Keeping the Stakes Low while Breaking Production

• forem

  196 21,560 9.8 Ruby

  For empowering community 🌱

  

To insulate from upstream libraries, we often wrap those libraries in our own implementations. This helps with the principle of least exposure; rely on the narrowest interface possible. I wrote the AbExperiment class to be the wrapper around Field Test. With the wrapper, I allowed for the system to set an ENV variable and thus force all requests to use the same experiment. This helped with running local tests.

• flipper

  10 3,555 9.6 Ruby

  🐬 Beautiful, performant feature flags for Ruby. (by flippercloud)

  

The next step came about when I learned more about our use of Flipper; a Ruby gem for dynamically toggling on and off features. I didn’t know when the feature would roll out, but I wanted control over the feature. I also wanted admins of other Forems to have control as well. This was trivial with Flipper. Once I deployed the code, Forem’s got the original behavior unless they turned “flipped” on the feature.

• InfluxDB

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  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• Blazer

  17 4,367 7.4 Ruby

  Business intelligence made simple

We then pasted that into Blazer and started looking at the SQL. As we moved around the massive SQL statement, we saw the culprit. A very narrow range for allowed article’s publication dates.

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