[Bug] Heartbeat Task Slot information is not pulled when MetricBuffer is configured
@Sushisource is already working on this.
Since Sep 8, 2026.
Assessment
This issue has not been assessed yet.
Description
What are you really trying to do?
Use MetricBuffer along with v1.32.0 Python SDK
Describe the bug
When MetricBuffer is configured on the Python SDK Worker, Task Slot information doesn't show up in Temporal Workers UI. When MetricBuffer is not used, Task Slot Information shows up in Temporal Workers UI.
Minimal Reproduction
https://github.com/bmcqueen-tmprl/temporal-py-heartbeat-slot-repro
Environment/Versions
Python 1.32.0 SDK
- Dominant language
- Python
- Stars
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- Avg merge
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- Merged PRs (30d)
- 49
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