Answer
Use additive schema changes, background migrations, versioned schemas, and applications that accept both old and new fields until migration completes.
Quick Answer
Schema evolution in long-lived clusters: use a schemaVersion field in documents, handle multiple versions in application code, migrate lazily (upgrade on read/write), or run batch migration scripts during maintenance windows. Use JSON Schema validation with mode:"warn" during evolution (logs violations without rejecting). Keep old field names during transition. Communicate schema changes across all teams consuming the collection.
S
SugharaIQ Editorial Team
Verified Answer
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Source: SugharaIQ