author Jake Morrison

When running your app in production, you can improve performance by serving static assets such as images, CSS and JS from a content delivery network (CDN). The CDN caches your content in servers close to your customers, improving network latency.

Phoenix is fast, but the more requests handled by the …

author Jake Morrison

A prospect recently asked me what the advantages are of Elixir over Golang.

The simple answer is productivity. You get the best of both worlds: the productivity of a high level language with the scaling power of the mature Erlang platform. For financial and health care applications, there is also …

author Jake Morrison

Whenever we try to squeeze the last bit of utilization out of a system, there is a danger that it will have a big negative impact on the user experience. A great example of this is overbooking in the airline industry. Usually a bad customer experience does not involve getting …

author Jake Morrison

Someone asked this question on the Elixir Forum. Following is my answer:

When I first saw Elixir, we were developing websites (e-commerce, CRUD, etc) with Ruby on Rails, Python, and PHP.

We were using Erlang for the “tricky bits”, e.g. IoT and real time web, and liked it a …

author Jake Morrison

When deploying applications, we we usually have the same basic architecture in different environments (dev, test, prod), but settings differ. Some settings are common to all the machines in the environment, e.g. the db server connection string. We need to vary the size of instances depending on the environment …

author Jake Morrison

In the recent HackerRank developer survey, we can see "Which languages do employers look for by industry?" and "Which languages are developers planning to learn next?" In terms of popularity, there is a definite swing to JavaScript and Python. In terms of mind share with language enthusiasts, not so much …

author Jake Morrison

There is a saying that frustration is an occupational hazard of being a user experience designer (or an excessively logical engineer). Once you start designing processes, you see process problems everywhere, whether or not you want to. As an American living in Taiwan, I am used to being the weird …

author Jake Morrison

Years ago we were building an embedded vehicle tracker for commercial vehicles. The hardware used an ARM7 CPU, GPS and GPRS modem, running uClinux.

We ran into a tough bug in the initial application startup process. The program that read from the GPS and sent location updates to the network …

author Jake Morrison

We have been working on a project migrating a big Rails app from physical hardware to AWS, and I have been doing a lot of automation work.

It strikes me how we are doing the same thing over and over with different tools: reading variables, templating files and running semi-declarative …