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Nickolas Littau

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Caught In The AWS Tarpit

Guest post by UpGuard engineer Nickolas Littau

While running a series of unit tests that make API calls to Amazon Web Services (AWS), I noticed something strange: tests were failing unpredictably. Sometimes all the tests would pass, then on the next run, a few would fail, and the time after that, a different set would fail.

The errors I was getting didn’t seem to make any sense:

Filed under: AWS, ruby, engineering