diff --git a/cloudkitty/orchestrator.py b/cloudkitty/orchestrator.py
index 2a5614b7..14a44b4d 100644
--- a/cloudkitty/orchestrator.py
+++ b/cloudkitty/orchestrator.py
@@ -153,6 +153,10 @@ class APIWorker(BaseWorker):
 class Worker(BaseWorker):
     def __init__(self, collector, storage, tenant_id=None):
         self._collector = collector
+        if getattr(self._collector, 'collector_name') == 'ceilometer':
+            LOG.warning('Ceilometer collector is deprecated and will be '
+                        'removed during R cycle. This collector only works '
+                        'with versions prior to Ocata')
         self._storage = storage
         self._period = METRICS_CONF['period']
         self._wait_time = METRICS_CONF['wait_periods'] * self._period
diff --git a/releasenotes/notes/deprecate-ceilometer-collector-6d8f72c84b95662b.yaml b/releasenotes/notes/deprecate-ceilometer-collector-6d8f72c84b95662b.yaml
new file mode 100644
index 00000000..fbce42d5
--- /dev/null
+++ b/releasenotes/notes/deprecate-ceilometer-collector-6d8f72c84b95662b.yaml
@@ -0,0 +1,5 @@
+---
+deprecations:
+  - |
+    The ceilometer collector has been deprecated. Gnocchi should be used by
+    default. The collector will be removed during the Rocky development cycle.