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Uber details internal tool that records and replays live production traffic

The tool grew out of earlier internal systems and took years to build, giving outsiders a rare look at how Uber tests software.

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This brief comes from Tech Twitter’s edited headlines. The posts below are the sources grouped with the story; statements in them belong to their authors.

Gergely OroszLead source
From the outside, few people have understood the type of internal tooling Uber has. There's a tool called CAPRI that can capture production traffic, then replay it on-demand. Building this system took years!! (evolved from other internal systems called Deputy + Cerberus)
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How the headline evolved

  1. Uber details internal tool that records and replays live production traffic

  2. Uber built CAPRI, a tool that captures and replays live production traffic

  3. Uber built CAPRI, a tool that captures and replays live production traffic

  4. Uber builds internal tool that captures and replays live production traffic

  5. Uber builds internal tool that captures and replays live production traffic

  6. Uber's internal tool captures and replays live production traffic on demand

  7. Uber's CAPRI captures and replays production traffic on demand

  8. Uber details internal tool that records and replays production traffic

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