> On Fri, Apr 15, 2011 at 07:27:29PM -0500, Michael Stowe wrote:
> | > I don't think Windows is relevant here, I think the problem is because
> | > it's a large file and backup is via FTP.
> |
> | Find out!  See if you can ftp the file from a command line client.
>
> The strace I included shows the file being read from the the remote
> side and more memory being allocated on the server side.  Eventually
> BackupPC_dump hits its limit and can't allocate memory, gives up, and
> writes "Out of memory!" to the LOG file.

Yes, but this doesn't imply that the file can be FTP'ed at all.  I still
recommend you find this out.

> I'll have to look into the FTP libraries and see if I can find an
> alternate approach that perhaps FTPs the file into a local tmp file.
> The current approach for FTP in BackupPC clearly doesn't work for
> larger files.

I'm not sure I'd recommend it in any case.

> | > (I'm using FTP because my Windows rsync of choice - DeltaCopy - seemed
> | > to be confused by Windows 7's multitude of links/shortcuts, and we
> | > don't want to use a share on portable machines, out of a belief that
> | > we can control FTP better than we can control shares.)
> |
> | An intriguing belief, as is the concept that rsync is confused by links.
> | Mine isn't, but I don't use DeltaCopy.
>
> I didn't say rsync was confused by links, I said DeltaCopy ran into
> problems on Windows 7.  Though I did use the wrong terminology - it's the
> Windows "junctions" that it has trouble with.  My guess might be that
> DeltaCopy (or the underlying windows built rsync) needs to treat
> a junction the same as a symbolic link.  Some others ran into the
> same problem and mentioned it here:
>     http://forums.aboutmyx.com/forums/posts/list/176.page

It sure seems like your problem is DeltaCopy, not rsync.  For the record,
my cygwin copy of rsync treats Windows links like ... links.  (Windows 7
uses links, not junctions, for things like "documents.")

Seems to be that it would be easier to simply locate a non-broken version
of rsync than to try to get ftp to do something it's not particularly good
at.


> Cheers!
>
> John
>


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