[LU-15009] precreate should cleanup orphans upon error

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.12.9, Lustre 2.15.0
• Severity: 3
• Assignee: Lai Siyao
• Reporter: Lai Siyao

Description

Sometimes OST object precreate succeeds, but the reply get lost or timed out, in this case MDT doesn't update the known last_id, and just retries. And then subsequent precreate will fail because the last_id known on MDT is less than that on OST. Instead, upon each failure, it should restart as a reconnect and cleanup orphans first, and then continue subsequent precreate.

Issue Links

• is related to: LU-5648 corrupt files contain extra data