[GitHub] [airflow] ashb commented on a change in pull request #15112: Avoid scheduler/parser manager deadlock by using non-blocking IO

[GitBox]

ashb commented on a change in pull request #15112:
URL: https://github.com/apache/airflow/pull/15112#discussion_r605047562



##########
File path: airflow/utils/dag_processing.py
##########
@@ -696,11 +706,20 @@ def _run_parsing_loop(self):
             max_runs_reached = self.max_runs_reached()
 
             dag_parsing_stat = DagParsingStat(
-                self._file_paths,
+                len(self._file_paths),
                 max_runs_reached,
                 all_files_processed,
             )
-            self._signal_conn.send(dag_parsing_stat)
+            try:
+                self._signal_conn.send(dag_parsing_stat)

Review comment:
       On Linux these are AF_UNIX sockets too, so even harder to get it to not 
get instant fail/success in non-blocking mode I think 




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