wuchong commented on a change in pull request #14310:
URL: https://github.com/apache/flink/pull/14310#discussion_r537220712



##########
File path: 
flink-connectors/flink-connector-hive/src/main/java/org/apache/flink/connectors/hive/HiveLookupTableSource.java
##########
@@ -114,16 +117,16 @@ private void validateLookupConfigurations() {
                        Duration monitorInterval = 
configuration.get(STREAMING_SOURCE_MONITOR_INTERVAL) == null
                                        ? DEFAULT_LOOKUP_MONITOR_INTERVAL
                                        : 
configuration.get(STREAMING_SOURCE_MONITOR_INTERVAL);
-                       Preconditions.checkArgument(
-                                       monitorInterval.toMillis() >= 
DEFAULT_LOOKUP_MONITOR_INTERVAL.toMillis(),
-                                       String.format(
-                                                       "Currently the value of 
'%s' is required bigger or equal to default value '%s' " +
-                                                                       "when 
set '%s' to 'latest', but actual is '%s'",
-                                                       
STREAMING_SOURCE_MONITOR_INTERVAL.key(),
-                                                       
DEFAULT_LOOKUP_MONITOR_INTERVAL.toMillis(),
-                                                       
STREAMING_SOURCE_PARTITION_INCLUDE.key(),
-                                                       
monitorInterval.toMillis())
-                       );
+
+                       if (monitorInterval.toMillis() < 
DEFAULT_LOOKUP_MONITOR_INTERVAL.toMillis()) {
+                               LOG.warn(String.format(
+                                       "Currently the recommended value of 
'%s' is bigger than default value '%s' " +

Review comment:
       I agree with @lirui-apache here. 




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