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DESIGN.md

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Design

Threads

The Buildkite ruby collector uses websockets and ActionCable to send and receive data with Buildkite. Execution information starts transmitting as soon as possible, without waiting for the test suite to finish running.

This gem uses 3 ruby threads:

  • main thread: acts as the producer. It collects span data from the test suite and enqueues it into the send queue.
  • write thread: acts as the consumer. Removes data from the send queue and sends it to Buildkite.
  • read thread: receives and processes messages from Buildkite.

Data

Trace data is stored in spans. See Buildkite::TestCollector::Tracer for more information.