[Bugs] [Bug 1283509] [WORM] Rename operation succeeds on a WORM enabled volume after one brick is added

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1283509



--- Comment #6 from Saravanakumar <sarumuga at redhat.com> ---
RCA:

Here, a new brick is added and then, rebalance process is carried out in the
volume.

Now, the files present in the new brick may have different hash/cache.

When rename is carried out(for the files present in new brick), it is
combination of LINK(with new name) and UNLINK(original file). (Note, this is
applicable only if it is a Special file).

In current worm translator:
1. LINK operation is NOT implemented in worm, so it ends up with default LINK
operation.
so, LINK file will be created.

2. UNLINK will fail as it is implemented as ro_unlink.

  So, it ends up with both original file and new(renamed) file.

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