Why it matters

Tenant scaling prevents one bad tenant from taking down the platform. Critical at scale.

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The architecture

Shard by tenant hash.

Isolate hot tenants on dedicated shards.

Autoscale per shard.

Tenant scaling flowShard by tenantconsistent hashIsolate hotdedicated shardAutoscaleper shardConsistent hashing + dedicated shards for whales is the standard SaaS pattern
Tenant scaling flow.
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How it works end to end

Consistent hash sharding.

Move whales to dedicated shard.

Per-shard autoscale.