[Improve][Connector-V2] Random pick the starrocks fe address which can be connected (#8898)

Author: xiaochen-zhou

Diff for: seatunnel-connectors-v2/connector-starrocks/src/main/java/org/apache/seatunnel/connectors/seatunnel/starrocks/client/source/StarRocksQueryPlanReadClient.java

@@ -35,6 +35,7 @@
 
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
@@ -140,6 +141,8 @@ private Map<String, List<Long>> selectBeForTablet(QueryPlan queryPlan) {
     private QueryPlan getQueryPlan(String querySQL, String table) {
 
         List<String> nodeUrls = sourceConfig.getNodeUrls();
+        // shuffle nodeUrls to ensure support for both random selection and high availability
+        Collections.shuffle(nodeUrls);
         Map<String, Object> bodyMap = new HashMap<>();
         bodyMap.put("sql", querySQL);
         String body = JsonUtils.toJsonString(bodyMap);