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Automatic insertion of useful log points in production programs

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It is common for complicated systems which work perfectly in a test deployment to fail horribly in a production one, and a large proportion of the time needed to fix such failures is spent determining which aspects of the production environment were inadequately captured by the test one. Experienced programmers are fully aware of this difficulty, and so the vast majority of realistic systems include some mechanisms to simplify it. In particular, they almost always include some ad-hoc, manually-inserted logging of ``interesting’’ events. In this talklet, I will argue that this kind of logging should instead be systematic and automated, and suggest some (very, very preliminary) ideas for arranging this.

This talk is part of the Computer Laboratory NetOS Group Talklets series.

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