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Sharding, replication & partitioningEasySDE-1
Your team wants to shard the main Postgres database because 'it is getting big'. It holds 800 GB and handles 3,000 writes per second. How do you decide whether sharding is really needed?
Think first
Answer out loud as you would in the room — clarify, give numbers, name the trade-off — then compare with the model answer.
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