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How to Mock Replica Lag Monitoring in Python

Simulates database replica lag with a mock monitor class that generates realistic lag metrics and health statuses.

import time
import random
from datetime import datetime, timedelta

class MockReplicaLagMonitor:
    def __init__(self, replicas=3, base_lag=0.5, jitter=0.2):
        self.replicas = [f"replica-{i}" for i in range(replicas)]
        self.base_lag = base_lag
        self.jitter = jitter
        self.last_write = dateti…

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