Gist 180756

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✓ Published0🌍 Public

Last edited Sep 4, 2009

Created on Sep 4, 2009

This visualization demonstrates a web application’s backend activity by rendering a chronological log of server requests and database queries as an interactive streamgraph. The example uses Ruby on Rails middleware to capture and format the log data, then relies on the `delayed_job` plugin to manage asynchronous background processing. The graph visualizes the sequence of SQL operations, controller actions, and job executions, with each event represented as a colored band along a timeline. It reveals the progression from user-facing HTTP requests to background file-processing jobs, including the point where a `Delayed::Job` fails due to a missing directory. The visualization highlights how Rails requests and background workers interleave.

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