[exporter/elasticsearch] Add exponential histogram support #34818
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felixbarny
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Aug 23, 2024
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| if zeroCount := dp.ZeroCount(); zeroCount != 0 { | ||
| counts.AppendEmpty().SetInt(int64(zeroCount)) | ||
| // FIXME: do we really have to take the median of last negative and first positive, instead of using 0? |
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I'd expect us to be able to just use 0. If the offsets if the positive and negative scale are the same, the midpoint is always zero. If the offsets are different, I don't think the midpoint value is meaningful. As the zero count is the count of values that are zero (or within the zero_threshold), I think we should just use 0 as the value.
felixbarny
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exporter/elasticsearchexporter/internal/exphistogram/exphistogram.go
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…metry#34818) **Description:** <Describe what has changed.> <!--Ex. Fixing a bug - Describe the bug and how this fixes the issue. Ex. Adding a feature - Explain what this achieves.--> Convert exponential histograms to T-digest histograms supported by Elasticsearch **Link to tracking Issue:** <Issue number if applicable> Fixes open-telemetry#34813 **Testing:** <Describe what testing was performed and which tests were added.> Unit tests and exporter test **Documentation:** <Describe the documentation added.>
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Description:
Convert exponential histograms to T-digest histograms supported by Elasticsearch
Link to tracking Issue:
Fixes #34813
Testing:
Unit tests and exporter test
Documentation: