Le 28/01/2013 18:46, Carl Cravens a écrit :
> I've written a little tool to help analyze BackupPC "scheduling" that I
> thought others might find useful. It is meant to generate plots that can be
> viewed from the web, but it's just as easily used from the command line.
>
> https://github.com/ravenx99/backuppc-visualize/
>
> Over the past year+ that we've been using BackupPC at my company, we've
> struggled with getting all our machines backed up every 24 hours. We have
> over 60 Linux and Windows hosts, and over half of those are virtual machines
> all attached to a single EMC storage server, and a single full backup of all
> the hosts is at 2 TB of data after dedupe.
>
> Because of the load backups create on our VMs, our default is to blackout 6
> AM to 6 PM, and then allow only trivial machines to back up during the day.
> We restrict the number of concurrent backups to 3, due to the serious load it
> creates on a VM host when more than one of its guests is being backed up at
> the same time.
>
> This has caused a problem with getting backups of critical machines on a
> 24-hour cycle. In order to see how the backups are interacting, I wrote
> BackupPC-Visualize to create a broken-bar plot (a "timeline") indicating the
> time during which each backup ran over the last N days. This aggregate view
> of the data quickly identified our problem machines. (Our solution has been
> to use cron to force the full backups of problem machines to run on the
> weekend. A kludge, and I'd like to find a more elegant solution.)
>
> bpcviz consists of a simple Perl script that gathers and massages the
> /var/lib/backuppc/pc/<host>/backups data, and a Ploticus plot script to
> convert the data to visual form. I tried to use Gnuplot initially, but it
> won't do horizontal plots, and it handles multiple-interval time data very
> poorly (via a kludge).
>
> Let me know if you find it useful, and I'm open to considering feature
> requests... you can open an "issue" on Github tagged as "enhancement", or
> just drop me an email if Github is a barrier for you.
>
> (I hope the author of BackupPC doesn't object to the name... it's the most
> obvious way to make it clear that this tool works with BackupPC.)
>
This is realy a good idea. Easy to use and easy to interpret. Thank you.
This is my small contribution :
to avoid the error when parsing a host that has never been backed up,
issue a warn instead of die :
diff --git a/bpcviz-gatherdata b/bpcviz-gatherdata
index e796637..2d1b909 100755
--- a/bpcviz-gatherdata
+++ b/bpcviz-gatherdata
@@ -88,7 +88,8 @@ my @data = ();
# merge all the data files to sort them by time
for my $host (@hosts) {
my $file = "$hostdir/$host/backups";
- open( my $IN, '<', $file ) || die( "Cannot open $file: $!\n" );
+ unless (open $IN,'<', $file )
+ { warn( "Cannot open $file: $!\n" ); next ; }
while ( my $line = <$IN> ) {
chomp($line);
my @rec=split(/\t/, $line);
cheers
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