deniskuzZ commented on code in PR #5628:
URL: https://github.com/apache/hive/pull/5628#discussion_r1979286991


##########
ql/src/java/org/apache/hadoop/hive/ql/metadata/Hive.java:
##########
@@ -5839,13 +5840,30 @@ public HiveMetaHook getHook(
       }
     };
 
+    if ("rest".equals(conf.get("metastore.type", "hms"))) {
+      return getHiveIcebergRESTCatalog(conf);
+    }
+
     if (conf.getBoolVar(ConfVars.METASTORE_FASTPATH)) {
       return new SessionHiveMetaStoreClient(conf, hookLoader, allowEmbedded);
     } else {
       return RetryingMetaStoreClient.getProxy(conf, hookLoader, 
metaCallTimeMap,
           SessionHiveMetaStoreClient.class.getName(), allowEmbedded);
     }
   }
+  private IMetaStoreClient getHiveIcebergRESTCatalog(HiveConf conf) throws 
MetaException {
+    try {
+      Class<? extends IMetaStoreClient> handlerClass =
+          (Class<? extends IMetaStoreClient>)
+              
Class.forName("org.apache.iceberg.hive.HiveIcebergRESTCatalogClientAdapter", 
true, Utilities.getSessionSpecifiedClassLoader());
+      IMetaStoreClient restCatalogMetastoreClient = 
ReflectionUtils.newInstance(handlerClass, conf);
+      restCatalogMetastoreClient.reconnect();
+      return restCatalogMetastoreClient;

Review Comment:
   i think the time has come for HIVE-12679. We should start a new discussion 
and proceed with the approach with more +1 votes.



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