In the cube design, the COUNT_DISTINCT indicator USES the global dictionary.
When building a cube, a dictionary file is generated at HDFS, and the
corresponding directory is:
"/ resources/GlobalDict/dict/database. The tableName/column/", at the same time
will generate metadata information in hbase metadata, metadata in the hbase
rowkey information:"/dict/database. The tableName/column/". The value
information specifies the corresponding HDFS path.
The problem is that the corresponding HDFS data and hbase data are not deleted
when the cube is deleted. Another HDFS data path and hbase metadata rowkey
information did not specify the concrete cube, if a table column in more than
one cube is to use global dictionary, can lead to multiple share a dictionary
data cube
