Skip datasets without snapshots
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120e057ea2
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034431a935
@ -126,66 +126,70 @@ log "$exclude_list"
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for name in "${syncvols[@]}"; do
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if [[ $debug == "-v" ]]; then log "[DEBUG] Checking $name"; fi
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IFS=$' '
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if [ $($zfs list -H $target/$name > /dev/null 2>&1 ; echo $?) -gt 0 ]; then
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if [[ $debug == "-v" ]]; then log "[DEBUG] $target/$name does not exist"; fi
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prefix=""
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for part in $(echo $target/$(echo $name | cut -d'/' -f1) | sed "s/\// /g"); do
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if [ $($zfs list $prefix$part > /dev/null 2>&1 ; echo $?) -gt 0 ]; then
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if [[ $debug == "-v" ]]; then log "[DEBUG] $prefix$part does not exist"; fi
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log "Creating $prefix$part"
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if [[ $prefix/$part == $target ]]; then
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if [[ $debug == "-v" ]]; then log "[DEBUG] Disabling com.sun:auto-snapshot on $prefix$part"; fi
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autosnap=-ocom.sun:auto-snapshot=false
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fi
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$zfs create $autosnap -p $prefix$part
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else
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if [[ $prefix/$part == $target ]] && [[ $(zfs get -H -o value,source com.sun:auto-snapshot $prefix/$part) != "false local" ]]; then
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if [[ $debug == "-v" ]]; then log "[DEBUG] Disabling com.sun:auto-snapshot on $prefix$part"; fi
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$zfs set com.sun:auto-snapshot=false $prefix/$part
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fi
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fi
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prefix="$prefix$part/"
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done
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if [[ $debug == "-v" ]]; then log "[DEBUG] Start initial replication"; fi
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IFS=$'\n'
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for snap in $($ssh $sshcipher $sshport $source "zfs list -H -t snapshot -o name -S creation $name | grep -E \"$snapshot_filter\" | tail -1"); do
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log "Start initial replication: $snap => $target/$(echo $name | cut -d'/' -f1)"
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$ssh $ssh_ipher $sshport $source "zfs send -w -p $debug $snap" | $zfs receive -x mountpoint -x canmount -x $tag -x com.sun:auto-snapshot $debug -dF $target/$(echo $name | cut -d'/' -f1)
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done
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fi
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if [[ $debug == "-v" ]]; then log "[DEBUG] Start incremental replication"; fi
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guid=$($zfs list -H -o guid -s creation -t snapshot $target/$name | tail -1)
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last=$($ssh $sshcipher $sshport $source "zfs list -H -o name,guid -t snapshot $name | grep $guid | tail -1 | cut -f1")
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IFS=$'\n'
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for snap in $($ssh $sshcipher $sshport $source "zfs list -H -o name,guid -s creation -t snapshot $name | grep -E \"$snapshot_filter\" | grep --after-context=200 $guid | grep -v $guid | cut -f1"); do
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log "Replicating delta of $last => $snap to $target/$name"
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$ssh $sshcipher $sshport $source "zfs send -w $debug -i $last $snap" | zfs receive -x mountpoint -x canmount -x $tag -x com.sun:auto-snapshot -F $debug $target/$name
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last=$snap
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done
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if [[ $debug == "-v" ]]; then log "[DEBUG] Start deletion of old snapshots"; fi
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filter=$(echo -e $snapshot_filter | sed "s/|/\n/g")
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IFS=$'\n'
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for interval in $filter ; do
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if [[ $debug == "-v" ]]; then log "[DEBUG] Checking interval $interval"; fi
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guid=$($ssh $sshcipher $sshport $source "zfs list -H -o guid,name -S creation -t snapshot $name | grep $interval | cut -f1 | tail -1")
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if [[ "$(echo -e "$guid" | sed 's/\n//g')" != "" ]]; then
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snaps_to_delete=$($zfs list -H -o name,guid -S creation -t snapshot $target/$name | grep $interval | grep --after-context=200 $guid | grep -v $guid | cut -f1)
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snap_count=$($zfs list -H -o name,guid -S creation -t snapshot $target/$name | grep $interval | wc -l)
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for snap in $snaps_to_delete; do
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if [[ $snap_count -gt $min_keep ]]; then
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log "Deleting $snap"
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if [[ $debug == "-v" ]]; then log "[DEBUG] snap_count=$snap_count, min_keep=$min_keep"; fi
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$zfs destroy $debug $snap
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snap_count=$(expr $snap_count - 1)
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if [[ $($ssh $sshcipher $sshport $source "zfs list -H -t snapshot -o name -S creation $name 2>/dev/null | grep -E \"$snapshot_filter\" | wc -l") -gt 0 ]]; then
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IFS=$' '
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if [ $($zfs list -H $target/$name > /dev/null 2>&1 ; echo $?) -gt 0 ]; then
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if [[ $debug == "-v" ]]; then log "[DEBUG] $target/$name does not exist"; fi
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prefix=""
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for part in $(echo $target/$(echo $name | cut -d'/' -f1) | sed "s/\// /g"); do
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if [ $($zfs list $prefix$part > /dev/null 2>&1 ; echo $?) -gt 0 ]; then
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if [[ $debug == "-v" ]]; then log "[DEBUG] $prefix$part does not exist"; fi
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log "Creating $prefix$part"
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if [[ $prefix/$part == $target ]]; then
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if [[ $debug == "-v" ]]; then log "[DEBUG] Disabling com.sun:auto-snapshot on $prefix$part"; fi
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autosnap=-ocom.sun:auto-snapshot=false
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fi
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$zfs create $autosnap -p $prefix$part
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else
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if [[ $debug == "-v" ]]; then log "[DEBUG] Skipping deletion of $snap. snap_count=$snap_count, min_keep=$min_keep"; fi
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if [[ $prefix/$part == $target ]] && [[ $(zfs get -H -o value,source com.sun:auto-snapshot $prefix/$part) != "false local" ]]; then
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if [[ $debug == "-v" ]]; then log "[DEBUG] Disabling com.sun:auto-snapshot on $prefix$part"; fi
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$zfs set com.sun:auto-snapshot=false $prefix/$part
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fi
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fi
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prefix="$prefix$part/"
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done
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if [[ $debug == "-v" ]]; then log "[DEBUG] Start initial replication"; fi
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IFS=$'\n'
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for snap in $($ssh $sshcipher $sshport $source "zfs list -H -t snapshot -o name -S creation $name | grep -E \"$snapshot_filter\" | tail -1"); do
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log "Start initial replication: $snap => $target/$(echo $name | cut -d'/' -f1)"
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$ssh $ssh_ipher $sshport $source "zfs send -w -p $debug $snap" | $zfs receive -x mountpoint -x canmount -x $tag -x com.sun:auto-snapshot $debug -dF $target/$(echo $name | cut -d'/' -f1)
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done
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fi
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done
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if [[ $debug == "-v" ]]; then log "[DEBUG] Start incremental replication"; fi
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guid=$($zfs list -H -o guid -s creation -t snapshot $target/$name | tail -1)
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last=$($ssh $sshcipher $sshport $source "zfs list -H -o name,guid -t snapshot $name | grep $guid | tail -1 | cut -f1")
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IFS=$'\n'
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for snap in $($ssh $sshcipher $sshport $source "zfs list -H -o name,guid -s creation -t snapshot $name | grep -E \"$snapshot_filter\" | grep --after-context=200 $guid | grep -v $guid | cut -f1"); do
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log "Replicating delta of $last => $snap to $target/$name"
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$ssh $sshcipher $sshport $source "zfs send -w $debug -i $last $snap" | zfs receive -x mountpoint -x canmount -x $tag -x com.sun:auto-snapshot -F $debug $target/$name
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last=$snap
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done
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if [[ $debug == "-v" ]]; then log "[DEBUG] Start deletion of old snapshots"; fi
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filter=$(echo -e $snapshot_filter | sed "s/|/\n/g")
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IFS=$'\n'
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for interval in $filter ; do
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if [[ $debug == "-v" ]]; then log "[DEBUG] Checking interval $interval"; fi
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guid=$($ssh $sshcipher $sshport $source "zfs list -H -o guid,name -S creation -t snapshot $name | grep $interval | cut -f1 | tail -1")
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if [[ "$(echo -e "$guid" | sed 's/\n//g')" != "" ]]; then
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snaps_to_delete=$($zfs list -H -o name,guid -S creation -t snapshot $target/$name | grep $interval | grep --after-context=200 $guid | grep -v $guid | cut -f1)
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snap_count=$($zfs list -H -o name,guid -S creation -t snapshot $target/$name | grep $interval | wc -l)
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for snap in $snaps_to_delete; do
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if [[ $snap_count -gt $min_keep ]]; then
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log "Deleting $snap"
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if [[ $debug == "-v" ]]; then log "[DEBUG] snap_count=$snap_count, min_keep=$min_keep"; fi
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$zfs destroy $debug $snap
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snap_count=$(expr $snap_count - 1)
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else
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if [[ $debug == "-v" ]]; then log "[DEBUG] Skipping deletion of $snap. snap_count=$snap_count, min_keep=$min_keep"; fi
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fi
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done
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fi
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done
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else
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if [[ $debug == "-v" ]]; then log "[DEBUG] No snapshots found for $name with filter $snapshot_filter"; fi
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fi
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done
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