List Receiver wrote:
>
>>> Has anyone seen anything like this before? Any idea how I should go
>> about troubleshooting it?
>> This sounds like something unique to your wan link. Is it possible that
>> it times out and drops idle connections? Rsync transfers the entire
>> directory listing first, then the server walks through the whole list
>> and on incrementals it only transfers anything when differences are
>> found in the directory contents. If you have a large set of files with
>> few changes you might have long periods of idle time and some network
>> devices like nat routers may drop idle connections after timeout period
>> - usually these are long, but perhaps something is misconfigured.
>
> This is definitely possible. This particular host does have a lot of small
> files that are being backed up.
>
> I thought rsync transfers didn't really do much differently whether the run
> in BackupPC was full or incremental. I thought in both cases you're
> basically still only transferring the changes. Am I way off base here?
Incrementals completely skip files where the directory timestamp and
lengths match the previous. Fulls set the rsync option to do block
checksum comparisons on every file. The latter takes a lot longer
overall since it has to read the whole disk and doesn't use much more
bandwidth, but there would not be long periods of time when the line is
completely idle.
--
Les Mikesell
[EMAIL PROTECTED]
-------------------------------------------------------------------------
This SF.net email is sponsored by: Splunk Inc.
Still grepping through log files to find problems? Stop.
Now Search log events and configuration files using AJAX and a browser.
Download your FREE copy of Splunk now >> http://get.splunk.com/
_______________________________________________
BackupPC-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/backuppc-users
http://backuppc.sourceforge.net/
