rsync causing disk sleeps and loss of apps

[Anne Wilson]

On Wednesday 02 February 2011 17:52:16 Richard wrote:
> On Wed, Feb 02, 2011 at 03:06:56PM +0000, Anne Wilson wrote:
> > > You can look at the debug log with any viewer or do something like
> > > "grep open rsync-debug.log"
> > > and post the last 30 lines here.
> > 
> > I'm giving you more than 30 because I don't know how much of the ending
> > is due to my action in killing the process:
> > 
> > tail -50 rsync-debug.log
> 
> please try
> 
>  grep open rsync-debug.log | tail
> 
> - in first approximation we want to know what was the last few files it
> tried to open.
> 
grep open rsync-debug.log | tail
3235  open("fromCDs/Documents/Frances/WorkTemplates/catterick newsletter", 
O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC) = 3
3235  open("fromCDs/Documents/friendly.eps", O_RDONLY|O_LARGEFILE) = 3
3236  lstat64("fromCDs/Documents/Firewall/SurfNet_Firewall_files/hs-kader-
openbaar.gif", 0xbfebe7bc) = -1 ENOENT (No such file or directory)
3237  open("fromCDs/Documents/friendly.eps", O_RDONLY|O_LARGEFILE) = -1 ENOENT 
(No such file or directory)
3237  open("fromCDs/Documents/.friendly.eps.Np6jhQ", O_RDWR|O_CREAT|O_EXCL|
O_LARGEFILE, 0600 <unfinished ...>
3237  <... open resumed> )              = 1
3236  lstat64("fromCDs/Documents/Frances/Thesis/20060613/opening of chapter 
3.doc", 0xbfebe7bc) = -1 ENOENT (No such file or directory)
3235  open("fromCDs/Documents/fstab101.txt", O_RDONLY|O_LARGEFILE) = 3
3235  open("fromCDs/Documents/ftp.jpg", O_RDONLY|O_LARGEFILE) = 3
3235  open("fromCDs/Documents/garden_top.jpg", O_RDONLY|O_LARGEFILE) = 3

The comments about read-only made no sense to me, but it seems that they are 
being written as owned nobody:nobody.  I guess that that would mean that at 
the next write they can't be overwritten by files owned by anne:users - 
correct?  Certainly there are lots of messages like

rsync: chgrp "/mnt/server_home/anne/Documents/Bills/fluendo.pdf" failed: 
Operation not permitted (1)

and I couldn't see why it was wanting to change groups.

Anne
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