Add TODO

Author: r4victor

src/dstack/_internal/server/services/fleets.py

@@ -520,7 +520,8 @@ async def delete_fleets(
         get_locker(get_db().dialect_name).lock_ctx(InstanceModel.__tablename__, instances_ids),
     ):
         # Refetch after lock
-        # TODO lock instances with FOR UPDATE?
+        # TODO: Lock instances with FOR UPDATE?
+        # TODO: Do not lock fleet when deleting only instances
         res = await session.execute(
             select(FleetModel)
             .where(

src/dstack/_internal/server/services/runs.py

@@ -484,6 +484,7 @@ async def submit_run(
 
     lock, _ = get_locker(get_db().dialect_name).get_lockset(lock_namespace)
     async with lock:
+        # FIXME: delete_runs commits, so Postgres lock is released too early.
         if run_spec.run_name is None:
             run_spec.run_name = await _generate_run_name(
                 session=session,