riteshghorse commented on a change in pull request #15657:
URL: https://github.com/apache/beam/pull/15657#discussion_r723505981
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File path: sdks/go/pkg/beam/core/runtime/harness/harness.go
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@@ -273,6 +273,54 @@ func (c *control) getOrCreatePlan(bdID bundleDescriptorID)
(*exec.Plan, error) {
return plan, nil
}
+// Sampler provides methods for implementing state sampling
+// to track execution time metrics.
+type Sampler interface {
+ startSampler()
+ stopSampler()
+ sample()
+}
Review comment:
Yup.
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