src/dazzle_back/metrics/backlog.py

Generated: 2026-03-30T04:38:46.378526+00:00

Commit: 615f1354a103

Language: python

Scope: dazzle_back

Purpose

Backlog tracker for consumer lag measurement.

Tracks the difference between produced and consumed sequence numbers to measure consumer lag and backpressure.

Key Exports

• BacklogStats
• ConsumerBacklog
• BacklogTracker
• current_lag
• update_producer
• update_consumer
• stats
• reset
• to_dict
• update_producer
• update_consumer
• register_consumer
• get
• all_stats
• by_stream
• total_lag
• max_lag
• growth_rate
• to_dict
• reset_all

Dependencies

Imports

• __future__.annotations
• threading
• time
• dataclasses.dataclass
• dataclasses.field
• typing.Any

Event Interactions

None detected.

Invariants and Assumptions

No invariants documented.

Tests

No related tests found.

Notes

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