diff --git a/src/main/java/com/amazon/dlic/auth/ldap/util/ConfigConstants.java b/src/main/java/com/amazon/dlic/auth/ldap/util/ConfigConstants.java
index 12366daf82..8fa746f853 100755
--- a/src/main/java/com/amazon/dlic/auth/ldap/util/ConfigConstants.java
+++ b/src/main/java/com/amazon/dlic/auth/ldap/util/ConfigConstants.java
@@ -83,6 +83,9 @@ public final class ConfigConstants {
 
     public static final String LDAP_POOL_TYPE = "pool.type";
 
+    public static final String LDAP_LEGACY_POOL_PRUNING_PERIOD = "pruning.period";
+    public static final String LDAP_LEGACY_POOL_IDLE_TIME = "pruning.idleTime";
+
     public static final String LDAP_POOL_PRUNING_PERIOD = "pool.pruning_period";
     public static final String LDAP_POOL_IDLE_TIME = "pool.idle_time";
 
diff --git a/src/main/java/com/amazon/dlic/auth/ldap2/LDAPConnectionFactoryFactory.java b/src/main/java/com/amazon/dlic/auth/ldap2/LDAPConnectionFactoryFactory.java
index 74d8989ae3..b61450359b 100644
--- a/src/main/java/com/amazon/dlic/auth/ldap2/LDAPConnectionFactoryFactory.java
+++ b/src/main/java/com/amazon/dlic/auth/ldap2/LDAPConnectionFactoryFactory.java
@@ -60,11 +60,14 @@
 import com.amazon.dlic.util.SettingsBasedSSLConfigurator;
 import com.amazon.dlic.util.SettingsBasedSSLConfigurator.SSLConfigException;
 
+import org.opensearch.common.logging.DeprecationLogger;
 import org.opensearch.common.settings.Settings;
 
 public class LDAPConnectionFactoryFactory {
 
     private static final Logger log = LogManager.getLogger(LDAPConnectionFactoryFactory.class);
+    private static final DeprecationLogger deprecationLogger = DeprecationLogger.getLogger(LDAPConnectionFactoryFactory.class);
+
 
     private final Settings settings;
     private final SettingsBasedSSLConfigurator.SSLConfig sslConfig;
@@ -127,10 +130,13 @@ public ConnectionPool createConnectionPool() {
         }
 
         result.setValidator(getConnectionValidator());
+
+        LDAPConnectionFactoryFactory.checkForDeprecatedSetting(settings, ConfigConstants.LDAP_LEGACY_POOL_PRUNING_PERIOD, ConfigConstants.LDAP_POOL_PRUNING_PERIOD);
+        LDAPConnectionFactoryFactory.checkForDeprecatedSetting(settings, ConfigConstants.LDAP_LEGACY_POOL_IDLE_TIME, ConfigConstants.LDAP_POOL_IDLE_TIME);
           
         result.setPruneStrategy(new IdlePruneStrategy(
-            Duration.ofMinutes(this.settings.getAsLong(ConfigConstants.LDAP_POOL_PRUNING_PERIOD, this.settings.getAsLong("pruning.period", 5l))),
-            Duration.ofMinutes(this.settings.getAsLong(ConfigConstants.LDAP_POOL_IDLE_TIME, this.settings.getAsLong("pruning.idleTime", 10l))))
+            Duration.ofMinutes(this.settings.getAsLong(ConfigConstants.LDAP_POOL_PRUNING_PERIOD, this.settings.getAsLong(ConfigConstants.LDAP_LEGACY_POOL_PRUNING_PERIOD, 5l))),
+            Duration.ofMinutes(this.settings.getAsLong(ConfigConstants.LDAP_POOL_IDLE_TIME, this.settings.getAsLong(ConfigConstants.LDAP_LEGACY_POOL_IDLE_TIME, 10l))))
         );
 
         result.initialize();
@@ -138,6 +144,15 @@ public ConnectionPool createConnectionPool() {
         return result;
     }
 
+    /**
+     * Checks for an deprecated key found in a setting, logs that it should be replaced with the another key
+     */
+    private static void checkForDeprecatedSetting(final Settings settings, final String legacySettingKey, final String validSettingKey) {
+        if (settings.hasValue(legacySettingKey)) {
+            deprecationLogger.deprecate(legacySettingKey, "Found deprecated setting '{}', please replace with '{}'", legacySettingKey, validSettingKey);
+        }
+    }
+
     private ConnectionConfig getConnectionConfig() {
         ConnectionConfig result = new ConnectionConfig(getLdapUrlString());