Make sure to only generate UUIDs for sharded collections that don't already have one, to make the _configsvrSetFeatureCompatibilityVersion idempotent. (Otherwise, we might change the UUID after it was already generated, and after some shards had already read the UUID value and set the UUID in their storage engines).
on _configsvrSetFeatureCompatibilityVersion=3.6, generate and persist UUIDs for existing sharded collections
- Assignee:
- Esha Maharishi (Inactive)
- Reporter:
- Esha Maharishi (Inactive)
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