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Type: Bug
Resolution: Unresolved
Priority: Major - P3
Fix Version/s: None
Affects Version/s: 8.0.0, 8.2.0
Component/s: None
Labels:
None

Assigned Teams:

Catalog and Routing
Story Points:
3
CAR Domain/s:

🟥 DDL

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

Scenario:

Shard A is the primay shard for db
Unsharded db.coll has been placed on shard B (via moveCollection)
$out writing to the same collection db.coll creates it on shard A (that is the primary shard) rather than shard B (that is the shard it used to live on).

This ticket is to ensure that $out recreates the unsharded collection on the same shard as it existed before.

related to

SERVER-79718 Remove HostTypeRequirement::kPrimaryShard from $out

Closed

SERVER-87554 Move non-8.0 required work to featureFlagTrackUnshardedCollectionsUponCreation

Closed

SERVER-98504 Remove any usage of trackUnshardedUponCreation feature flag

Closed

Assignee:: Unassigned
Reporter:: Renato Riccio
Participants:: Renato Riccio
Votes:: 0 Vote for this issue
Watchers:: 5 Start watching this issue

Created:: Nov 27 2025 11:25:11 AM UTC
Updated:: Dec 19 2025 11:02:30 AM UTC