************************** Tajo Master Configuration ************************** ================================================ Tajo Rootdir ================================================ Tajo uses HDFS as a primary storage layer. So, one Tajo cluster instance should have one tajo rootdir. A user is allowed to specific your tajo rootdir as follows: .. code-block:: xml tajo.rootdir hdfs://namenode_hostname:port/path Tajo rootdir must be a url form like ``scheme://hostname:port/path``. The current implementaion only supports ``hdfs://`` and ``file://`` schemes. The default value is ``file:///tmp/tajo-${user.name}/``. ================================================ TajoMaster Heap Memory Size ================================================ The environment variable TAJO_MASTER_HEAPSIZE in conf/tajo-env.sh allow Tajo Master to use the specified heap memory size. If you want to adjust heap memory size, set ``TAJO_MASTER_HEAPSIZE`` variable in ``conf/tajo-env.sh`` with a proper size as follows: .. code-block:: sh TAJO_MASTER_HEAPSIZE=2000 The default size is 1000 (1GB).