Adds OTelTraceIdRatioBasedSampler #131
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t089
commented
Aug 22, 2024
Package.swift
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| .package(url: "https://github.com/slashmo/swift-w3c-trace-context.git", from: "1.0.0-beta.1"), | ||
| //.package(url: "https://github.com/slashmo/swift-w3c-trace-context.git", from: "1.0.0-beta.1"), | ||
| //.package(name: "swift-w3c-trace-context", path: "../swift-w3c-trace-context"), | ||
| .package(url: "https://github.com/t089/swift-w3c-trace-context.git", branch: "trace-id-bytes"), |
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Please see slashmo/swift-w3c-trace-context#18 for details on this
slashmo
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Sep 14, 2024
Sources/OTel/Tracing/Sampling/OTelTraceIdRatioBasedSampler.swift
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Sources/OTel/Tracing/Sampling/OTelTraceIdRatioBasedSampler.swift
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Tests/OTelTests/Tracing/Sampling/OTelTraceIdRatioBasedSamplerTests.swift
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Tests/OTelTests/Tracing/Sampling/OTelTraceIdRatioBasedSamplerTests.swift
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Sources/OTel/Tracing/Sampling/OTelTraceIdRatioBasedSampler.swift
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Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## main #131 +/- ##
==========================================
+ Coverage 99.00% 99.01% +0.01%
==========================================
Files 65 68 +3
Lines 1800 1831 +31
==========================================
+ Hits 1782 1813 +31
Misses 18 18 ☔ View full report in Codecov by Sentry. |
t089
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This adds a
OTelTraceIdRatioBasedSampler(see Spec).The sampler takes the last 8 bytes of the
TraceIDand interprets them as a singleUInt64value which is then used for the sampling decision. As long as those bytes are randomly distributed, this gives a deterministic, but random sampling decision.