of VXUS (international stocks)
38.
by grosskur 13y ago
What do you think about low force microswitches? Would you consider them for a future model? http://mykeyboard.co.uk/microswitch/
39.
by grosskur 13y ago
Peter Lynch. He managed the Fidelity Magellan Fund from 1977 to 1990 and averaged a 29% annual return over that period. http://en.wikipedia.org/wiki/Peter_Lynch#Fidelity
40.
by grosskur 13y ago
"Designing REST + JSON APIs" by Les Hazlewood is a good starting point: http://www.stormpath.com/blog/designing-rest-json-apis
41.
by grosskur 13y ago
EC2 spot instances can provide significant cost savings if your app can cope with them getting killed unexpectedly. To help decide what to bid, I made a small app that continuously collects and graphs historical spot prices: http:/&#x
42.
by grosskur 13y ago
Nice! I really like postgres-based queues. Another one is https://github.com/ryandotsmith/queue_classic It uses LISTEN/NOTIFY. It might be interesting to compare it to que in the README.
43.
by grosskur 13y ago
Yes, spot instances are significantly cheaper than even reserved instances. For example, a 3-year heavy utilization cc2.8xlarge instance costs $0.49/hr (with $10K up-front!), whereas its costs only $0.27/hr on the spot market (wit
44.
by grosskur 13y ago
One approach is stubbing out the services you don't need. This article by a Heroku engineer describes how to do this at the Rack level: https://brandur.org/service-stubs Another approach is creating a set of shared ser
45.
DevelopHer Hackday(engineering.linkedin.com)
2 points by grosskur 13y ago|1 comments
46.
by grosskur 13y ago
No, overcommit is turned on (overcommit_memory=0, overcommit_ratio=50). Ubuntu 12.04.3 x86_64, kernel 3.8.0-29-generic.
47.
by grosskur 13y ago
I'm also seeing this on a 512MB DigitalOcean server. From previous experience, I'm pretty sure the problem is that when you compile with Go 1.1 your program's VM commit charge is much larger (~500M) than it was with Go 1.0 (~
48.
by grosskur 13y ago
Agreed. The Postgres "with" statement is also a great way to make large queries readable: http://www.postgresql.org/docs/9.2/static/queries-with.html I first saw this demonstrated in Peter van Harde
49.
by grosskur 13y ago
It would be great if your blog had an RSS or Atom feed.
50.
by grosskur 13y ago
False dichotomy---bundling dependencies doesn't preclude integrating well with the host system. See Basho's latest Riak package for Ubuntu 12.04: http://s3.amazonaws.com/downloads.basho.com/riak/1.3/
51.
by grosskur 13y ago
FYI, Camo might be useful for this: https://github.com/atmos/camo There's also a Go (golang) port: https://github.com/cactus/go-camo I'm currently using go-camo in my own feed reader and have experienced some flakiness (images fail to l
52.
by grosskur 13y ago
I recently made an app to graph spot prices: http://ec2price.com/
53.
by grosskur 13y ago
Compute Engine looks promising. It used to require a subscription to Gold support ($400/month) before you could create any VMs, but they removed this restriction last week. It still has very limited quotas, though: Maximum of 8 instances or
54.
by grosskur 13y ago
See OpenRuko: https://github.com/openruko I haven't used it myself, but it seems to be a Heroku clone written in Node.js. There's also CloudFoundry, which used to be quite different but is now adding support for Heroku-style buildpacks in
55.
by grosskur 13y ago
For me the main reason is consistency. I can write apps in Python, Ruby, node, etc. and configure them all the same way. The envdir program (from daemontools) is useful for setting environment variables in a shell-agnostic way, e.g., run yo
56.
by grosskur 13y ago
I've been experimenting with a different metrics toolchain of shh + log-shuttle + l2met recently (also written in Go): https://github.com/freeformz/shh https://github.com/ryandotsmith/log-shuttle https://github.com/ryandotsmith/l2met
57.
by grosskur 13y ago
I agree mutual funds are less tax efficient. However, they have an advantage of trading at NAV, which means you don't pay a bid-ask spread when buying or selling. According to The Bogleheads' Guide to Investing, the January 2001 issue of Th
58.
by grosskur 13y ago
For me, the most interesting part was: "Back in the day, I would just empty out my bank account after each paycheck and distribute it into my investments of choice: Vanguard's S&P 500 index fund, their small-cap value index fund, a bit
59.
by grosskur 13y ago
I'd like to host a static site on S3 with SSL. But AIUI this isn't possible with S3/CloudFront alone because the hostname in the SSL certificate won't match the custom CNAME. What do most folks do in this situation? Put CloudFlare or Fastly
60.
by grosskur 14y ago
Heroku allows specifying the Python version in a file called runtime.txt, which is analogous to requirements.txt: https://devcenter.heroku.com/articles/python-runtimes I think this works well as a convention even if you're not deplo

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