On 2011-02-28 19:35, Shawn Willden wrote: > On Mon, Feb 28, 2011 at 11:06 AM, David-Sarah Hopwood < > [email protected]> wrote: > >> Rebalancing, i.e. changing the parameters of existing files and putting >> shares in the optimal places, is less automatic than we would like it to >> be. Currently I think the easiest way to do that is to copy a directory >> tree from the grid to a local filesystem and then copy it back (to a new >> directory on the grid), then delete the original tree and allow its shares >> to expire. > > I don't think that will perform rebalancing on immutable files unless you > also change your convergence secret. Without changing the secret, when you > do the upload Tahoe will notice that the files already exist in the grid -- > with the old parameters -- and consider that sufficient.
No, because files with the same contents and convergence secret, but different encoding parameters, do not converge. (The optimization that 'tahoe cp' does for grid-to-grid copies is independent of convergence.) -- David-Sarah Hopwood ⚥ http://davidsarah.livejournal.com
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