feat(llmobs): add experiment multirun concurrency - #9686
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Overall package sizeSelf size: 7.61 MB Dependency sizes| name | version | self size | total size | |------|---------|-----------|------------| | import-in-the-middle | 3.3.3 | 125.43 kB | 441.68 kB | | opentracing | 0.14.7 | 194.81 kB | 194.81 kB | | dc-polyfill | 0.1.11 | 25.74 kB | 25.74 kB |🤖 This report was automatically generated by heaviest-objects-in-the-universe |
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## feat/llmobs-experiment-recorder-stacked #9686 +/- ##
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What does this PR do?
Adds local LLMObs experiment multirun and concurrency support for the Node.js SDK:
runstotracer.llmobs.experiments.experiment({ ... })for local experiments..run({ concurrency })to bound concurrent task/evaluator work within each run.10, matching the Python SDK.result.runs[], withresult.rowsandresult.summaryEvaluationskept as aliases to the first run for compatibility.run_count, UUIDrun_id, andrun_iterationmetadata/tags for backend events and metrics.Motivation
Bring the Node.js experiments API closer to Python SDK behavior and support Omnea-requested local experiment workflows where each dataset row can be evaluated across multiple sequential runs, with bounded parallelism for tasks and evaluators.
Additional Notes
This PR is stacked on
feat/llmobs-experiment-recorder-stacked.run_idgeneration usesnode:crypto.randomUUID()via the experiments util helper to match Python's UUID v4 run IDs.Validation:
./node_modules/.bin/mocha packages/dd-trace/test/llmobs/experiments/experiment.spec.js packages/dd-trace/test/llmobs/experiments/index.spec.js packages/dd-trace/test/llmobs/experiments/util.spec.js— 44 passing./node_modules/.bin/eslint packages/dd-trace/src/llmobs/experiments/experiment.js packages/dd-trace/src/llmobs/experiments/noop.js packages/dd-trace/src/llmobs/experiments/util.js packages/dd-trace/test/llmobs/experiments/experiment.spec.js packages/dd-trace/test/llmobs/experiments/index.spec.jsgit diff --checkEnd-to-end validation example: DataDog/llm-observability#90 adds a runnable Node.js multirun/concurrency multispan example in
experiments/nodejs/examples/04-multirun-concurrency.jsfor reviewers to validate this feature against these SDK changes.