[Gluster-devel] mandatory lock

[Raghavendra Gowdappa]

----- Original Message -----
> From: "Harmeet Kalsi" <kharmeet at hotmail.com>
> To: "Gluster-devel at gluster.org" <gluster-devel at gluster.org>
> Sent: Wednesday, January 7, 2015 5:55:43 PM
> Subject: [Gluster-devel] mandatory lock
> 
> Dear All.
> Would it be possible for someone to guide me in the right direction to enable
> the mandatory lock on a volume please.
> At the moment two clients can edit the same file at the same time which is
> causing issues.

I see code related to mandatory locking in posix-locks xlator (pl_writev, pl_truncate etc). To enable it you've to set "option mandatory-locks yes" in posix-locks xlator loaded on bricks (/var/lib/glusterd/vols/<volname>/*.vol). We've no way to set this option through gluster cli. Also, I am not sure to what extent this feature is tested/used till now. You can try it out and please let us know whether it worked for you :).

> Many thanks in advance
> Kind Regards
>  		 	   		  
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