[Bugs] [Bug 1225546] Pass slave volume in geo-rep as read-only

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1225546

Patrick Ladd <pladd at redhat.com> changed:

           What    |Removed                     |Added
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                 CC|                            |pladd at redhat.com



--- Comment #1 from Patrick Ladd <pladd at redhat.com> ---
I have a customer that had end users mount the slave and make modifications to
it.  Any write activity to the slave, as noted in the comments above, causes
long term problems for geo-replication that may not be recoverable without a
complete rebuild of the slave.

After some discussion with gluster engineers, it appears that gluster geo-rep
itself mounts the slave volume to operate on it.  Therefore, implementation for
this would have to have some way to restrict non-geo rep mounts to read only
while still allowing the geo-rep process to mount rw and operate on the slave. 
Maybe a "super secret" mount option that geo-rep uses to distinguish itself? 
(Clearly being an open source project it won't really be secret but at least
someone would have to consciously use it and accept the consequences)

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