[LU-13683] lfs migrate on non-existing file returns exit code 0

• Type: Bug
• Resolution: Fixed
• Priority: Trivial
• Fix Version/s: Lustre 2.14.0
• Affects Version/s: Lustre 2.14.0, Lustre 2.12.5
• Severity: 3
• Assignee: Sebastien Piechurski
• Reporter: Sebastien Piechurski

Description

Since merge of LU-11510, lfs migrate on a non-existing file will give the following error "lfs migrate: can't create composite layout from file /some/path/to/file" and will exit with code 0, potentially leaving a calling script unaware of the error.

 

The non-existing file is caught earlier than before by the call to llapi_layout_get_by_path() in lfs_setstripe_internal(), which does not return error code.

However, it sets errno in case of failure, but this is not used by the caller, which gets out without setting the exit code.

Issue Links

• is related to: LU-18903 interop sanity test_230c: FAIL: mkdir failed under migrating directory
• is related to: LU-11510 preserve PFL/FLR/DoM layout with lfs_migrate