feat(node-sdk): add spanProcessors option #4454
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## main #4454 +/- ##
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+ Coverage 92.37% 92.43% +0.05%
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Files 304 330 +26
Lines 8682 9504 +822
Branches 1831 2026 +195
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+ Hits 8020 8785 +765
- Misses 662 719 +57
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This is now ready for review. As per today's SIG this adds the spanProcessors (array) option to node-sdk |
pichlermarc
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Feb 1, 2024
Since span processors can be chained together, it makes sense to expose this option as an array of span processors. This change also deprecates the `spanProcessor` option in favor of `spanProcessors`.
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Thanks @pichlermarc! |
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Related to #4451, it would be good to add LogProcessors as well. |
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…3270) Currently, `NodeSDK` does not support multiple-span processors and exporters. This functionality [was added](open-telemetry/opentelemetry-js#4454) three weeks ago and will be included in [the following experimental release](open-telemetry/opentelemetry-js#4504). To fix the problem without waiting for the release, I migrated this functionality to lower-level primitives, where we have complete control over the number of exporters.
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…3270) Currently, `NodeSDK` does not support multiple-span processors and exporters. This functionality [was added](open-telemetry/opentelemetry-js#4454) three weeks ago and will be included in [the following experimental release](open-telemetry/opentelemetry-js#4504). To fix the problem without waiting for the release, I migrated this functionality to lower-level primitives, where we have complete control over the number of exporters.
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Which problem is this PR solving?
Since registered span processors are chained together via that active multispanprocessor, it makes sense to expose the option as an array of span processors. As such this change also deprecates the
spanProcessoroption in favor of the new, more flexiblespanProcessorsoption.use case: suppose you are happy with the default batchspan processor, but rather not override any of its hooks and just add a subsequent processor that does something e.g. extracts baggage and adds the baggage entries to spans (side note: an off the shelf baggage extractor span processor might be nice!).
Fixes # (issue)
Short description of the changes
add a spanProcessors config option. convert the original/deprecated spanProcessor config to an array of one if used. we now loop over the spanProcessors and register them to the tracer provider.
n.b. if someone so happens to set both spanProcessor and spanProcessors it will default to using the latter, non deprecated option
Type of change
Please delete options that are not relevant.
How Has This Been Tested?
Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration
Checklist:
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