qa/workunits/rbd: show snapshot deltas during stress test failure

Signed-off-by: Jason Dillaman <dillaman@redhat.com>
(cherry picked from commit f079116e87161b55acaa08c55bf8b8e79cee8670)

diff --git a/qa/workunits/rbd/rbd_mirror_stress.sh b/qa/workunits/rbd/rbd_mirror_stress.sh
index 5125d0ed6e7dd5bac43a0a6564f1b139bd30ab8a..a17ad75e1b58e98f301fbfbd9944319b03ce84fe 100755 (executable)
--- a/qa/workunits/rbd/rbd_mirror_stress.sh
+++ b/qa/workunits/rbd/rbd_mirror_stress.sh
@@ -31,6 +31,7 @@ compare_image_snaps()
     local pool=$1
     local image=$2
     local snap_name=$3
+    local ret=0
 
     local rmt_export=${TEMPDIR}/${CLUSTER2}-${pool}-${image}.export
     local loc_export=${TEMPDIR}/${CLUSTER1}-${pool}-${image}.export
@@ -38,8 +39,13 @@ compare_image_snaps()
     rm -f ${rmt_export} ${loc_export}
     rbd --cluster ${CLUSTER2} -p ${pool} export ${image}@${snap_name} ${rmt_export}
     rbd --cluster ${CLUSTER1} -p ${pool} export ${image}@${snap_name} ${loc_export}
-    cmp ${rmt_export} ${loc_export}
+    if ! cmp ${rmt_export} ${loc_export}
+    then
+        show_diff ${rmt_export} ${loc_export}
+        ret=1
+    fi
     rm -f ${rmt_export} ${loc_export}
+    return ${ret}
 }
 
 wait_for_pool_images()