fix(simple_metrics): warn when the pipelines doc is missing; document Mongo requirements (SIENTIAPDE-2191)

laborious/activities/model_metrics.py

@@ -551,7 +551,16 @@ class ModelMetrics(SientiaMonitoring):
         query = {'schedule_name': metadata['schedule_name']}
         try:
             pipeline = self.mongo_repository.find_one(self._PIPELINES_COLLECTION, query, metadata)
-            if not pipeline or not pipeline.get('frequency_alert'):
+            if not pipeline:
+                # Likely misconfig: MONGODB_DATABASE_NAME differs from the orchestrator's, or the
+                # schedule_name does not match its doc.
+                self.warning(
+                    f'No pipelines doc for schedule {metadata["schedule_name"]}: '
+                    'adaptive state skipped',
+                    metadata,
+                )
+                return None
+            if not pipeline.get('frequency_alert'):
                 return None
 
             runs = recovery_runs(input_data['interval_minutes'], pipeline['frequency_alert'])