Before Creating the Enhancement Request

• I have confirmed that this should be classified as an enhancement rather than a bug/feature.

Summary

The revive topic process lag metric value is Inaccurate. For each queue, the calculated value is one bigger than the actual.

Motivation

Ensure that the metrics reflect service status accurately.

Describe the Solution You'd Like

Fix the calculation logic.

Describe Alternatives You've Considered

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Additional Context

No response