[LU-6449] Broadcast HSM remove requests with undetermined archive_id to all registered copytools

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.10.0
• Assignee: Bruno Faccini (Inactive)
• Reporter: Bruno Faccini (Inactive)

Description

The need for this change has been unveiled by configuring RobinHood delayed soft_rm feature, where HSM remove requests are submitted with no/Null archive_id, because RBH current version does not save archive_id infromation in its SOFT_RM DB table.
Since the corresponding files/FIDs have been fully unlinked, their Inodes/xattrs are no longer available in the name-space, and thus CDT is unable to retrieve the archive_id information by himself.
This leads to a situation where, without a copytool being registered to handle all/32 archive_ids, these HSM remove request can not be processed and will leak in archive.

Issue Links

• is related to: LU-6494 hsm: lfs cannot remove an archived file that has been deleted
• is related to: LU-9443 omit changelogs for volatile files