Fix case when the pidfile is empty during the pidfile check (#8462)

apache · Apr 20, 2020 · f4faed6 · f4faed6
1 parent 5d3a7ee
commit f4faed6
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/airflow/utils/process_utils.py b/airflow/utils/process_utils.py
@@ -270,6 +270,8 @@ def check_if_pidfile_process_is_running(pid_file: str, process_name: str):
     if pid_lock_file.is_locked():
         # Read the pid
         pid = pid_lock_file.read_pid()
+        if pid is None:
+            return
         try:
             # Check if process is still running
             proc = psutil.Process(pid)