[LU-7463] Change object existence assert to if check

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.8.0
• Affects Version/s: Lustre 2.8.0
• Severity: 3
• Assignee: Di Wang
• Reporter: Di Wang

Description

During double MDTs failover test, I met a few LBUGs in OSD declare functions (especially from OUT handlers) because the object does not exist (most likely due to the failure of the recovery). Let's turn these assert into error check to avoid panic.

Issue Links

• is related to: LU-7455 Tracking tickets to make DNE pass soak-test.