error while doing tahoe backup

[freelab xavier]

1
yes there was an helper working

this is necessary in our design
as the nodes are connected by low speed adsl and the helper is on a high
speed internet connection.


actually it was not possible to backup more that 2-5 gByte of data at same
time. directly on the global network
we always go to a kind of error or infinite loop.



2
 we want to backup at least 100 GByte of existing data per node plus daily
history
and i never got anything working fine


i managed to make a workaround
this is to make a tahoe backup on two nodes on a local network with one
local introducer.
that way the shares are create and the backup folder is filled with the
filestructure
then to change configuration of the nodes with the global introducer
then to repair the folder so that the shares get a better repartition on
the network


that way i can manage to get the first sync to be done fast
and then the daily update with 'tahoe backup' can be done easily


the two nodes can be in two machines or on the same machine


this is mainly to circumvent the fact that file structure is only created
at the end of the "tahoe backup" and not file by file
like a more common "rsync".
tested rsync over tahoe/sshfs and results ware very bad. after hours rsync
was still creating the folders with no file uploaded





cordialement,

xavier lebrun



2014-07-29 15:03 GMT+02:00 Daira Hopwood <daira at jacaranda.org>:

> On 11/07/14 15:32, freelab xavier wrote:
> > the error messages are not that clear
>
> Yes, you're right. Sorry about that.
>
> > what shall I understand from those errors ?
>
> The storage server reported an exception that appears to be a bug in code
> related to
> the upload helper. I haven't seen this particular error before. Is a
> helper enabled?
>
> In any case, I have filed this as
> <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/2267>
>
> [...]
> >   File
> \"/usr/lib/pymodules/python2.7/allmydata/immutable/offloaded.py\", line
> 203, in
> > remote_upload
> >     self._reader.add_reader(reader)
> > exceptions.AttributeError: 'CHKUploadHelper' object has no attribute
> '_reader'
> > ]'>
> > "
>
> --
> Daira Hopwood ⚥
>
>
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