nicknezis commented on code in PR #3819:
URL: https://github.com/apache/incubator-heron/pull/3819#discussion_r859337667


##########
heron/healthmgr/src/java/org/apache/heron/healthmgr/HealthManager.java:
##########
@@ -153,7 +152,6 @@ public HealthManager(Config config, AbstractModule 
baseModule) {
   }
 
   public static void main(String[] args) throws Exception {
-    Slf4jUtils.installSLF4JBridge();

Review Comment:
   This is no longer needed?



##########
heron/tools/tracker/src/python/query_operators.py:
##########
@@ -20,13 +20,17 @@
 
 ''' query_operators.py '''
 import asyncio
+import logging
 import math
 
 from typing import Any, Dict, List, Optional, Union
 
+from heron.common.src.python.utils import log
 from heron.proto.tmanager_pb2 import TManagerLocation
 from heron.tools.tracker.src.python.metricstimeline import get_metrics_timeline
 
+Log = log.Log

Review Comment:
   Were these lines added for your debugging, or was this to correct a 
deficiency in the logging behavior? Does the `--verbose` flag on the Tracker 
process not work in this module?



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