[BackupPC-users] Hosts that go to sleep during backup

Some of my target hosts go to sleep during a backup.  These are laptops, and 
the user closes the lid and goes home.  When that happens, rsync (the backup 
method I use) isn't killed.  Therefore the BackupPC server never registers 
this as a network interruption and I must wait for that backup process to time 
out before it is marked as a failure.

Has anyone solved this?  I can think of two solutions:

1. On the clients that might sleep, write a script that is added to the stuff 
that is run prior to software suspend.  Have it kill the running rsync.  Thus 
the server is warned that the connection was shut down.

2. Have the server ping the client every 60 seconds or so as a backup is 
running.  If the pings don't respond for 5 minutes in a row or something, stop 
the backup.

The reason this is an issue is because I've set only one backup at a time, as 
most laptop users are on wireless and I cannot have too many backup processes 
run at once.

Regards,
Tyler

-- 
"I have never killed a man, but I have read many obituaries with great
pleasure."
   -- Clarence Darrow

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