Migrating data to a hive in hbase

Description: the original data is stored in the hbase, but direct access hbase slow (hbase wide-table structure), so that the hive wants to migrate data;

1. First hbase hive and create external links table can be queried directly in the hive;

2. The tables created by the external, internal table created directly in the hive;

Directly on the code:

# Create a hive external table links 
the CREATE the EXTERNAL TABLE hbase_table_hive3 (
 Key String, 
field name Double 
) 
STORED BY  ' org.apache.hadoop.hive.hbase.HBaseStorageHandler ' 
the WITH SERDEPROPERTIES 
( "hbase.columns.mapping" = ": Key , the Data: field name ") 
TBLPROPERTIES (" HBase. the table .name " = " table_name "); 

# create a table inside the hive 
the create  the table table_name AS  the SELECT  *  from hbase_table_hive3;
 
# delete the middle of the table
 drop  the table hbase_table_hive3;