[Gluster-devel] Re; Load balancing ...

Krishna Srinivas krishna at zresearch.com
Wed Apr 30 09:02:00 UTC 2008


On Wed, Apr 30, 2008 at 1:41 PM, Gordan Bobic <gordan at bobich.net> wrote:
> Martin Fick wrote:
>
>
> >
> > > A better solution would be to maintain a list of
> > > dirty blocks and use it during selfheal.
> > >
> >
> > Agreed, but why not make it infinitely granular and
> > keep a list of dirty file spans instead of blocks? This should be
> extremely space efficient.
> >
>
>  Is this complication and extra effort realy worth the benefit over straight
> rolling hash rsync approach? It seems to me that applying the rsync method
> at read-time would be a fairly minor mod that would solve 99% of the
> problem. No extra book-keeping would be required, only a change from copying
> the whole file to rsyncing the file.

correct, rsync algorithm is the best choice right now.

Krishna

>
>  Gordan
>
>
>
>
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