Description
Archiving, releasing then migrating leads to a "data version changed during migration":
# cd /mnt/lustre # cp /usr/bin/zip . # lfs getstripe zip zip lmm_stripe_count: 1 lmm_stripe_size: 1048576 lmm_pattern: 1 lmm_layout_gen: 0 lmm_stripe_offset: 1 obdidx objid objid group 1 2 0x2 0 # lfs hsm_archive zip # lfs hsm_release zip # lfs hsm_state zip zip: (0x0000000d) released exists archived, archive_id:1 # lfs getstripe zip zip lmm_stripe_count: 1 lmm_stripe_size: 1048576 lmm_pattern: 80000001 lmm_layout_gen: 1 lmm_stripe_offset: 0 # lfs migrate -o 0 zip /root/lustre-cleanup/lustre/utils/lfs: zip: data version changed during migration error: migrate: migrate stripe file 'zip' failed
I think the file is restored first, then migrated, but its data version is not updated. Which lead to the following questions:
- is it correct to force a restore of an archived file when asking for a migrate operation?
- couldn't the file be restored directly to the proper OST/stripe size, ...?
- although an error is reported, the file is present and complete, so the operation actually completed properly. What if that was another kind of error? Would we get a data corruption?
Attachments
Issue Links
- is related to
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LU-5896 lfs: can't release a migrated file
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- Open
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