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Bug
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Resolution: Fixed
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Major
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Lustre 2.6.0
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3
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13886
Migrating a directory tree using "lfs mv" drops the file attributes stored on both files and directories.
For example, setting the "noatime" attribute on a directory and a file therein, and then migrating the directory to another MDT clears this flag:
[root@sookie-gig tests]# lsattr -a /mnt/testfs/d0.new ---------------- /mnt/testfs/d0.new/. ---------------- /mnt/testfs/d0.new/.. ---------------- /mnt/testfs/d0.new/f0.new [root@sookie-gig tests]# chattr +SAD /mnt/testfs/d0.new /mnt/testfs/d0.new/f0.new [root@sookie-gig tests]# lsattr -a /mnt/testfs/d0.new --SD---A-------- /mnt/testfs/d0.new/. ---------------- /mnt/testfs/d0.new/.. --S----A-------- /mnt/testfs/d0.new/f0.new [root@sookie-gig tests]# lfs mv -M 1 /mnt/testfs/d0.new [root@sookie-gig tests]# lsattr -a /mnt/testfs/d0.new ---------------- /mnt/testfs/d0.new/f0.new ---------------- /mnt/testfs/d0.new/. ---------------- /mnt/testfs/d0.new/..
Fortunately, the IMMUTABLE and APPEND flags cannot be lost in this manner because the MDS blocks files/directories with these attributes from being migrated, so this only affects secondary attributes (noatime, sync write, dirsync).
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- Resolved
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