Handling ID Collisions in Distributed Microservices
Hey everyone, I'm currently refactoring a legacy monolith into microservices, and we’ve hit a bit of a snag with our primary keys. In the old system, we just used auto-incrementing integers (good old IDs like 1, 2, 3...), but now that we have multiple nodes writing to different DB shards, we’re terrified of "identity crises" (ID collisions). One of our senior devs suggested moving to GUIDs, but I’m a bit worried about the performance hit and the "ugliness" of the strings during debugging. How do you guys handle ID generation when you can't have a central "coordinator" service? Is the tradeoff worth it, or am I overthinking the complexity of collisions?
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