fix(sdk-metrics): merge uncollected delta accumulations #3667
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Codecov Report
Additional details and impacted files@@ Coverage Diff @@
## main #3667 +/- ##
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- Coverage 93.93% 93.71% -0.22%
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Files 256 277 +21
Lines 7152 8451 +1299
Branches 1472 1755 +283
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+ Hits 6718 7920 +1202
- Misses 434 531 +97
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pichlermarc
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Mar 10, 2023
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Which problem is this PR solving?
Fixes #3664
Short description of the changes
When two metric readers are registered and an async instrument is created, two async metric storages are created for each metric reader.
When one metric reader initiates collection on the async instrument, both async metric storages recorded the observed values. However, only one async metric storage that corresponds to the initiating metric reader is collected.
Next, when another metric reader initiates collection, both async metric storages recorded the observed values. But the async metric storage that corresponds to the reader has uncollected active delta accumulations. Those delta accumulations should be merged.
Type of change
How Has This Been Tested?
DeltaMetricProcessor.batchCumulateshould merge uncollected active delta.packages/sdk-metrics/test/regression/two-metric-readers-async-instrument.test.ts.Checklist:
Documentation has been updated