Does files-from work with --delete?
ppokorny at penguincomputing.com
Wed Nov 11 12:55:53 MST 2009
I am trying to use rsync (3.0.6) to keep two directories as exact
duplicates. I would normally run:
rsync -av -S --delete /path/to/src/ /path/to/dst/
to do this. Unfortunately, the directories have become rather large
(2TB, a million files) and so the tree walk has become a prohibitively
time consuming part of the operation.
However, I have a way to generate a list of file changes since the last
replication that is much faster. I would like to provide this list to
rsync using --files-from, but I'm not clear on how to represent
deletions. If I list the file that I know exists in the destination
that needs to be deleted (because it no longer exists in the source), I
$ find src dst -print
$ cat list
$ ./rsync-3.0.6/rsync -av -S --delete --files-from=list -n src/ dst/
building file list ... rsync: link_stat
"/home/ppokorny/_work/_customers/_ga/_rsync_test/src/c/p" failed: No
such file or directory (2)
sent 61 bytes received 15 bytes 152.00 bytes/sec
total size is 0 speedup is 0.00 (DRY RUN)
rsync error: some files/attrs were not transferred (see previous errors)
(code 23) at main.c(1039) [sender=3.0.6]
I am curious how a remote repository that is providing files-from lists
to clients would represent deletions? In the code, I can see that when
parsing the files-from list, no special handling is done when link_stat
returns a file-not-found error, which I suspect is the cause of the
I can also imagine terrible damage that could result from enabling --del
and trusting a remote repository to provide a files-from list. But this would seem to be an
essential feature for keeping two directories equivalent using files-from.
If modifying the file sending code to detect the link_stat "not found"
error and if --delete is enabled, sending that as a delete request (is
there such a thing in the protocol?) is the right thing, then I'll work
on a code patch.
Philip Pokorny, RHCE, Chief Arch. & Sr. Dir. HW & Field Eng.
Tel: 415-954-2823 Cell: 415-370-0835
Fax: 415-954-2899 Toll Free: 888-PENGUIN
PENGUIN COMPUTING, INC.
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the rsync