remote_fs=$2
remote_pool=${2%%/*}
+# return non-zero exit code if any command in the pipe fails
+set -o pipefail
+
+# get the backup pool from the command line or the config file if not specified
+if [[ -n $3 ]]; then
+ backup_pool=$3
+else
+ backup_pool=${backup_pool%% *} # use the first backup pool if none specified
+fi
+
# Setup our cleanup and exit trap
cleanup() {
if [[ -e "$local_list" ]]; then
# backup was interrupted for some reason. If we don't do this, the zfs send -R command
# below may complain about snaps already existing as it tries to resend from the
# previous backup marker again from a previously interrupted replicate.
- $zfs rollback -r ${backup_pool}/${previous_backup_marker}
+ $zfs rollback -rf ${backup_pool}/${previous_backup_marker}
if [ $? != 0 ]; then
- fatal_and_exit "-E- remote incremental $zfs rollback command failed on $hostname" $mailto
+ sleep 120
+ $zfs rollback -rf ${backup_pool}/${previous_backup_marker}
+ if [ $? != 0 ]; then
+ fatal_and_exit "-E- remote incremental $zfs rollback command failed on $hostname" $mailto
+ fi
fi
# Now it should be safe to send the snaps
replicate "$zfs send -Rc -I${previous_backup_marker} ${current_backup_marker}"
# don't check the return codes here because these may not exist, and that is ok
$zfs destroy ${backup_pool}/${previous_backup_marker} > /dev/null 2>&1
$ssh $remote $zfs destroy ${previous_backup_marker} > /dev/null 2>&1
+sleep 1
# Rename the current backup marker to be the previous backup marker
$zfs rename ${backup_pool}/${current_backup_marker} ${backup_pool}/${previous_backup_marker}