From: Mykola Golub <mgolub@mirantis.com>
Date: Sun, 27 Nov 2016 14:27:51 +0000 (+0200)
Subject: qa/workunits/rbd: use image id when probing for image presence
X-Git-Tag: v10.2.6~96^2~4
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=8f9a93c68947c05636a633c92dbbd69d2ed70c3d;p=ceph.git

qa/workunits/rbd: use image id when probing for image presence

This fixes a race in resync tests leading to false negative results.

Fixes: http://tracker.ceph.com/issues/18048
Signed-off-by: Mykola Golub <mgolub@mirantis.com>
(cherry picked from commit c23f56b9835f4e59d72f20a2218de8236574e65f)
---

diff --git a/qa/workunits/rbd/rbd_mirror.sh b/qa/workunits/rbd/rbd_mirror.sh
index 5fa138a697d7d..396600baa6fbe 100755
--- a/qa/workunits/rbd/rbd_mirror.sh
+++ b/qa/workunits/rbd/rbd_mirror.sh
@@ -255,8 +255,8 @@ wait_for_image_present ${CLUSTER1} ${POOL} ${image} 'present'
 wait_for_image_replay_started ${CLUSTER1} ${POOL} ${image}
 
 testlog "TEST: simple image resync"
-request_resync_image ${CLUSTER1} ${POOL} ${image}
-wait_for_image_present ${CLUSTER1} ${POOL} ${image} 'deleted'
+request_resync_image ${CLUSTER1} ${POOL} ${image} image_id
+wait_for_image_present ${CLUSTER1} ${POOL} ${image} 'deleted' ${image_id}
 wait_for_image_replay_started ${CLUSTER1} ${POOL} ${image}
 wait_for_status_in_pool_dir ${CLUSTER1} ${POOL} ${image} 'up+replaying' 'master_position'
 compare_images ${POOL} ${image}
@@ -264,9 +264,9 @@ compare_images ${POOL} ${image}
 testlog "TEST: image resync while replayer is stopped"
 admin_daemon ${CLUSTER1} rbd mirror stop ${POOL}/${image}
 wait_for_image_replay_stopped ${CLUSTER1} ${POOL} ${image}
-request_resync_image ${CLUSTER1} ${POOL} ${image}
+request_resync_image ${CLUSTER1} ${POOL} ${image} image_id
 admin_daemon ${CLUSTER1} rbd mirror start ${POOL}/${image}
-wait_for_image_present ${CLUSTER1} ${POOL} ${image} 'deleted'
+wait_for_image_present ${CLUSTER1} ${POOL} ${image} 'deleted' ${image_id}
 admin_daemon ${CLUSTER1} rbd mirror start ${POOL}/${image}
 wait_for_image_replay_started ${CLUSTER1} ${POOL} ${image}
 wait_for_status_in_pool_dir ${CLUSTER1} ${POOL} ${image} 'up+replaying' 'master_position'
@@ -274,7 +274,7 @@ compare_images ${POOL} ${image}
 
 testlog "TEST: request image resync while daemon is offline"
 stop_mirror ${CLUSTER1}
-request_resync_image ${CLUSTER1} ${POOL} ${image}
+request_resync_image ${CLUSTER1} ${POOL} ${image} image_id
 start_mirror ${CLUSTER1}
 wait_for_image_replay_started ${CLUSTER1} ${POOL} ${image}
 wait_for_status_in_pool_dir ${CLUSTER1} ${POOL} ${image} 'up+replaying' 'master_position'
@@ -295,8 +295,8 @@ wait_for_image_replay_stopped ${CLUSTER1} ${POOL} ${image}
 wait_for_status_in_pool_dir ${CLUSTER1} ${POOL} ${image} 'up+error' 'disconnected'
 
 testlog " - replay started after resync requested"
-request_resync_image ${CLUSTER1} ${POOL} ${image}
-wait_for_image_present ${CLUSTER1} ${POOL} ${image} 'deleted'
+request_resync_image ${CLUSTER1} ${POOL} ${image} image_id
+wait_for_image_present ${CLUSTER1} ${POOL} ${image} 'deleted' ${image_id}
 wait_for_image_replay_started ${CLUSTER1} ${POOL} ${image}
 wait_for_replay_complete ${CLUSTER1} ${CLUSTER2} ${POOL} ${image}
 test -n "$(get_mirror_position ${CLUSTER2} ${POOL} ${image})"
@@ -320,8 +320,8 @@ wait_for_image_replay_stopped ${CLUSTER1} ${POOL} ${image}
 wait_for_status_in_pool_dir ${CLUSTER1} ${POOL} ${image} 'up+error' 'disconnected'
 
 testlog " - replay started after resync requested"
-request_resync_image ${CLUSTER1} ${POOL} ${image}
-wait_for_image_present ${CLUSTER1} ${POOL} ${image} 'deleted'
+request_resync_image ${CLUSTER1} ${POOL} ${image} image_id
+wait_for_image_present ${CLUSTER1} ${POOL} ${image} 'deleted' ${image_id}
 wait_for_image_replay_started ${CLUSTER1} ${POOL} ${image}
 wait_for_replay_complete ${CLUSTER1} ${CLUSTER2} ${POOL} ${image}
 test -n "$(get_mirror_position ${CLUSTER2} ${POOL} ${image})"
diff --git a/qa/workunits/rbd/rbd_mirror_helpers.sh b/qa/workunits/rbd/rbd_mirror_helpers.sh
index a658da254d107..e9360e7170409 100755
--- a/qa/workunits/rbd/rbd_mirror_helpers.sh
+++ b/qa/workunits/rbd/rbd_mirror_helpers.sh
@@ -731,9 +731,13 @@ test_image_present()
     local pool=$2
     local image=$3
     local test_state=$4
+    local image_id=$5
     local current_state=deleted
+    local current_image_id
 
-    rbd --cluster=${cluster} -p ${pool} ls | grep "^${image}$" &&
+    current_image_id=$(get_image_id ${cluster} ${pool} ${image})
+    test -n "${current_image_id}" &&
+    test -z "${image_id}" -o "${image_id}" = "${current_image_id}" &&
     current_state=present
 
     test "${test_state}" = "${current_state}"
@@ -745,21 +749,41 @@ wait_for_image_present()
     local pool=$2
     local image=$3
     local state=$4
+    local image_id=$5
     local s
 
+    test -n "${image_id}" ||
+    image_id=$(get_image_id ${cluster} ${pool} ${image})
+
     # TODO: add a way to force rbd-mirror to update replayers
     for s in 0.1 1 2 4 8 8 8 8 8 8 8 8 16 16 32 32; do
 	sleep ${s}
-	test_image_present "${cluster}" "${pool}" "${image}" "${state}" && return 0
+	test_image_present \
+            "${cluster}" "${pool}" "${image}" "${state}" "${image_id}" &&
+        return 0
     done
     return 1
 }
 
+get_image_id()
+{
+    local cluster=$1
+    local pool=$2
+    local image=$3
+
+    rbd --cluster=${cluster} -p ${pool} info ${image} |
+	sed -ne 's/^.*block_name_prefix: rbd_data\.//p'
+}
+
 request_resync_image()
 {
     local cluster=$1
     local pool=$2
     local image=$3
+    local image_id_var_name=$1
+
+    eval "${image_id_var_name}='$(get_image_id ${cluster} ${pool} ${image})'"
+    eval 'test -n "$'${image_id_var_name}'"'
 
     rbd --cluster=${cluster} -p ${pool} mirror image resync ${image}
 }