public static long getSizeVar(Configuration conf, ConfVars var) {
    return SizeValidator.toSizeBytes(getVar(conf, var));
  }
Set the variable as a double
@param conf configuration file to set it in
@param var variable to set
@param val value to set it to
standalone-metastore/metastore-common/src/main/java/org/apache/hadoop/hive/metastore/conf/MetastoreConf.java