Fix incorrect aggregation; Prometheus exporter behavior #903
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added 7 commits
July 3, 2020 10:14
jmacd
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Aneurysm9,
evantorrie,
lizthegrey,
MrAlias and
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lizthegrey
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Jul 6, 2020
added 3 commits
July 6, 2020 08:33
lizthegrey
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Jul 6, 2020
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Done
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cbandy
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Jul 6, 2020
MrAlias
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Jul 7, 2020
Co-authored-by: Tyler Yahn <[email protected]>
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There was a bug in
FinishCollection()that would double-apply stale updates for instruments that had not been modified in the most recent collection interval. This corrects the incorrect aggregation.This adds further correctness and testing for Prometheus. The basic processor supports a new
Memoryoption that says whether to remember and report metric instruments and label sets that were not modified in the most recent collection interval. TheTestProcessortest is refactored to reduce indentation level. New tests are added for the delta and cumulative case, where a stateful aggregator may be called for and the no-memory configuration still suppresses reporting for unmodified data.Resolves #887.