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Type: Task
Resolution: Fixed
Priority: Major - P3
Fix Version/s: 9.0.0-rc1
Affects Version/s: None
Component/s: Sharding, Upgrade/Downgrade
Labels:
- auth-shards-follow-up

Assigned Teams:

Catalog and Routing
Backwards Compatibility:
Fully Compatible
Sprint:
CAR Team 2026-07-20
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

Add testing / checkMetadataConsistency new checks to ensure the authoritative collections (config.shard.catalog.*) do not exist in an 8.X FCV cluster.

depends on

SERVER-96888 Enable feature flag featureFlagSymmetricFCV

Closed

SERVER-119485 Add a persisted phase to setFCV after enabling target FCV features

Closed

SERVER-124946 Create/Drop authoritative indexes and collections on upgrade/downgrade

Closed

is related to

SERVER-130534 Authoritative shard catalog collections should be dropped in the configsvr on FCV downgrade

Closed

related to

SERVER-130706 Ignore AuthoritativeShardCatalogCollectionsPresent in CheckMetadataConsistencyInBackground

Closed

SERVER-130709 CheckMetadataConsistency may flag a AuthoritativeShardCatalogCollectionsPresent false positive with concurrent setFCV

Closed

SERVER-128437 checkMetadataConsistency tests the legacy shard catalog collections do not exist when upgraded

Closed

(2 related to)

Assignee:: Joan Bruguera Micó
Reporter:: Pol Pinol
Participants:: Githook User, Joan Bruguera Micó, Pol Pinol
Votes:: 0 Vote for this issue
Watchers:: 3 Start watching this issue

Created:: Jun 01 2026 02:08:03 PM UTC
Updated:: Jul 14 2026 07:08:19 AM UTC
Resolved:: Jul 07 2026 10:52:36 AM UTC

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PagerDuty