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Type: Improvement
Resolution: Fixed
Priority: Major - P3
Fix Version/s: 8.3.0-rc0
Affects Version/s: 8.0.0
Component/s: None
Labels:
- resharding-improvements
- resharding-performance-improvements

Assigned Teams:

Cluster Scalability
Backwards Compatibility:
Fully Compatible
Linked BF Score:
200
CAR Domain/s:
None

Aha! Reference:
None
Tracking Level:
None
Risk Status:
None
Exec Notes:
None
Goal Name(s):
None
Goal Link:
None

Today resharding/moveCollection/unshardCollection clones the indexes on the primary shard even if it's not the shard owning the collection, the indexes' definition will never get updated since the collection is resident on another shard.
resharding/moveCollection/unshardCollection should not create any index on shards that are not owning the collection.

related to

SERVER-118422 Enable featureFlagReshardingSkipBuildingIndexesIfApplicable by default

Closed

Assignee:: David Chen
Reporter:: Renato Riccio
Participants:: David Chen, Githook User, Renato Riccio
Votes:: 0 Vote for this issue
Watchers:: 9 Start watching this issue

Created:: Mar 12 2025 10:22:38 AM UTC
Updated:: Jan 28 2026 06:59:41 PM UTC
Resolved:: Jan 06 2026 09:32:29 PM UTC

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