[FLINK-36405][runtime] Fix startup issues due to Hive delegation toke…

…n on kerberos clusters

Co-authored-by: zhengchenyu001 <[email protected]>

flink-connectors/flink-connector-hive/src/main/java/org/apache/flink/table/security/token/HiveServer2DelegationTokenProvider.java

@@ -136,14 +136,9 @@ public ObtainedDelegationTokens obtainDelegationTokens() throws Exception {
  try {
  LOG.info("Obtaining Kerberos security token for HiveServer2");
 
- String principal =
- hiveConf.getTrimmed(
- "hive.metastore.kerberos.principal", "");
-
- String tokenStr =
- hive.getDelegationToken(
- UserGroupInformation.getCurrentUser().getUserName(),
- principal);
+ String user = UserGroupInformation.getCurrentUser().getUserName();
+ String tokenStr = hive.getDelegationToken(user, user);
+
  Token<HiveServer2DelegationTokenIdentifier> hive2Token =
  new Token<>();
  hive2Token.decodeFromUrlString(tokenStr);

flink-connectors/flink-connector-hive/src/main/resources/META-INF/services/org.apache.hadoop.security.token.TokenIdentifier

@@ -0,0 +1,16 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+org.apache.flink.table.security.token.HiveServer2DelegationTokenIdentifier