BackupPC-users

Re: [BackupPC-users] Long backup via rsync over unstable connection

2010-07-15 11:52:06
Subject: Re: [BackupPC-users] Long backup via rsync over unstable connection
From: Dan Pritts <danno AT internet2 DOT edu>
To: "General list for user discussion, questions and support" <backuppc-users AT lists.sourceforge DOT net>
Date: Thu, 15 Jul 2010 11:16:19 -0400
On Tue, Jul 13, 2010 at 12:12:08PM -0500, Les Mikesell wrote:
> On 7/13/2010 11:53 AM, Brian Mathis wrote:
> > I am trying to use BPC over a WAN, and the connection I'm using seems
> > to be unstable.  The backup is dying every few hours and giving a
> > "Child exited prematurely" message.  I can see a definite pattern in
> > my bandwidth usage going up and down.

I had similar issues that i was never able to solve to my satisfaction.

I worked around them by adding a few cnames for the client host, and configuring
each of them as a backup client, with a specific portion of the filesystem.

if you do this, make sure you have one that includes all by default, and 
excludes the other portions.  that way a new directory will get backed up.

> 
> I think incrementals are discarded on failures but the files copied in a 
> partial full are saved.  However saving them may not save that much time 
> since the full runs will verify the contents against the source anyway. 

it probably won't save time but it might save bandwidth, which might help
in his situation.

danno
--
Dan Pritts, Sr. Systems Engineer
Internet2
office: +1-734-352-4953 | mobile: +1-734-834-7224

ESCC/Internet2 Joint Techs
July 11-15, 2010 - Columbus, Ohio
http://events.internet2.edu/2010/jt-oarnet/

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