avoid setting logging.basicConfig (#37031)

python/paddle/distributed/fleet/elastic/manager.py

@@ -20,8 +20,13 @@ import logging
 import signal
 import random
 
-logging.basicConfig(level=os.environ.get('LOGLEVEL', 'INFO').upper())
 logger = logging.getLogger("ELASTIC")
+logger.setLevel(logging.INFO)
+formatter = logging.Formatter(
+    fmt='%(name)s %(levelname)s %(asctime)s %(message)s')
+ch = logging.StreamHandler()
+ch.setFormatter(formatter)
+logger.addHandler(ch)
 
 ELASTIC_EXIT_CODE = 101
 

python/paddle/fluid/incubate/fleet/parameter_server/pslib/optimizer_factory.py

@@ -42,9 +42,12 @@ FLEET_GLOBAL_DICT = {
     "scale_sparse_grad": None,
 }
 
-logging.basicConfig(
-    format='%(asctime)s - %(levelname)s - %(message)s', level=logging.INFO)
 logger = logging.getLogger(__name__)
+logger.setLevel(logging.INFO)
+formatter = logging.Formatter(fmt='%(asctime)s - %(levelname)s - %(message)s')
+ch = logging.StreamHandler()
+ch.setFormatter(formatter)
+logger.addHandler(ch)
 
 
 class DistributedOptimizerImplBase(object):