backup-solr.sh

#!/usr/bin/env bash

# run in batch CPU priority, with low-priority IO
rsync_command="chrt -b 0 ionice -c2 -n7 /usr/bin/rsync -av --delete"
rsync_output="start"

until [[ "$rsync_output" == "done" ]]
do
   # notice the trailing slash on the rsync source argument
   results_rsync=$($rsync_command /home/dspace/solr/ /home/backup/solr)
   echo "completed solr sync iteration"
   TEST=`echo "$results_rsync" | grep -o "data" | sed q`
   if [[ "${TEST}" != "data" ]]
   then
        rsync_output="done"
   fi
done