Ganglia rrd export / import

rrd_exporter.sh

#! /bin/bash -xe
# Note: run from /var/lib/ganglia directory, no need for subdir
# Run with: find /var/lib/ganglia/rrds/ -type d -exec sh -c 'cd "{}" ; /var/lib/ganglia/rrd_exporter.sh ;' \;

# backup current rrd files -- tar all and place in /tmp
tar --exclude='*.xml' -cvf /tmp/rrds-"$(date --date='now' +%F-%R)".tar rrds/*
echo "Backed up files in /tmp"

#Pull in rrd files one at a time
for i in *.rrd

do
   # if .xml file already exists, read next file
   if [ -f "$(basename "$i" .rrd).xml" ]
     then
        echo "$(basename "$i" .rrd).xml already exists. Moving on."
        continue
   fi

    # export rrd file as xml, leaving in current directory
    rrdtool dump "$i" > "$(basename "$i" .rrd).xml"

done

# tar all the .xml files, while preserving the directory structure
tar --exclude='*.rrd' -cvf /tmp/xml-rrds-"$(date --date='now' +%F-%R)".tar rrds/*

echo "DONE. Check /tmp for files."

rrd_importer.sh

#! /bin/bash -xe
# Note: run from /var/lib/ganglia directory, no need for subdir
# untar files in place before running.

# Run with: find /var/lib/ganglia/rrds/ -type d -exec sh -c 'cd "{}" ; /var/lib/ganglia/rrd_importer.sh ;' \;

# Stop processes
service ganglia-monitor stop
service gmond stop
service gmetad stop

# backup current rrd files -- tar all and place in /tmp
tar --exclude='*.xml' -cvf /tmp/rrds-"$(date --date='now' +%F-%R)".tar rrds/*
echo "Backed up files in /tmp"

#Pull in rrd files one at a time
for i in *.xml

do
#   # if .rrd file already exists, assume its been imported and read next file
#   if [ -f "$(basename "$i" .xml).rrd" ]
#     then
#        echo "$i already exists. Moving on."
#        continue
#   fi

    # export rrd file as xml, leaving in current directory
    rrdtool restore "$i" "$(basename "$i" .xml).rrd" -f # force overwrite existing rrds

done

# fix ganlia permissions
chown -R ganglia:ganglia rrds/*

echo "DONE. Restarting services."

service gmetad start
service ganglia-monitor start
# gmond is started by ganglia-monitor

echo "Services restarted. Check ganglia."

importing RRDs with rrdtool will frequently bork the permissions, so be sure to set permissions to ganglia:ganglia after import.