1 files changed, 59 insertions, 0 deletions
diff --git a/src/ceph/qa/workunits/rbd/diff_continuous.sh b/src/ceph/qa/workunits/rbd/diff_continuous.sh
new file mode 100755
index 0000000..41e4412
--- /dev/null
+++ b/src/ceph/qa/workunits/rbd/diff_continuous.sh
@@ -0,0 +1,59 @@
+#!/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
+