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#!/bin/bash -ex
max=20
size=1500
iosize=16384
iototal=16384000
iothreads=16
parent=`uuidgen`"-parent"
src=`uuidgen`"-src";
dst=`uuidgen`"-dst";
function cleanup() {
rbd snap purge $src || :
rbd rm $src || :
rbd snap purge $dst || :
rbd rm $dst || :
rbd snap unprotect $parent --snap parent || :
rbd snap purge $parent || :
rbd rm $parent || :
}
trap cleanup EXIT
# start from a clone
rbd create $parent --size $size --image-format 2 --stripe-count 8 --stripe-unit 65536
rbd bench-write $parent --io-size $iosize --io-threads $iothreads --io-total $iototal --io-pattern rand
rbd snap create $parent --snap parent
rbd snap protect $parent --snap parent
rbd clone $parent@parent $src --stripe-count 4 --stripe-unit 262144
rbd create $dst --size $size --image-format 2 --order 19
# mirror for a while
for s in `seq 1 $max`; do
rbd snap create $src --snap=snap$s
rbd export-diff $src@snap$s - $lastsnap | rbd import-diff - $dst &
rbd bench-write $src --io-size $iosize --io-threads $iothreads --io-total $iototal --io-pattern rand &
wait
lastsnap="--from-snap snap$s"
done
#trap "" EXIT
#exit 0
# validate
for s in `seq 1 $max`; do
ssum=`rbd export $src@snap$s - | md5sum`
dsum=`rbd export $dst@snap$s - | md5sum`
if [ "$ssum" != "$dsum" ]; then
echo different sum at snap$s
exit 1
fi
done
cleanup
trap "" EXIT
echo OK
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