[LU-8039] Running lfs hsm commands results in "No data available"

Tue, 19 Apr 2016 04:31:27 +0000

When running multiple lfs hsm commands in parallel, a file becomes inaccessible.

Here is a reproducer:

# cd /lustre
# echo aaa > file1
# cat file1
aaa
# while true; do lfs hsm_archive file1;  lfs hsm_release file1;  lfs hsm_restore file1;  lfs hsm_remove file1; done
# while true; do lfs hsm_archive file1;  lfs hsm_release file1;  lfs hsm_restore file1;  lfs hsm_remove file1; done (run on another terminal)
<wait for a while>
# lfs hsm_state file1
file1: (0x00000005) released exists, archive_id:1
# cat file1
cat: file1: No data available

From the result of lfs hsm_state, it appears that the file data which has not been archived has been released.

Whamcloud Community JIRA

[LU-8039] Running lfs hsm commands results in "No data available"