I upped the verbosity of the duplicity command, and here is the Python backtrace of the read operation timeout:
Level 1:duplicity:Backtrace of previous error: Traceback (innermost last): File "/usr/lib/python2.7/dist-packages/duplicity/backends/u1backend.py", line 80, in request resp, content = self.client.request(url, method, headers=headers, body=body) File "/usr/lib/python2.7/dist-packages/httplib2/__init__.py", line 1596, in request (response, content) = self._request(conn, authority, uri, request_uri, method, body, headers, redirections, cachekey) File "/usr/lib/python2.7/dist-packages/httplib2/__init__.py", line 1344, in _request (response, content) = self._conn_request(conn, request_uri, method, body, headers) File "/usr/lib/python2.7/dist-packages/httplib2/__init__.py", line 1314, in _conn_request response = conn.getresponse() File "/usr/lib/python2.7/httplib.py", line 1045, in getresponse response.begin() File "/usr/lib/python2.7/httplib.py", line 409, in begin version, status, reason = self._read_status() File "/usr/lib/python2.7/httplib.py", line 365, in _read_status line = self.fp.readline(_MAXLINE + 1) File "/usr/lib/python2.7/socket.py", line 476, in readline data = self._sock.recv(self._rbufsize) File "/usr/lib/python2.7/ssl.py", line 298, in recv return self.read(buflen) File "/usr/lib/python2.7/ssl.py", line 217, in read return self._sslobj.read(len) SSLError: The read operation timed out -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to deja-dup in Ubuntu. https://bugs.launchpad.net/bugs/1161599 Title: Backup to Ubuntu one failed, after 5 attempts status 400 bad request Status in “deja-dup” package in Ubuntu: Confirmed Status in “duplicity” package in Ubuntu: New Bug description: On Raring using deja-dup to backup to Ubuntu one, when I add a particular git repository to the folders to backup and then start the backup, the process sits for some minutes at the start of the upload operation and then fails with a popup "Backup Failed. Giving up on request after 5 attempts last status 400 bad request". The progress bar does not get started as far as I can see. While it is saying that it is uploading I can see in System Monitor that data is being continuously sent, but after the failure there are no new files on U1. By a process of elimination I determined that it is the objects directory (which itself contains a large number of subdirectories each containing a number of small files) that is causing the problem. I attempted to determine whether it was a particular file or folder that was causing the problem but it seems not to be consistent. I thought that I had found a particular subfolder causing the problem, I cleared .cache/deja_dup, and then it accepted that folder. However when I then put back the rest of the subfolders it failed again. I copied the complete git repository to another machine (running up to date Ubuntu 12.04) and backing up from there (to a different U1 account) deja_dup has no problems. I also notice that on Raring it always takes a long time in the verification phase even when only a trivial change has been made. It is as if it is downloading the whole repository, but whether that is a related problem I do not know. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: deja-dup 25.5-0ubuntu1 ProcVersionSignature: Ubuntu 3.8.0-15.25-generic 3.8.4 Uname: Linux 3.8.0-15-generic i686 ApportVersion: 2.9.2-0ubuntu5 Architecture: i386 Date: Thu Mar 28 20:28:06 2013 InstallationDate: Installed on 2012-08-01 (239 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha i386 (20120730.1) MarkForUpload: True SourcePackage: deja-dup UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/deja-dup/+bug/1161599/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp