DongLiang-0 commented on code in PR #474:
URL: 
https://github.com/apache/doris-flink-connector/pull/474#discussion_r1724807002


##########
flink-doris-connector/src/main/java/org/apache/doris/flink/connection/SimpleJdbcConnectionProvider.java:
##########
@@ -42,7 +42,7 @@ public SimpleJdbcConnectionProvider(DorisConnectionOptions 
options) {
 
     @Override
     public Connection getOrEstablishConnection() throws 
ClassNotFoundException, SQLException {
-        if (connection != null && !connection.isClosed() && 
connection.isValid(10000)) {

Review Comment:
   Because the unit here is seconds.



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