@Override
    public OperationHandle getPrimaryKeys(SessionHandle sessionHandle,
      String catalog, String schema, String table)
      throws HiveSQLException {
      return cliService.getPrimaryKeys(sessionHandle, catalog, schema, table);
    }
RetryingThriftCLIServiceClient. Creates a proxy for a CLIServiceClient
implementation and retries calls to it on failure.
service/src/java/org/apache/hive/service/cli/thrift/RetryingThriftCLIServiceClient.java