werkshy

11 lat temudiscuss

From the chrome extension github:

  "This is pre-alpha quality software, the result of a three
  day project. It will crash your browser, leak your
  passwords and destroy your home. This is actually my first
  Chrome extension and I am no expert javascript programmer."

YMMV

werkshy

11 lat temudiscuss

We (Harry's) have released a tool called Kontrast: https://github.com/harrystech/kontrast, http://engineering.harrys.com/2014/09/24/kontrast.html

It's written in Ruby but is not really dependent on Rails or anything to run. We use it to compare a list of URLs between the version we are currently testing in CircleCI and our production site. Any differences are highlighted in a nice gallery and we get a message in our Hipchat room.

werkshy

11 lat temudiscuss

I run mine as a NAS, and the performance is pretty terrible. The portability is great though! I'm somewhat nomadic at the moment so it's great to have a 1TB NAS that I can pack in my laptop bag (1TB external 2.5" drive + rpi: minimal weight too)

werkshy

12 lat temudiscuss

  ubuntu@c1-10-1-18-157:~$ sysbench --test=cpu --cpu-max-prime=2000 --num-threads=4 run                                                                           
  sysbench 0.4.12:  multi-threaded system evaluation benchmark                    
                                                                                
  Running the test with following options:                                        
  Number of threads: 4                                                            
                                                                                
  Doing CPU performance benchmark                                                 
                                                                                
  Threads started!                                                                
  Done.                                                                           
                                                                                
  Maximum prime number checked in CPU test: 2000                                  
                                                                                
                                                                                
  Test execution summary:                                                         
      total time:                          6.7674s                                
      total number of events:              10000                                  
      total time taken by event execution: 27.0485                                
      per-request statistics:                                                     
           min:                                  2.69ms                           
           avg:                                  2.70ms                           
           max:                                  7.00ms                           
           approx.  95 percentile:               2.70ms                           
                                                                                
  Threads fairness:                                                               
      events (avg/stddev):           2500.0000/17.36                              
      execution time (avg/stddev):   6.7621/0.00

werkshy

12 lat temudiscuss

Because everything written in Ruby is junk? This project can be used by any system that uses a cron-like syntax for scheduling jobs, regardless of the languages and frameworks that system is built with.

werkshy

12 lat temudiscuss

I don't understand why web professionals are publishing their work in .docx format, whatever the standard of the writing.

werkshy

13 lat temudiscuss

We certainly don't use Heroku for the price. I've got a fair amount of experience running distributed apps on AWS and I have found that Heroku do provide a lot of value-added services on top (from deployment to database provisioning). For us, the best reason to use Heroku is that when AWS has a problem, Heroku can actually do something about it. Try calling AWS support when a whole availability zone just went down!

Of course, we are a Rails shop who have been on Heroku since we launched, so Heroku is really tailor made for us. If you're happy on raw AWS, good for you. Every hour I'm not thinking about AWS is an hour I can be writing a feature for our 10-month-old startup. The extra cost of Heroku is negligible when viewed in that light.

werkshy

13 lat temudiscuss

We find that neither New Relic nor Analytics gives the full picture: some of our pages are heavily cached, others (e.g checkout processing) are computationally expensive, database heavy and communicate with other systems (e.g payment processors) that can be a big bottleneck. Both New Relic and GA tend to just average those together (although with GA you can create new views that focus on specific pages). You are right that 'number of visitors on site' does not reflect our site performance in every respect.

We first conceived of Dynosaur as a plugin-based autoscaler (with GA and New Relic plugins to start with), but we've found the times we really need to scale fast are the times we have a lot of traffic generated from press stories etc (like this from today, if you will excuse the shameless plug: http://dealbook.nytimes.com/2014/01/21/a-start-up-run-by-fri...) and using the analytics live API allows us to react a little quicker than if we waited for New Relic to tell us our response times are getting slow. So far, we're happy enough with just a Google Analytics plugin.

One possible improvement would be to scale differently based on different traffic / performance metrics across the site. I think New Relic or other performance instrumentation would be very useful for that.

werkshy

13 lat temudiscuss

That really depends on your app and your caching strategy. If you are doing something complex or memory intensive (or your app is poorly optimized), or if your users are highly engaged, it could be in the low tens of users! If you are doing a lot of caching you should be able to serve static pages on the order of several hundred or more per dyno.

werkshy

13 lat temudiscuss

Woah! So sorry to be treading on your namespace! I did a google search for the 'Dynosaur' and didn't get any hits if I recall. We will put our heads together and come up for a new name for our project later today.

No offense intended: you picked a cool name!

werkshy

13 lat temudiscuss

We haven't benchmarked against other autoscalers or done any direct comparisons.

Our main motivation was to write something that scaled as we scale manually (i.e. when we get a lot of traffic due to press hits etc, we scale up based on GA realtime data as well as New Relic response times). When we were given access to the GA live API it just seemed like a natural fit.

werkshy

13 lat temudiscuss

Dynosaur author here, if anyone has questions.

werkshy

13 lat temudiscuss

Good point. I am on GSM in the US but also prefer an international phone.

werkshy

13 lat temudiscuss

Yes, but it's a 3 row keyboard. I upgraded from the G1 (5 row qwerty) to the G2 (4 row, numbers-on-the-qwerty-row) and it's next to useless.

As a phone, I need to use the number line a lot. As a computer /terminal, I need to use letters, numbers & symbols a lot. 3 and 4 row keyboards are bad for both of these use cases.

If someone makes a decent, interesting 5-row qwerty phone, I will buy it tomorrow.

werkshy

13 lat temudiscuss

We just spent days moving stuff away from Elasticache due to memcached limitations, and would love to have moved to managed Redis. We're an AWS partner, with the highest level support contract and if we'd known two weeks ago that this was in the pipeline, we would have waited. AWS, why don't you give us any road map for stuff like this?

werkshy

13 lat temudiscuss

Mongo got a lot better about reusing disk space in v2.2, if you are deleting from a collection. Still no compression or document field name optimizations though.

werkshy

13 lat temudiscuss

With Digital Ocean you'd need to install a software firewall on the servers themselves, there is no API-configurable network-level firewall. I used 'ufw' which was quite easy to get started with (on Ubuntu), and replicated my AWS security group config pretty quickly. I added the ufw config to my host setup scripts so it happens automatically.

werkshy

13 lat temudiscuss

Zoneminder grinds my dual-core Atom to a halt. Try 'motion' for a simpler system (well, simple if you like config-file setup) with about 25% of the CPU usage. Plus, the viewing interface is just 'cd /motion; ls *avi' rather than the slow and clunky web interface of ZM.

werkshy

13 lat temudiscuss

EnergyHub : Full Stack Software Engineer - Brooklyn, NY. Full Time.

We're building a platform for controlling residential energy usage (think wifi thermostats, but also all sorts of home automation stuff). We're looking for a smart someone to work on all aspects of our software platform, from the back end, to web and mobile applications, to the tools that we use in development and production environments. We’re a small team, we use Python/Java/Backbone/Mongo/lots of other stuff and we're open to new ideas.

In addition to solving all of the usual software problems (achieving high availability, dealing with lots of data, implementing web services efficiently, choosing the best JS and CSS technologies, etc.), we also deal with real physical devices, so you will be encouraged to learn about boot loaders, Z-Wave, how to conserve the battery of an embedded device, and much more.

We're well funded, have a great workplace environment nestled between artist studios in Brooklyn and I think you'll like the team.

http://www.energyhub.com

Apply here or contact me informally for more info (email in my profile): http://careers.stackoverflow.com/jobs/21403/full-stack-devel...

werkshy

13 lat temudiscuss

I can't even begin to calculate the amount of time I wasted on Eclipse. I hated it. I tried to use eclim, which kinda work, but started crashing vim (infrequently) which is worse than not having anything. At least once every two weeks (for three years) I would get so fed up with how slow it is that I'd spend an hour or two trying to fix it.

It's hours and days wasted, and that's before I consider any difference in productivity while actually using each IDE. If any of this sounds familiar, do spend a couple of weeks in the free version of IDEA. It was night-and-day for me. The worst part will be your muscle memory (e.g. stepping through the debugger).

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Using Asana for Code Review

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