A few years ago I had put a script on ganglia's bugzilla that modifies the rrd files to do a few simple things, like change the heartbeat value and change the number of RRAs, see:
http://bugzilla.ganglia.info/cgi-bin/bugzilla/show_bug.cgi?id=33 Since we are in the process of moving our gmetad server from an old 32-bit server to a new 64-bit server, I also needed the ability to move the rrd files, which meant dumping and restoring them, so I added this feature to the old script that I had from before. It is attached to this email in case anyone else might find it useful. ~Jason On Wed, 2008-05-21 at 08:10 -0700, Witham, Timothy D wrote: > >There may be a workaround thought: if you use 'rrdtool dump', you will > >get a (large) XML file with all of the data. You should be able to > >then use 'rrdtool restore' to read this back into the new .rrd file. > > But since you probably have hundreds or thousands of rrd files, you need > some automation. So use a script like the below saved as dumprestore. > Run "dumprestore dump | /bin/sh" from your rrd_rootdir on the old > system. This will write a .xml for each .rrd. Then rsync all the .xml > files to new machine and run "dumprestore restore | /bin/sh". After you > confirm it is working you can find . -name '*.xml' -exec rm -f {} \; to > clean up. > > -twitham > > #!/usr/bin/perl > > use warnings; > > sub oops { > die "$0 dump|restore\n"; > } > my $what = shift @ARGV or &oops; > my $in = 0; > $in = 'rrd' if $what eq 'dump'; > $in = 'xml' if $what eq 'restore'; > &oops unless $in; > > open PIPE, "find . -name '*.$in' -print |" or die $!; > while (<PIPE>) { > chomp; > my $in = $_; > my $out = $in; > $out =~ s/\.rrd$/\.xml/ or $out =~ s/\.xml$/\.rrd/; > print "rrdtool $what $in ", $out =~ /xml$/ ? '> ' : '', "$out\n"; > print "touch -r $in $out\n"; > } > > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > Ganglia-general mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ganglia-general > -- /------------------------------------------------------------------\ | Jason A. Smith Email: [EMAIL PROTECTED] | | Atlas Computing Facility, Bldg. 510M Phone: +1-631-344-4226 | | Brookhaven National Lab, P.O. Box 5000 Fax: +1-631-344-7616 | | Upton, NY 11973-5000, U.S.A. | \------------------------------------------------------------------/
ganglia-rrd-modify.pl
Description: Perl program
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