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  1. Azure & Cloud

    What a slot swap promises, and what it abandons

    A deployment slot swap warms the new version, moves production traffic to it without dropping requests, and keeps the old version one swap away. It does not protect the work running on the old instances, stop timers and WebJobs running in both slots, carry the identity and some settings across, or undo on the way back what the new version wrote.

    ·12 min read

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  2. Azure & Cloud

    A missing .NET trace does not establish that the operation never ran

    Instrumentation, sampling, export and query scope each limit what a trace search can establish. A local ActivitySource experiment separates business execution from the observations that survived.

    ·4 min read

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  3. Azure & Cloud

    The three decisions you make before moving to Azure

    Most cloud projects do not fail on technology. They fail because building started before three things were decided.

    ·2 min read

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