Howdy all. I started a backup manually of a remote host (read: backup
using rsync over ssh through the public internet) yesterday morning at
~10am EST. I was seeing network traffic all day yesterday of ~600K as
expected. Last night the network traffic stopped, and so I looked at the
web interface to see if the backup had finished successfully. The cgi
seems to think the backup is still happening, but there is no CPU
utilization, network traffic, or I/O traffic. Top just shows the system
as being idle. So I ran a ps -A | grep Backup to see what I could see,
and got this:
16897 ?00:00:03 BackupPC
16901 ?00:00:00 BackupPC_trashC
16928 ?00:00:13 BackupPC_dump defunct
16942 ?01:56:27 BackupPC_dump
What does the defunct mean? I imagine it means something's not right.
The Xfer PID processes seem to be the BackupPC_dump as well as an ssh. It
may be relevant that this is the first backup for this particular host. I
was thinking of giving it smaller pieces to backup next time so it doesn't
have the all at once problem, as someone on this list recently suggested,
but I wanted to ask first if there's any good reason to wait on these
processes, or if I should just assume them to be dead. Strace doesn't
seem to think anything is happening with PIDs 16928 or 16942. Comments?
--
Randy Barlow
http://www.electronsweatshop.com
Oh me of little faith...
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