[LU-5896] lfs: can't release a migrated file

• Type: Bug
• Resolution: Unresolved
• Priority: Major
• Affects Version/s: Upstream
• Labels: CEA patch
• Severity: 3
• Assignee: Core Lustre Triage
• Reporter: Frank Zago (Inactive)

Description

After a file has been archived and migrated, it's not possible to release it.

# dd if=/dev/urandom of=rand1 bs=4096 count=1024
...
# lfs hsm_archive rand1
# lfs migrate -o 0 -S 65536 rand1
# lfs hsm_release rand1
Cannot send HSM request (use of rand1): Device or resource busy

The file content is still accessible, and its hsm state is correct.

Issue Links

• is related to: LU-13048 Non-blocking migrate: Unable to release file from disk (Cannot send HSM request)
• is related to: LU-5895 lfs: data version changed during migration
• is related to: LU-19543 "lfs migrate" set HSM dirty flag for an empty file