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Observability & SRE

Structured logging, metrics, tracing, health checks, and SLO-friendly instrumentation.

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Observability & SRE easy

How to Flush Metrics on Graceful Shutdown in Python

Register an atexit handler to automatically flush collected metrics when a Python process exits gracefully.

atexit metrics graceful-shutdown
Python 
import atexit
import time
import random


class MetricsCollector:
    def __init__(self):
        self._metrics = []
        atexit.register(self.flush)

    def record(self, name, value):
        self._metrics.append((name, value, time.time()))

    def flush(self):
        print(f"Flushing {len(self._metrics)} metri…
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