[LU-15784] md echo should don't panic with remote object

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0
• Severity: 3
• Assignee: Alexey Lyashkov
• Reporter: Alexey Lyashkov

Description

md-echo should don't panic with run on second's MDT.

let's return error in this case.

bug easy replicated with

lctl attach echo_client ec ec_uuid
lctl --device ec setup lustre-MDT0001 mdd
lctl --device ec test_mkdir /tt