Catalog leaks HiveMetaStoreClient connections

   catalogLock_.writeLock().lock();
    synchronized(tbl) {
      long newCatalogVersion = incrementAndGetCatalogVersion();
      catalogLock_.writeLock().unlock();
      MetaStoreClient msClient = getMetaStoreClient();
      org.apache.hadoop.hive.metastore.api.Table msTbl = null;
      try {
        msTbl = msClient.getHiveClient().getTable(db.getName(), tblName.getTable_name());
      } catch (Exception e) {
        throw new TableLoadingException("Error loading metadata for table: " +
            db.getName() + "." + tblName.getTable_name(), e);
      }
      tbl.load(true, msClient.getHiveClient(), msTbl);
      tbl.setCatalogVersion(newCatalogVersion);
      return tbl;
    }