Les,
The only difference I can see is that, as you point out, --one-file-system is
purely handled by the sender and doesn't need to be "supported" as such by the
receiver. I haven't as yet figured out how to get rsyncd to print out the final
set of options it is using when backuppc establishes a connection to it so I
don't know whether whole-file is being used directly. However, the full backups
are CPU bound for both the rsync and BackupPC_dump processes and if I do a
iftop to look at the traffic on the loopback network connection there is hardly
anything being transferred over it. This suggests that only checksums are being
transferred over the connection rather than the data itself. I will look into
getting rsyncd to print out more verbose log files so that I can see if it is
indeed using the delta xfer algorithm even though I specify --whole-file.
-----Original Message-----
From: Les Mikesell [mailto:lesmikesell AT gmail DOT com]
Sent: Thursday, 26 September 2013 2:01 PM
To: General list for user discussion, questions and support
Subject: Re: [BackupPC-users] RsyncP and --whole-file
On Tue, Sep 24, 2013 at 6:58 PM, Chris Adamson <chris.adamson AT mcri.edu DOT
au> wrote:
> This is /usr/lib/perl5/File/RsyncP.pm
>
> 115 #
> 116 # Since the exclude arguments are no longer needed (they are
> 117 # passed via the socket, not the command-line args), update
> 118 # $rs->{rsyncOpts}
> 119 #
> 120 @{$rs->{rsyncArgs}} = @ARGV;
> 121
> 122 #
> 123 # Now process the rest of the arguments we care about
> 124 #
> 125 return if ( !$p->getoptions($rs->{rsyncOpts},
> 126 "block-size=i",
> 127 "devices|D",
> 128 "from0|0",
> 129 "group|g",
> 130 "hard-links|H",
> 131 "ignore-times|I",
> 132 "links|l",
> 133 "numeric-ids",
> 134 "owner|o",
> 135 "perms|p",
> 136 "protocol=i",
> 137 "recursive|r",
> 138 "relative|R",
> 139 "timeout",
> 140 "verbose|v+",
> 141 ) );
>
> Note that whole-file is not included in the list of options that it looks
> for, so it is ignored by RsyncP. This is 0.68 but it is the same deal in 0.70.
>
I don't see --one-file-system in that list either, but I know it is honored
because I use it everywhere. This must be the list that is processed on the
receiving side. Wouldn't whole-file be passed to the sender and handled there?
--
Les Mikesell
lesmikesell AT gmail DOT com
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