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some fix to snapshotsize calculation

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Bastian Mäuser
2022-10-24 15:13:36 +02:00
parent fd190a3622
commit bc2f6f34fc
2 changed files with 11 additions and 8 deletions
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2
README.md
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@@ -88,7 +88,7 @@ it's not aware of that paramter.
## Installation of prerequisites
```apt install git pv
```apt install git pv gawk
## Install the Script somewhere, eg to /opt

17
crossover
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@@ -14,7 +14,8 @@ declare -r PVE_NODES="$PVE_DIR/nodes"
declare -r QEMU='qemu-server'
declare -r QEMU_CONF_CLUSTER="$PVE_NODES/*/$QEMU"
declare -r EXT_CONF='.conf'
declare -r PVFORMAT='elapsed:%t remaining:%e current:%r average:%a %b %p'
declare -r PVFORMAT_FULL='elapsed:%t remaining:%e current:%r average:%a %b %p'
declare -r PVFORMAT_SNAP='elapsed:%t current:%r average:%a %b'
declare -r LOG_FILE=$(mktemp)
@@ -388,7 +389,7 @@ function mirror() {
snapts=$(echo $currentlocal | sed -r -e 's/.*@mirror-(.*)/\1/')
snapshotsize=$(rbd du --pretty-format --format json $src_image_pool/$src_image_name|jq '.images[] | select (.snapshot_id == null) | {provisioned_size}.provisioned_size')
log debug "snapsize $snapname: $snapshotsize "
xmitjob="rbd export --rbd-concurrent-management-ops 8 $src_image_pool/$src_image_name$snapshot_name --no-progress - | pv -s $snapshotsize -F \"VM $vm_id - Full xmit: $PVFORMAT\" | ssh $opt_destination rbd import --image-format 2 - $dst_image_pool/$dst_image_name"
xmitjob="rbd export --rbd-concurrent-management-ops 8 $src_image_pool/$src_image_name$snapshot_name --no-progress - | pv -s $snapshotsize -F \"VM $vm_id - Full xmit: $PVFORMAT_FULL\" | ssh $opt_destination rbd import --image-format 2 - $dst_image_pool/$dst_image_name"
# create initial snapshot on destination
if ! do_run $xmitjob; then
log error "Transmitting Image failed"
@@ -398,13 +399,15 @@ function mirror() {
do_run $cmd
else
log debug "Basecopy + snapshot on destination - let's just transfer the diff"
snapshotsize=$(rbd diff $src_image_pool/$currentlocal --from-snap $opt_snapshot_prefix$basets|awk '{ SUM += $2 } END { print SUM }')
if [ -n $snapshotsize ]; then
log debug "sizer: rbd diff $src_image_pool/$currentlocal --from-snap $opt_snapshot_prefix$basets|gawk --bignum '{ SUM += \$2 } END { print SUM }'"
snapshotsize=$(rbd diff $src_image_pool/$currentlocal --from-snap $opt_snapshot_prefix$basets|gawk --bignum '{ SUM += $2 } END { print SUM }')
log debug "snapshotsize: $snapshotsize"
if [ -z "$snapshotsize" ]; then
#disk was not attached, or really nothing has changed..
echo "ZERO!"
snapshotsize=0
fi
log debug "snapsize $snapname: $snapshotsize "
xmitjob="rbd export-diff --no-progress --from-snap $opt_snapshot_prefix$basets $src_image_pool/$currentlocal - | pv -s $snapshotsize -F \"VM $vm_id - Snap xmit: $PVFORMAT\" | ssh $opt_destination rbd import-diff --no-progress - $dst_image_pool/$dst_image_name"
xmitjob="rbd export-diff --no-progress --from-snap $opt_snapshot_prefix$basets $src_image_pool/$currentlocal - | pv -F \"VM $vm_id - Snap xmit: $PVFORMAT_SNAP\" | ssh $opt_destination rbd import-diff --no-progress - $dst_image_pool/$dst_image_name"
log debug "xmitjob: $xmitjob"
if ! do_run $xmitjob; then
log error "Transmitting Image failed"
@@ -424,7 +427,7 @@ function mirror() {
log info "VM $dvmid - Unlocking destination VM $dvmid"
fi
done
log info "Start mirror $(date "+%F %T")"
log info "Finnished mirror $(date "+%F %T")"
}
function do_housekeeping(){