[LU-5985] LFSCK 5: remove dummy name entry from /REMOTE_PARENT_DIR if the MDT-object and its name entry reside on the same MDT

• Type: Bug
• Resolution: Duplicate
• Priority: Major
• Affects Version/s: Lustre 2.7.0
• Severity: 3
• Assignee: nasf (Inactive)
• Reporter: nasf (Inactive)

Description

This can happen when migrate directory MDT-object_A's metadata from MDT_x to MDT_y: all object_A's children name entries needs to be moved to MDT_y. If some name entry originally referenced a remote MDT-object_B which was linked under "/REMOTE_PARENT_DIR" with a dummy name entry on MDT_y, but after the migration, the MDT-object_B and its new name entry resides on the same MDT_y, then the dummy entry for the MDT-object_B should be removed from "/REMOTE_PARENT_DIR".

The LFSCK should guarantee that related inconsistency can be detected and repaired in spite of whether DEN has handled such case successfully or not.

Issue Links

• is related to: LU-4876 LFSCK remove entry from /REMOTE_PARENT_DIR if MDT-object name reside on the same MDT after migration