[GitHub] [airflow] ashb commented on a change in pull request #6342: [AIRFLOW-5662] fix incorrect naming and batch db call for scheduler metrics

[GitBox <gi...@apache.org>]

ashb commented on a change in pull request #6342: [AIRFLOW-5662] fix incorrect naming and batch db call for scheduler metrics
URL: https://github.com/apache/airflow/pull/6342#discussion_r391559174
 
 

 ##########
 File path: airflow/models/pool.py
 ##########
 @@ -48,6 +50,45 @@ def get_pool(pool_name, session=None):
     def get_default_pool(session=None):
         return Pool.get_pool(Pool.DEFAULT_POOL_NAME, session=session)
 
+    @staticmethod
+    @provide_session
+    def slots_stats(session=None) -> Dict[str, Dict[str, int]]:
+        from airflow.models.taskinstance import TaskInstance  # Avoid circular import
+
+        pools = {}
+
+        pool_rows = session.query(Pool.pool, Pool.slots).all()
 
 Review comment:
   Do we need to do a second (well, first) query here?

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