Why Database Sharding Fails Without a Good Key Strategy

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Why Database Sharding Fails Without a Good Key Strategy

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Sharding is supposed to make databases infinitely scalable, but choosing the wrong shard key can destroy performance. Lucas and Luna dig into a real case: a mid-size SaaS company that sharded their user table by customer ID, only to see one shard handle 90% of the traffic because their biggest client's users logged in at the same time. They walk through how hash-based keys, composite keys, and lookup tables solve this, and why database sharding without a key strategy is just distributed pain. Perfect for engineers and architects wrestling with scale. #DatabaseSharding #ShardKey #Scalability #PostgreSQL #MySQL #DistributedSystems #DatabaseDesign #HashSharding #CompositeKey #LookupTable #ShardAwareRouting #DataArchitecture #SaaS #DatabasePerformance #Engineering #Tech #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo

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