diff --git a/fe/be-java-extensions/jdbc-scanner/src/main/java/org/apache/doris/jdbc/JdbcDataSourceConfig.java b/fe/be-java-extensions/jdbc-scanner/src/main/java/org/apache/doris/jdbc/JdbcDataSourceConfig.java
index dcf576986fef53..5fdbc211ab0161 100644
--- a/fe/be-java-extensions/jdbc-scanner/src/main/java/org/apache/doris/jdbc/JdbcDataSourceConfig.java
+++ b/fe/be-java-extensions/jdbc-scanner/src/main/java/org/apache/doris/jdbc/JdbcDataSourceConfig.java
@@ -30,11 +30,11 @@ public class JdbcDataSourceConfig {
     private int batchSize;
     private TJdbcOperation op;
     private TOdbcTableType tableType;
-    private int connectionPoolMinSize;
-    private int connectionPoolMaxSize;
-    private int connectionPoolMaxWaitTime;
-    private int connectionPoolMaxLifeTime;
-    private boolean connectionPoolKeepAlive;
+    private int connectionPoolMinSize = 1;
+    private int connectionPoolMaxSize = 10;
+    private int connectionPoolMaxWaitTime = 5000;
+    private int connectionPoolMaxLifeTime = 1800000;
+    private boolean connectionPoolKeepAlive = false;
 
     public String createCacheKey() {
         return catalogId + jdbcUrl + jdbcUser + jdbcPassword + jdbcDriverUrl + jdbcDriverClass