Please upgrade to the current version of duplicity.  This will assure that
any bugs fixed since your release are available and may fix your issue.

There are three options:


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   - Daily duplicity builds -
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On Thu, Oct 26, 2017 at 11:51 PM, Bug Watch Updater <
1278...@bugs.launchpad.net> wrote:

> Launchpad has imported 8 comments from the remote bug at
> https://bugzilla.redhat.com/show_bug.cgi?id=1108947.
>
> If you reply to an imported comment from within Launchpad, your comment
> will be sent to the remote bug automatically. Read more about
> Launchpad's inter-bugtracker facilities at
> https://help.launchpad.net/InterBugTracking.
>
> ------------------------------------------------------------------------
> On 2014-06-12T23:55:15+00:00 Eric wrote:
>
> Description of problem: When using Duplicity I receive the error
> "BackendException: No connection to backend" when attempting to backup
> to Amazon S3.
>
>
> Version-Release number of selected component (if applicable):
> 0.6.24-2.fc20
>
> How reproducible: Always
>
>
> Steps to Reproduce:
> 1. Attempt to backup using Deja-Dup to Amazon S3
> 2.
> 3.
>
> Actual results:
> BackendException: No connection to backend
>
> Expected results:
> Backup occurs.
>
> Additional info:
>
> Reply at: https://bugs.launchpad.net/duplicity/+bug/1278529/comments/28
>
> ------------------------------------------------------------------------
> On 2014-07-01T01:42:34+00:00 Dave wrote:
>
> On F19 I experienced the same behavior.  I haven't tested exhaustively,
> but I believe I have it working by *both*:
>
> 1) creating ~/.boto per
> http://boto.readthedocs.org/en/latest/getting_started.html
>
> 2) manually creating the buckets I wanted to use for the backups
>
> Reply at: https://bugs.launchpad.net/duplicity/+bug/1278529/comments/29
>
> ------------------------------------------------------------------------
> On 2014-07-04T15:35:04+00:00 David wrote:
>
> Experiencing the same issue here
>
> F19 x64 deja-dup-26.0-1.fc19.x86_64
>
> Dave Allan's workaround is functional; to findout the correct bucket
> it's trying to use however run:
>
> DEJA_DUP_DEBUG=1 deja-dup --backup
>
> Pay attention to the
>
> DUPLICITY: . Args: /usr/bin/duplicity collection-status line,
>
> --s3-use-new-style s3+http://deja-dup-auto-XXXXXXXXXXXX/YOUR_FOLDER
>
>
> DUPLICITY: INFO 1
> DUPLICITY: . Backend error detail: Traceback (most recent call last):
> DUPLICITY: .   File "/usr/bin/duplicity", line 1502, in <module>
> DUPLICITY: .     with_tempdir(main)
> DUPLICITY: .   File "/usr/bin/duplicity", line 1496, in with_tempdir
> DUPLICITY: .     fn()
> DUPLICITY: .   File "/usr/bin/duplicity", line 1345, in main
> DUPLICITY: .     do_backup(action)
> DUPLICITY: .   File "/usr/bin/duplicity", line 1374, in do_backup
> DUPLICITY: .     sync_archive(decrypt)
> DUPLICITY: .   File "/usr/bin/duplicity", line 1104, in sync_archive
> DUPLICITY: .     remlist = globals.backend.list()
> DUPLICITY: .   File "/usr/lib64/python2.7/site-
> packages/duplicity/backend.py", line 429, in list
> DUPLICITY: .     return map(tobytes, self._list())
> DUPLICITY: .   File "/usr/lib64/python2.7/site-
> packages/duplicity/backends/_boto_single.py", line 297, in _list
> DUPLICITY: .     raise BackendException("No connection to backend")
> DUPLICITY: . BackendException: No connection to backend
> DUPLICITY: .
>
> DUPLICITY: ERROR 23 BackendException
> DUPLICITY: . BackendException: No connection to backend
>
>
> 1) The error is miss leading the connection to s3 appears fine; this is
> instead the absense of a bucket being present (additional checking
> required).
> 2) deja _used_ to auto create buckets; but no longer does so (regression?)
> 3) From the gui you may specify the folder but not the bucket compounding
> the issue.
>
> Reply at: https://bugs.launchpad.net/duplicity/+bug/1278529/comments/31
>
> ------------------------------------------------------------------------
> On 2014-07-04T15:59:09+00:00 David wrote:
>
> ok spoke too soon now seeing:
>
>
> DUPLICITY: WARNING 1
> DUPLICITY: . Upload 's3+http://deja-dup-auto-XXXXXXXXXX/YYYYYYYYYY/
> duplicity-full.20140704T155414Z.vol1.difftar.gpg' failed (attempt #2,
> reason: error: [Errno 104] Connection reset by peer)
>
> DUPLICITY: DEBUG 1
> DUPLICITY: . Backtrace of previous error: Traceback (innermost last):
> DUPLICITY: .   File "/usr/lib64/python2.7/site-
> packages/duplicity/backends/_boto_single.py", line 248, in put
> DUPLICITY: .     self.upload(source_path.name, key, headers)
> DUPLICITY: .   File "/usr/lib64/python2.7/site-
> packages/duplicity/backends/_boto_single.py", line 365, in upload
> DUPLICITY: .     num_cb=(max(2, 8 * globals.volsize / (1024 * 1024)))
> DUPLICITY: .   File "/usr/lib/python2.7/site-packages/boto/s3/key.py",
> line 1315, in set_contents_from_filename
> DUPLICITY: .     encrypt_key=encrypt_key)
> DUPLICITY: .   File "/usr/lib/python2.7/site-packages/boto/s3/key.py",
> line 1246, in set_contents_from_file
> DUPLICITY: .     chunked_transfer=chunked_transfer, size=size)
> DUPLICITY: .   File "/usr/lib/python2.7/site-packages/boto/s3/key.py",
> line 725, in send_file
> DUPLICITY: .     chunked_transfer=chunked_transfer, size=size)
> DUPLICITY: .   File "/usr/lib/python2.7/site-packages/boto/s3/key.py",
> line 914, in _send_file_internal
> DUPLICITY: .     query_args=query_args
> DUPLICITY: .   File "/usr/lib/python2.7/site-packages/boto/s3/connection.py",
> line 633, in make_request
> DUPLICITY: .     retry_handler=retry_handler
> DUPLICITY: .   File "/usr/lib/python2.7/site-packages/boto/connection.py",
> line 1046, in make_request
> DUPLICITY: .     retry_handler=retry_handler)
> DUPLICITY: .   File "/usr/lib/python2.7/site-packages/boto/connection.py",
> line 919, in _mexe
> DUPLICITY: .     request.body, request.headers)
> DUPLICITY: .   File "/usr/lib/python2.7/site-packages/boto/s3/key.py",
> line 815, in sender
> DUPLICITY: .     http_conn.send(chunk)
> DUPLICITY: .   File "/usr/lib64/python2.7/httplib.py", line 805, in send
> DUPLICITY: .     self.sock.sendall(data)
> DUPLICITY: .   File "/usr/lib64/python2.7/ssl.py", line 229, in sendall
> DUPLICITY: .     v = self.send(data[count:])
> DUPLICITY: .   File "/usr/lib64/python2.7/ssl.py", line 198, in send
> DUPLICITY: .     v = self._sslobj.write(data)
> DUPLICITY: .  error: [Errno 104] Connection reset by peer
> DUPLICITY: .
>
> due to the url s3+http whilst attempting SSL write?
>
> Reply at: https://bugs.launchpad.net/duplicity/+bug/1278529/comments/32
>
> ------------------------------------------------------------------------
> On 2015-02-26T20:53:38+00:00 Fedora wrote:
>
> This package has changed ownership in the Fedora Package Database.
> Reassigning to the new owner of this component.
>
> Reply at: https://bugs.launchpad.net/duplicity/+bug/1278529/comments/42
>
> ------------------------------------------------------------------------
> On 2015-05-11T21:13:03+00:00 Michael wrote:
>
> According to the Launchpad bug this is fixed in 0.7.01, which is in
> rawhide but not F21 or F22. A backport or version update would be dandy.
>
> Reply at: https://bugs.launchpad.net/duplicity/+bug/1278529/comments/44
>
> ------------------------------------------------------------------------
> On 2015-05-29T12:06:05+00:00 Fedora wrote:
>
> This message is a reminder that Fedora 20 is nearing its end of life.
> Approximately 4 (four) weeks from now Fedora will stop maintaining
> and issuing updates for Fedora 20. It is Fedora's policy to close all
> bug reports from releases that are no longer maintained. At that time
> this bug will be closed as EOL if it remains open with a Fedora  'version'
> of '20'.
>
> Package Maintainer: If you wish for this bug to remain open because you
> plan to fix it in a currently maintained version, simply change the
> 'version'
> to a later Fedora version.
>
> Thank you for reporting this issue and we are sorry that we were not
> able to fix it before Fedora 20 is end of life. If you would still like
> to see this bug fixed and are able to reproduce it against a later version
> of Fedora, you are encouraged  change the 'version' to a later Fedora
> version prior this bug is closed as described in the policy above.
>
> Although we aim to fix as many bugs as possible during every release's
> lifetime, sometimes those efforts are overtaken by events. Often a
> more recent Fedora release includes newer upstream software that fixes
> bugs or makes them obsolete.
>
> Reply at: https://bugs.launchpad.net/duplicity/+bug/1278529/comments/45
>
> ------------------------------------------------------------------------
> On 2015-06-29T21:05:54+00:00 Fedora wrote:
>
> Fedora 20 changed to end-of-life (EOL) status on 2015-06-23. Fedora 20 is
> no longer maintained, which means that it will not receive any further
> security or bug fix updates. As a result we are closing this bug.
>
> If you can reproduce this bug against a currently maintained version of
> Fedora please feel free to reopen this bug against that version. If you
> are unable to reopen this bug, please file a new report against the
> current release. If you experience problems, please add a comment to this
> bug.
>
> Thank you for reporting this bug and we are sorry it could not be fixed.
>
> Reply at: https://bugs.launchpad.net/duplicity/+bug/1278529/comments/46
>
>
> ** Changed in: fedora
>        Status: Unknown => Won't Fix
>
> ** Changed in: fedora
>    Importance: Unknown => Undecided
>
> --
> You received this bug notification because you are subscribed to
> Duplicity.
> https://bugs.launchpad.net/bugs/1278529
>
> Title:
>   Using S3, "BackendException: No connection to backend"
>
> Status in Duplicity:
>   Fix Released
> Status in python-boto package in Ubuntu:
>   Confirmed
> Status in Fedora:
>   Won't Fix
>
> Bug description:
>   Trying to backup on S3 traces back:
>
>   /home/ubuntu# duplicity /tmp/pippo/ s3+http://s3backupvdstmpmongodumpxxx
> -v9
>   Using archive dir: /root/.cache/duplicity/b9fbae4eed85b4af0e18b84be3a2e7
> ce
>   Using backup name: b9fbae4eed85b4af0e18b84be3a2e7ce
>   Import of duplicity.backends.swiftbackend Succeeded
>   Import of duplicity.backends.gdocsbackend Succeeded
>   Import of duplicity.backends.botobackend Succeeded
>   Import of duplicity.backends.ftpbackend Succeeded
>   Import of duplicity.backends.hsibackend Succeeded
>   Import of duplicity.backends.localbackend Succeeded
>   Import of duplicity.backends.ftpsbackend Succeeded
>   Import of duplicity.backends.cfbackend Succeeded
>   Import of duplicity.backends.tahoebackend Succeeded
>   Import of duplicity.backends.rsyncbackend Succeeded
>   Import of duplicity.backends.megabackend Succeeded
>   Import of duplicity.backends.dpbxbackend Succeeded
>   Import of duplicity.backends.webdavbackend Succeeded
>   Import of duplicity.backends.u1backend Succeeded
>   Import of duplicity.backends.imapbackend Succeeded
>   Import of duplicity.backends.sshbackend Succeeded
>   Main action: inc
>   ============================================================
> ====================
>   duplicity 0.6.23 (January 24, 2014)
>   Args: /usr/bin/duplicity /tmp/pippo/ s3+http://
> s3backupvdstmpmongodumpxxx -v9
>   Linux juju-obs-canonistack-machine-1 3.13.0-5-generic #20-Ubuntu SMP Mon
> Jan 20 19:56:38 UTC 2014 x86_64 x86_64
>   /usr/bin/python 2.7.6 (default, Jan 12 2014, 08:16:39)
>   [GCC 4.8.2]
>   ============================================================
> ====================
>   Using temporary directory /tmp/duplicity-FTJcEv-tempdir
>   Registering (mkstemp) temporary file /tmp/duplicity-FTJcEv-tempdir/
> mkstemp-p3onX7-1
>   Temp has 8320397312 available, backup will use approx 34078720.
>   Releasing lockfile <lockfile.LinkFileLock instance at 0x15bff38>
>   Removing still remembered temporary file /tmp/duplicity-FTJcEv-tempdir/
> mkstemp-p3onX7-1
>   Backend error detail: Traceback (most recent call last):
>     File "/usr/bin/duplicity", line 1489, in <module>
>       with_tempdir(main)
>     File "/usr/bin/duplicity", line 1483, in with_tempdir
>       fn()
>     File "/usr/bin/duplicity", line 1332, in main
>       do_backup(action)
>     File "/usr/bin/duplicity", line 1361, in do_backup
>       sync_archive(decrypt)
>     File "/usr/bin/duplicity", line 1094, in sync_archive
>       remlist = globals.backend.list()
>     File "/usr/lib/python2.7/dist-packages/duplicity/backend.py", line
> 429, in list
>       return map(tobytes, self._list())
>     File 
> "/usr/lib/python2.7/dist-packages/duplicity/backends/_boto_single.py",
> line 270, in _list
>       raise BackendException("No connection to backend")
>   BackendException: No connection to backend
>
>   BackendException: No connection to backend
>
>   On the same machine, with the same parameter, python boto works
>   perfectly.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/duplicity/+bug/1278529/+subscriptions
>

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Title:
  Using S3, "BackendException: No connection to backend"

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