[Gluster-users] Atomic file updates

Tom Munro Glass tom at tmgcon.com
Wed Feb 12 22:23:06 UTC 2014

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?


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