Small matching metric improvements#10181
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majiru wants to merge 3 commits intotemporalio:mainfrom
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Adds a new gauge metric `pending_polls` that tracks the number of in-flight polls on each physical task queue. The gauge is updated whenever a poll enters or exits PollTask. Resolves OSSM-226 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Adds a `result` tag to the `poll_latency` timer metric with values: - dispatch: task was returned to the poller - timeout: poll expired without receiving a task - failed: an internal error ended the poll Resolves OSSM-227 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Adds a new gauge metric `worker_count` tracking distinct workers attached to a task queue, updated whenever a worker is added or removed from poller history. Only emitted from root partitions to avoid double-counting. Resolves OSSM-228 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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What changed?
Adds two new Gauge metrics, pending_polls and worker_count and a new result tag to the poller_latency metric.
Why?
We've identified that these would help improve visibility for future incidents or debugging.
How did you test it?