It appears that I should have checked more carefully before e-mailing
the list. This e-mail is just to clarify the behavior of --relative
using rsync as a daemon. This information will be added (in a different
form) to the documentation in the 1.2.0 release.
When rsync is running as a daemon, it exports 1 or more "modules", which
are basically starting directories.
--relative works, but in relation to the root of the module, not the
root of the domain.
-- BEGIN EXAMPLE ---
user < at > localhost:~$ mkdir tmp/
user < at > localhost:~$ rsync -av --delete --numeric-ids --relative
--delete-excluded
rsync://rsync.samba.org/rsyncftp/binaries/debian-i386/
tmp/
Welcome to the samba.org anonymous rsync archives.
Contact tpot < at > samba.org if you have problems with this service.
------
receiving file list ... done
binaries/
binaries/debian-i386/
binaries/debian-i386/README.html
binaries/debian-i386/rsync_2.5.7-1.diff.gz
binaries/debian-i386/rsync_2.5.7-1.dsc
binaries/debian-i386/rsync_2.5.7-1_i386.changes
binaries/debian-i386/rsync_2.5.7-1_i386.deb
sent 190 bytes received 187938 bytes 75251.20 bytes/sec
total size is 187351 speedup is 1.00
user < at > localhost:~$ ls -l tmp/binaries/debian-i386/
total 200K
-rw-rw-r-- 1 ndr scubanin 2.0K Dec 3 2003 README.html
-rw-r--r-- 1 ndr scubanin 41K Dec 3 2003 rsync_2.5.7-1.diff.gz
-rw-r--r-- 1 ndr scubanin 543 Dec 3 2003 rsync_2.5.7-1.dsc
-rw-r--r-- 1 ndr scubanin 981 Dec 3 2003 rsync_2.5.7-1_i386.changes
-rw-r--r-- 1 ndr scubanin 139K Dec 3 2003 rsync_2.5.7-1_i386.deb
-- END EXAMPLE --
As you can see, the remaining paths are kept intact, but the rsyncftp/
path is omitted, because it's a module that's exported from rsync's servers.
Look what happens when I try to sync the entire domain:
-- BEGIN EXAMPLE --
user < at > localhost:~$ rsync -av --delete --numeric-ids --relative
--delete-excluded
rsync://rsync.samba.org/ tmp/
Welcome to the samba.org anonymous rsync archives.
Contact tpot < at > samba.org if you have problems with this service.
------
ftp whole ftp area (approx 2 GB)
sambaftp Samba ftp area (approx 500Mb)
sambaftp-mirror Samba ftp area including Binary_Packages (approx 1.4 GB)
rsyncftp rsync ftp area
sambawww Samba WWW pages (approx 100 MB)
distccwww distcc WWW pages
cvs CVS repository
tivo
-- END EXAMPLE --
It's only possible to start a transfer one level down, out of one of the
rsync daemon's "modules".
I hope this clears up the misinformation from my previous post.
-Nathan
I noticed that while backing up the rsync repository, the --relative
argument doesn't seem to have any affect.
Local filesystem paths and remote SSH paths work as I would expect
under the new system.
Here is what I'm have in my rsnapshot.conf file:
backup
rsync://rsync.samba.org/rsyncftp/ rsync.samba.org/
And here is the command the rsync executes:
/usr/bin/rsync -azq --delete --numeric-ids --relative
--delete-excluded \
rsync://rsync.samba.org/rsyncftp/ \
/backup/private/snapshots/daily.0/rsync.samba.org/
Based on this, I would have expected the files to end up in:
/backup/private/snapshots/daily.0/rsync.samba.org/rsyncftp/
But instead, what happens is they end up in:
/backup/private/snapshots/daily.0/rsync.samba.org/
The rsync man page does not mention anything about an exception using
the rsync protocol. Am I doing something wrong here, or is there a
subtlety of rsync I am maybe not understanding?
In the meantime, if you're trying out 1.2.0rc1, be aware of this
potential gotcha!
If there is a way to make this more consistent with the handling of
local paths and ssh backups, I would like to change rsnapshot to make
rsync:// backups act the same. Otherwise, I suppose the documentation
will have to be modified to reflect this fact.
Thanks,
-Nathan
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