Gluster users - Jun 2014 - Need clarification regarding the "force" option for snapshot delete.

Hi all,

We had some concern regarding the snapshot delete "force" option,
That is the reason why we thought of getting advice from everyone out here.

Currently when we give "gluster snapshot delete <snapname>", It
gives a notification
saying that "mentioned snapshot will be deleted, Do you still want to
continue (y/n)?".
As soon as he presses "y" it will delete the snapshot.

Our new proposal is, When a user issues snapshot delete command "without
force"
then the user should be given a notification saying to use "force"
option to
delete the snap.
When snapshot delete command is issued with "force" option then the
user should
be given a notification saying "Mentioned snapshot will be deleted, Do you
still
want to continue (y/n)".

The reason we thought of bringing this up is because we have planned to
introduce
a command "gluster snapshot delete all" which deletes all the snapshot
in a system,
and "gluster snapshot delete volume <volname>" which deletes all
the snapshots in
the mentioned volume. If user accidentally issues any one of the above mentioned
command and press "y" then he might lose few or more snapshot present
in volume/system.
(Thinking it will ask for notification for each delete).

Do you think notification would be more than enough, or do we need to introduce
a "force" option ?

------------------------------------------------------------------------------
Current procedure:
------------------

[root at snapshot-24 glusterfs]# gluster snapshot delete snap1
Deleting snap will erase all the information about the snap.
Do you still want to continue? (y/n)


Proposed procedure:
-------------------

[root at snapshot-24 glusterfs]# gluster snapshot delete snap1
Please use the force option to delete the snap.

[root at snapshot-24 glusterfs]# gluster snapshot delete snap1 force
Deleting snap will erase all the information about the snap.
Do you still want to continue? (y/n)
------------------------------------------------------------------------------

We are looking forward for the feedback on this.

Thanks,
Sachin Pandit.

On 06/26/2014 01:58 PM, Sachin Pandit wrote:
> Hi all,
> 
> We had some concern regarding the snapshot delete "force" option,
> That is the reason why we thought of getting advice from everyone out here.
> 
> Currently when we give "gluster snapshot delete
<snapname>", It gives a notification
> saying that "mentioned snapshot will be deleted, Do you still want to
continue (y/n)?".
> As soon as he presses "y" it will delete the snapshot.
> 
> Our new proposal is, When a user issues snapshot delete command
"without force"
> then the user should be given a notification saying to use
"force" option to
> delete the snap.
In that case "gluster snapshot delete <snapname>" becomes
useless apart
from throwing a notification. If we can ensure snapshot delete all works
only with "force" option then we can have gluster snapshot delete
<volname> to work as it is now.

~Atin
> When snapshot delete command is issued with "force" option then
the user should
> be given a notification saying "Mentioned snapshot will be deleted, Do
you still
> want to continue (y/n)".
> 
> The reason we thought of bringing this up is because we have planned to
introduce
> a command "gluster snapshot delete all" which deletes all the
snapshot in a system,
> and "gluster snapshot delete volume <volname>" which
deletes all the snapshots in
> the mentioned volume. If user accidentally issues any one of the above
mentioned
> command and press "y" then he might lose few or more snapshot
present in volume/system.
> (Thinking it will ask for notification for each delete).
> 
> Do you think notification would be more than enough, or do we need to
introduce
> a "force" option ?
> 
>
------------------------------------------------------------------------------
> Current procedure:
> ------------------
> 
> [root at snapshot-24 glusterfs]# gluster snapshot delete snap1
> Deleting snap will erase all the information about the snap.
> Do you still want to continue? (y/n)
> 
> 
> Proposed procedure:
> -------------------
> 
> [root at snapshot-24 glusterfs]# gluster snapshot delete snap1
> Please use the force option to delete the snap.
> 
> [root at snapshot-24 glusterfs]# gluster snapshot delete snap1 force
> Deleting snap will erase all the information about the snap.
> Do you still want to continue? (y/n)
>
------------------------------------------------------------------------------
> 
> We are looking forward for the feedback on this.
> 
> Thanks,
> Sachin Pandit.
> 
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