Is there a way to access hive metastore tables from HCATALOG?

Question

In my application, I am using hive metastore(mysql) from JDBC. Now the requirement got changed and I won't be able to get metastore credentials. Hence I can't use JDBC to access metastore.

I wanted to know, Is there a way to access hivemetastore tables like TBLS and INDXS from HCATALOG? Thanks in advance.

Answer 1

You can probably get most of the information you need through HCatalog, without direct access to the metastore tables.

HiveConf conf = new HiveConf(); // should pull hive-site.xml automatically
HiveMetaStoreClient hiveClient = new HiveMetaStoreClient(conf);
Table hiveTable = HCatUtil.getTable(hiveClient, "default", "sometable");

... = hiveTable.getAllIndexes(max);

Answer 2

Yes, that's what HCatalog is all about: access and manipulate the metastore. See SHOW TABLES.