I couldn't get a clear answer from online references. Does Promestheus always keep raw metrics in storage in addition to records set up in recording rules configuration containing aggregations? Is there a way to discard raw metrics after evaluation interval? This is especially useful in a master-slave topology where the higher level nodes (master) store only aggregated data after federating metrics from slave nodes. A number of articles mention this but none clarify if and how long raw data is stored in master collected from slaves.
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