safaehar commented on code in PR #68584:
URL: https://github.com/apache/airflow/pull/68584#discussion_r3426817904


##########
airflow-core/tests/unit/jobs/test_triggerer_job.py:
##########
@@ -314,6 +314,31 @@ def fake_run_once(self):
     assert events == ["enter", "tick-1", "tick-2", "tick-3", "exit"]
 
 
[email protected]("json_logs", [True, False])
+def 
test_process_log_messages_configures_logging_matching_json_logs(supervisor_builder,
 mocker, json_logs):
+    """``_process_log_messages_from_subprocess`` must reconfigure structlog 
with the
+    ``logging.json_logs`` setting, not the ``configure_logging`` default of 
``False``.
+
+    Priming this generator calls ``configure_logging()``, which reconfigures 
structlog
+    globally. With ``json_logs=True`` but ``json_output`` left to default 
``False`` the
+    global logger factory becomes the text ``WriteLogger`` while the 
stdout/stderr
+    forwarders emit bytes from the JSON renderer, crashing the triggerer with
+    ``TypeError: can't concat str to bytes`` the first time a trigger 
subprocess writes
+    to stdout/stderr. See the regression where enabling json_logs 
CrashLoopBackOff-ed
+    triggerers running providers that warn at import time.

Review Comment:
   thanks for the review, adressed



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