EnableServices opened a new issue, #54414:
URL: https://github.com/apache/airflow/issues/54414

   
https://github.com/apache/airflow/blob/367d8680af355b492f256ab86aa738f9ee292f2f/airflow-core/src/airflow/logging_config.py#L77
   
   The method import_string in utils expects a string containing a dot, but 
following the rework of load_logging_config() it is passed the module name 
alone:
   
   ``` py
       else:
           modpath = logging_class_path.rsplit(".", 1)[0]
           try:
               mod = import_string(modpath)
               REMOTE_TASK_LOG = getattr(mod, "REMOTE_TASK_LOG")
               DEFAULT_REMOTE_CONN_ID = getattr(mod, "DEFAULT_REMOTE_CONN_ID", 
None)
           except Exception as err:
               log.info("Remote task logs will not be available due to an 
error:  %s", err)
   ```
   
   (modpath is just set to log_config here)
   
   The previous code concatenated the REMOTE_TASK_LOG string onto the 
log_config module prior to reading:
   
   ``` py
   else:
           mod = logging_class_path.rsplit(".", 1)[0]
           try:
               remote_task_log = import_string(f"{mod}.REMOTE_TASK_LOG")
               REMOTE_TASK_LOG = remote_task_log
           except Exception as err:
               log.info("Remote task logs will not be available due to an 
error:  %s", err)
   ```
   
   For systems implementing a custom log_config this change prevents the 
triggerer from starting.
   
   Snippet from airflow.cfg:
   
   ``` txt
   [logging]
   logging_config_class = log_config.LOGGING_CONFIG
   ```
   
   config/log_config.py contents:
   
   ``` py
   from copy import deepcopy
   from airflow.config_templates.airflow_local_settings import 
DEFAULT_LOGGING_CONFIG
   
   LOGGING_CONFIG = deepcopy(DEFAULT_LOGGING_CONFIG)
   LOGGING_CONFIG["handlers"]["task"] = {
       "class": 
"airflow.providers.redis.log.redis_task_handler.RedisTaskHandler",
       "conn_id": "redis_default",
       "ttl_seconds": 259200,
       "base_log_folder": "/opt/pyenvs/airflow/logs",
   }
   
   REMOTE_TASK_LOG = None
   ```
   
   


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