diff --git a/playbooks/ceilometerdb-size.yaml b/playbooks/ceilometerdb-size.yaml
index f9a6f7862..130bd1ca1 100644
--- a/playbooks/ceilometerdb-size.yaml
+++ b/playbooks/ceilometerdb-size.yaml
@@ -2,7 +2,7 @@
 - hosts: undercloud
   vars:
     metadata:
-      name: Events Database Size Check
+      name: Events Database Size Check (DEPRECATED)
       description: >
         The undercloud's events database can grow to a substantial
         size if event_time_to_live is set to a negative value (infinite limit).
@@ -10,6 +10,8 @@
         This validation checks event_time_to_live and fails if the variable is
         set to a negative value or if it has no custom setting
         (their value is -1 by default).
+
+        WARNING! This validation is considered as deprecated since Train release
       groups:
         - pre-deployment
     event_ttl_check: "event_time_to_live"
diff --git a/releasenotes/notes/ceilometerdb-size_deprecation-c4b7e28bdfa5862d.yaml b/releasenotes/notes/ceilometerdb-size_deprecation-c4b7e28bdfa5862d.yaml
new file mode 100644
index 000000000..f9873d28f
--- /dev/null
+++ b/releasenotes/notes/ceilometerdb-size_deprecation-c4b7e28bdfa5862d.yaml
@@ -0,0 +1,5 @@
+---
+deprecations:
+  - |
+    Since Panko has been deprecated during the Train cycle, the
+    ceilometerdb-size validation is now considered as deprecated as well.
diff --git a/roles/ceilometerdb-size/tasks/main.yml b/roles/ceilometerdb-size/tasks/main.yml
index 4d48c2280..c04fcddf7 100644
--- a/roles/ceilometerdb-size/tasks/main.yml
+++ b/roles/ceilometerdb-size/tasks/main.yml
@@ -1,4 +1,10 @@
 ---
+- name: Deprecation WARNING
+  warn:
+    msg: >-
+      Panko has been deprecated since the Train Release.
+      The 'ceilometerdb-size' validation is now considered as deprecated too.
+
 - name: Get the path of tripleo undercloud config file
   become: true
   hiera: