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Failover, migrations and control planes
Keep systems available while regions fail, shards move, schemas change and configuration rolls out to a fleet.
Define write ownership, recovery objectives and split-brain prevention across regions.
Create verifiable recovery points and prove they restore in an isolated environment.
Replicate immutable object generations with checksums, delete markers and fenced failover.
Move key ranges between owners with snapshot catch-up, enforced epochs and directory cutover.
Migrate a live dataset through snapshot backfill, ordered change capture and fenced cutover.
Distribute immutable configuration revisions through canaries and observable rollout waves.
Reconcile desired resources with observed external state using generations, ownership and finalizers.
Enforce tenant isolation across requests, caches, jobs and resource budgets.
Distribute versioned secrets through workload identity, short-lived access and rotation.
Renew and activate endpoint certificates with ownership validation and expiry visibility.
Replicate keys across nodes with tunable quorums so the store stays available when a node dies.