BackupPC-users

Re: [BackupPC-users] Running a command after backup

2011-02-10 19:28:39
Subject: Re: [BackupPC-users] Running a command after backup
From: "Jeffrey J. Kosowsky" <backuppc AT kosowsky DOT org>
To: "General list for user discussion, questions and support" <backuppc-users AT lists.sourceforge DOT net>
Date: Thu, 10 Feb 2011 19:26:11 -0500
Bowie Bailey wrote at about 16:48:28 -0500 on Thursday, February 10, 2011:
 > On 2/10/2011 4:26 PM, Jeffrey J. Kosowsky wrote:
 > > Bowie Bailey wrote at about 16:19:27 -0500 on Thursday, February 10, 2011:
 > >  > 
 > >  > So you are looking for something to run when ALL of the backups are
 > >  > finished rather that at the end of the backup for each machine?
 > >  > 
 > >  > I don't think there is anything built-in that will do that.
 > >
 > > Nor could there possibly be since there is no such concept as "all of
 > > the backups" -- each machine runs on it's own schedule based on the
 > > config file and when it was last backed up. So there is no guaranteed
 > > ordering or synchronization among the backups -- each proceeds to be
 > > backed up when it is ready. Even if they all start out ordered they
 > > will diverge over time due to different length of time it takes to
 > > back up each machine and different availability/downtimes.
 > >
 > > So there is no possible way for BackupPC to know when all the backups
 > > are finished let alone act on it...
 > 
 > As long as you know your schedule, you can do something like the script
 > I provided.  In my case, the backups start running at 7pm and the last
 > backup tends to kick off at about 3am.  So I could start watching the
 > queue at around 3:30am.  When there are no more running backups, it's
 > done for the day.
 > 
Well if you have a long enough blackout period and no laptops then
maybe you can rely on such synchronization... but I'm just saying that
there is no concept of "all the backup jobs being done" in
BackupPC. Yes, you can use blackouts and scripts to make it appear
that way but it's still not a natural/native concept.

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