PYTHON-4261 Reduce verbosity of "Waiting for suitable server to become available" log message (#1656)

doc/changelog.rst

@@ -17,6 +17,7 @@ Version 4.7.3 has further fixes for lazily loading modules.
 
 - Use deferred imports instead of importlib lazy module loading.
 - Improve import time on Windows.
+- Reduce verbosity of "Waiting for suitable server to become available" log message from info to debug.
 
 Issues Resolved
 ...............

pymongo/topology.py

@@ -44,7 +44,6 @@ from pymongo.lock import _create_lock
 from pymongo.logger import (
     _SERVER_SELECTION_LOGGER,
     _debug_log,
-    _info_log,
     _ServerSelectionStatusMessage,
 )
 from pymongo.monitor import SrvMonitor
@@ -306,7 +305,7 @@ class Topology:
                 )
 
             if not logged_waiting:
-                _info_log(
+                _debug_log(
                     _SERVER_SELECTION_LOGGER,
                     message=_ServerSelectionStatusMessage.WAITING,
                     selector=selector,

test/server_selection_logging/operation-id.json

@@ -194,7 +194,7 @@
               }
             },
             {
-              "level": "info",
+              "level": "debug",
               "component": "serverSelection",
               "data": {
                 "message": "Waiting for suitable server to become available",

test/server_selection_logging/replica-set.json

@@ -184,7 +184,7 @@
               }
             },
             {
-              "level": "info",
+              "level": "debug",
               "component": "serverSelection",
               "data": {
                 "message": "Waiting for suitable server to become available",

test/server_selection_logging/sharded.json

@@ -193,7 +193,7 @@
               }
             },
             {
-              "level": "info",
+              "level": "debug",
               "component": "serverSelection",
               "data": {
                 "message": "Waiting for suitable server to become available",

test/server_selection_logging/standalone.json

@@ -211,7 +211,7 @@
               }
             },
             {
-              "level": "info",
+              "level": "debug",
               "component": "serverSelection",
               "data": {
                 "message": "Waiting for suitable server to become available",