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[gfarm-discuss:30274] Re: New to Gfarm: limitations?



Hi Osamu, thanks for the response and all of your hard work on this project. A few follow up questions:

Not for now.  Regarding gfarm2fs, the following functionalities
are not implemented;

- uid for another person
- gid
- nlink for directory
- readlink(2), symlink(2), link(2)
- chown(2) to another person (this is available by gfchown)
- statfs(2) (df does not work right now, but will be implemented soon)
- xattr

Is there any type of estimated time frame for chown and df/statfs to be implemented?

Also, what is the difference between gfarm2fs-1.0 and gfarmfs-fuse-2.0?
 
Basically it can be managed by an upper-level management layer
than the Gfarm file system, although we do not have such a system
fow now.

Do you have any examples of existing programs or implementations like this? I am wondering if there is an easy way to implement this as part of our v2 test cluster.

> 5) If anyone has any experience, how does Gfarm compare to some of the other
> distributed filesystems? Lustre lacks true HA (only through shared-storage
> and heartbeat), but GlustreFS and cleversafe look promising. Perhaps someone
> can shed some insight as to how Gfarm compares.

I will be doing some of this research, so will keep you posted as I make comparisons.


Thanks so much,
Jordan