[tahoe-dev] Doubts about time taken to upload a file

David-Sarah Hopwood david-sarah at jacaranda.org
Mon Jan 3 23:07:09 UTC 2011

On 2011-01-03 14:04, Shawn Willden wrote:
> On Mon, Jan 3, 2011 at 4:47 AM, sreenivasulu velpula <v.sreenu at gmail.com>wrote:
>> Can any one tell why is there a big difference compared to the initial
>> upload time and  remaining upload times?
> You didn't say whether you uploaded the file as mutable.  If not, then the
> reason is very simple:  Tahoe didn't actually have to upload the file the
> other 11 times.  It noticed the file was already stored in the grid and so
> didn't upload it again.
> If you used the "tahoe backup" command to upload it, then it was uploaded as
> an immutable file.

Yes, the same is true of other tahoe commands that upload files, except for
'tahoe put' with the --mutable option. Similarly, the SFTP frontend always
writes immutable files, and the WUI uploads files as immutable unless the
"Mutable?" checkbox is ticked. By default, only directories are stored in
mutable files.

David-Sarah Hopwood  ⚥  http://davidsarah.livejournal.com

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