[Rdiff-Backup] Running Rdiff-Backup from Cron

[Dave Poirier]

We are trying to run a back up job from Cron.  We get an error, Rdiff 
shows defunct in Top and Python2 is still running.  The error we get in 
the log is as follows.....

Exception [Errno 32] Broken pipe raised of class exceptions.IOError
  File "/usr/bin/rdiff-backup", line 4463, in patch_increment_and_finalize
    try: dsrp = cls.check_skip_error(error_checked)
  File "/usr/bin/rdiff-backup", line 4473, in check_skip_error
    try: return thunk()
  File "/usr/bin/rdiff-backup", line 4457, in error_checked
    ITR(indexed_tuple).......


Our entry in Crontab...
rdiff-backup -v5 root@parkrose.k12.or.us::/var/ 
/var/rdiff-backup/ms/mail/var/

Running the same command from the command line runs perfectly.
Anyone had any experience with this?
Thanks
Dave