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https://github.com/vercel/workflow.git
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Karthik Kalyan
4a43e39fec
* telemetry: emit client-observed workflow.stream.write span per flush batch Complements the existing workflow.stream.read TTFC span: each flushed batch emits a back-dated CLIENT span covering the app-perceived write latency (buffer dwell + RPC), with buffer_dwell_ms / chunks / bytes attributes so client-side batching cost (flush timer, turbo run-ready barrier) can be told apart from network/server time. Failed flushes keep the batch's original t0 so a retried batch reports its full dwell. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * chore: tighten changeset Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * telemetry: rename flush span to workflow.stream.flush; DEBUG-log world-vercel OTEL load failure - workflow.stream.write is taken by world-vercel's per-request RPC span (#2857, chunk_rtt); the per-batch flush span gets its own name so the two stay distinguishable in trace queries. Attributes move to workflow.stream.flush.{buffer_dwell_ms,chunks,bytes}, operation=flush. - world-vercel's @opentelemetry/api load failure was silently latched as null, which also swallows bundler/resolution failures in apps that DO register a tracer (observed in production: workbench apps emit core spans but none of world-vercel's). Log the reason under DEBUG=workflow:* so the failure mode is diagnosable. - Document workflow.stream.flush in the tracing docs. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * chore: tighten changeset Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
325 B
325 B
@workflow/core, @workflow/world-vercel
| @workflow/core | @workflow/world-vercel |
|---|---|
| patch | patch |
Emit a client-observed workflow.stream.flush span per stream-write batch, with a buffer_dwell_ms attribute separating client-side batching cost from network/server time. Log under DEBUG=workflow:* when @opentelemetry/api fails to load in world-vercel.