<ul data-eligibleForWebStory="true"><li>Debugging a distributed system post-split introduces common failures like phantom writes, time travel bugs, cascading failures, silent data killers, and quantum entanglement bugs.</li><li>The article discusses solutions like idempotency keys, vector clocks, circuit breakers, checksum verification, and precise timing recording to address these issues.</li><li>It emphasizes using observability tools like Jaeger, ELK, and Prometheus for monitoring and provides a 3 AM playbook for troubleshooting distributed systems.</li><li>Prevention strategies include designing for failure, testing with Chaos Engineering, versioning contracts, and using feature flags.</li><li>Knowing when to revert to a monolith is recommended if debugging consumes excessive time or for transactions with strict latency requirements.</li><li>Start with basics like distributed tracing, implementing a circuit breaker, and conducting regular failure drills, even without being at Google's scale.</li></ul>

Post-Split Trauma: How to Debug Distributed Systems

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