Troubleshooting Methods: Analyzing 'red' Situations
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What is Troubleshooting Methods: Analyzing 'red' Situations?
The acronym stands for Rate, Errors, and Duration. These are request-scoped, not resource-scoped as the USE method is. Duration is explicitly taken to mean distributions, not averages.
The Rate is the number of requests per second. The Errors is the number of requests that failed. The Duration is the distribution of request durations.
The Red Method is a methodology for analyzing the performance of any system. It directs the construction of a checklist, which for server analysis can be used for quickly identifying resource bottlenecks or errors. It begins by posing questions, and then seeks answers, instead of beginning with given metrics (partial answers) and trying to work backwards.
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Troubleshooting Methods: Analyzing 'red' Situations: common questions
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Is this Troubleshooting Methods: Analyzing 'red' Situations tutorial for beginners?
It is lesson 151 of 170 in the free PostgreSQL roadmap, in stage 12, SQL Query Patterns / Anti-patterns. If you are new to PostgreSQL, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.