[Gluster-devel] Unify namespace-size convention

[James Porter]

Couldn't you make a ramdisk with a small block size. The only thing I can
see bad with that method would be if you are only using unify on a few
bricks and a machine is powered off or crashes.

On 7/24/07, Amar S. Tumballi <amar at zresearch.com> wrote:
>
> Hi,
>  Sorry for the late reply.
>
>  The size of namespace as it contains entries for each file/directory on
> the storage nodes, is directly dependent on number of files.
>
> Size of namespace = total number of  files *  size of one block in
> filesystem.
>
> so, it would be useful to create a namespace directory (say partition),
> with very less block size.
>
> -amar
>
>
> On 7/24/07, James Porter < jameslporter at gmail.com> wrote:
> >
> > I don't know about number of files but you certainly can limit the size
> > with
> > the min-free-disk option in the rr scheduler. I assume you could also
> > just
> > use ulimit. Anyone else with suggestions / knowledge?
> >
> > On 7/16/07, Sebastien LELIEVRE < slelievre at tbs-internet.com> wrote:
> > >
> > > Hi everyone.
> > >
> > > I just have a little question:
> > >
> > > Would there be a way to define the namespace volume size regards to
> > the
> > > bricks in use?
> > >
> > > Let's say it simply : Is there any rule that would say :
> > >
> > > "I have X bricks of Y Gb-size with Z thousand of files on each,
> > > so I need a namespace volume of *how-to define it* Mb"
> > >
> > > Does anyone have a clue on this ?
> > >
> > > Cheers,
> > >
> > > Sebastien.
> > >
> > >
> > >
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> > >
> > >
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>
>
>
> --
> Amar Tumballi
> http://amar.80x25.org
> [bulde on #gluster/irc.gnu.org]