mgr/rbd_support: log number of images

... that have one snapshot request pending when the
mirror_snapshot_schedule handler is shutting down.

Signed-off-by: Ramana Raja <rraja@redhat.com>
(cherry picked from commit edc3b0e80653c30d0fc318a24673e8a0568912ad)

diff --git a/src/pybind/mgr/rbd_support/mirror_snapshot_schedule.py b/src/pybind/mgr/rbd_support/mirror_snapshot_schedule.py
index 0bae891c67aee6db6cb689475540e7fda53b043e..122a3cd3997b9e60a277ef689d4759f75b68b260 100644 (file)
--- a/src/pybind/mgr/rbd_support/mirror_snapshot_schedule.py
+++ b/src/pybind/mgr/rbd_support/mirror_snapshot_schedule.py
@@ -48,10 +48,13 @@ class CreateSnapshotRequests:
         self.wait_for_pending()
 
     def wait_for_pending(self) -> None:
-        self.log.debug("CreateSnapshotRequests.wait_for_pending")
         with self.lock:
             while self.pending:
+                self.log.debug(
+                    "CreateSnapshotRequests.wait_for_pending: "
+                    "{} images".format(len(self.pending)))
                 self.condition.wait()
+        self.log.debug("CreateSnapshotRequests.wait_for_pending: done")
 
     def add(self, pool_id: str, namespace: str, image_id: str) -> None:
         image_spec = ImageSpec(pool_id, namespace, image_id)