[Duplicity-talk] Occasional backup failures

[Florian Lindner]

Hello,

an my server I have an cronjob running backups. From times to times  
(about one or two times a week) a backup fails:

Performing full backup.
Running 'sftp  address@hidden' failed (attempt #1)
Running 'sftp  address@hidden' failed (attempt #2)
Running 'sftp  address@hidden' failed (attempt #3)
Running 'sftp  address@hidden' failed (attempt #4)
Running 'sftp  address@hidden' failed (attempt #5)
Giving up trying to execute 'sftp   
address@hidden' after 5 attempts
Traceback (most recent call last):
 File "/usr/bin/duplicity", line 463, in <module>
   with_tempdir(main)
 File "/usr/bin/duplicity", line 458, in with_tempdir
   fn()
 File "/usr/bin/duplicity", line 390, in main
   globals.archive_dir).set_values()
 File "/usr/lib/python2.5/site-packages/duplicity/collections.py",  
line 476, in set_values
   backend_filename_list = self.backend.list()
 File "/usr/lib/python2.5/site-packages/duplicity/backends.py", line  
504, in list
   l = self.run_sftp_command(commandline, commands).split('\n')[1:]
 File "/usr/lib/python2.5/site-packages/duplicity/backends.py", line  
473, in run_sftp_command
   raise BackendException("Error running '%s'" % commandline)
duplicity.backends.BackendException: Error running 'sftp  address@hidden 
'

The next backup (two different backups with the same target server and  
config (except dir) are run each night) usually works without problems.

Any idea what can cause this? Or how to get more information about the  
problem?

Thanks,

Florian