xicm commented on code in PR #7068:
URL: https://github.com/apache/hudi/pull/7068#discussion_r1007668806


##########
hudi-sync/hudi-hive-sync/src/main/java/org/apache/hudi/hive/HiveSyncConfig.java:
##########
@@ -108,45 +108,45 @@ public static class HiveSyncConfigParams {
             + "instead of org.apache.hudi package. Use this when you are in 
the process of migrating from "
             + "com.uber.hoodie to org.apache.hudi. Stop using this after you 
migrated the table definition to "
             + "org.apache.hudi input format.")
-    public Boolean usePreApacheInputFormat;
+    public boolean usePreApacheInputFormat;
     @Deprecated
-    @Parameter(names = {"--use-jdbc"}, description = "Hive jdbc connect url")
-    public Boolean useJdbc;
+    @Parameter(names = {"--use-jdbc"}, description = "Hive jdbc connect url", 
arity = 1)
+    public Boolean useJdbc = true;
     @Parameter(names = {"--metastore-uris"}, description = "Hive metastore 
uris")
     public String metastoreUris;
     @Parameter(names = {"--sync-mode"}, description = "Mode to choose for Hive 
ops. Valid values are hms,glue,jdbc and hiveql")
     public String syncMode;
-    @Parameter(names = {"--auto-create-database"}, description = "Auto create 
hive database")
-    public Boolean autoCreateDatabase;
+    @Parameter(names = {"--auto-create-database"}, description = "Auto create 
hive database", arity = 1)
+    public boolean autoCreateDatabase = true;
     @Parameter(names = {"--ignore-exceptions"}, description = "Ignore hive 
exceptions")
-    public Boolean ignoreExceptions;
+    public boolean ignoreExceptions;

Review Comment:
   @xushiyan The change of the default value is a problem. 
   Double check with you, is it ok to do like this
   ```boolean useJdbc = Boolean.parseBoolean(HIVE_USE_JDBC.defaultValue());```
   
   That means for boolean params we must pass "--key true/false" instead of 
"--key" if we want to overwrite the default value.



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