[Gluster-users] Atomic file updates

[Jay Vyas]

hola jeff:  im not sure wether your volfile command is complimentary, or
alternative , to my simple and easy "mount with entry-timeout=0" option.

tom : Im not sure , lets wait for jeff, he's the hardcore gluster
consistency expert.

im just a user :)




On Wed, Feb 12, 2014 at 5:23 PM, Tom Munro Glass <tom at tmgcon.com> wrote:

> On 02/13/2014 10:24 AM, Jay Vyas wrote:
> > For vanilla apps that are doing stuff in gluster, you normally do it
> > through a fuse mount.
> >
> > mount -t glusterfs localhost:HadoopVol /mnt/glusterfs
> >
> > But in your case, you might want to do some strict consistency settings
> to
> > make it atomic:
> >
> > mount -t glusterfs localhost:HadoopVol -o
> > entry-timeout=0,attribute-timeout=0/mnt/glusterfs
> >
> > This will make sure that everything is refreshed when you look up files.
> > This strategy has solved our eventual consistency requirements for the
> > hadoop plugin.
> >
> Are you saying that with these mount options I can just write files
> directly without using flock or renaming a temporary file, and that
> other processes trying to read the file will always see a complete and
> consistent view of the file?
>
> Tom
>
>


-- 
Jay Vyas
http://jayunit100.blogspot.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://supercolony.gluster.org/pipermail/gluster-users/attachments/20140212/77854b03/attachment.html>