040000 tree 3cdd13d89a4cb9babee5e7c68f7ddbb66e0d5977	cdh
040000 tree a8c4269f55837ef5922546d18d05f05dca02ce35	spark_mesos
040000 tree 15f4f7d642a42033c90040cee1e401ec954c49bd	spark_standalone
040000 tree be9fbe6f7d228ce7a63b0d2feadbdce98d3f8e8e	spark_yarn_cluster