Querying an existing Kudu table from Impala
Tables created through the Kudu API or other integrations such as Apache Spark are not automatically visible in Impala.
To query
them, you must first create an external table within Impala to map the Kudu table into an
Impala database:
CREATE EXTERNAL TABLE my_mapping_table
STORED AS KUDU
TBLPROPERTIES (
'kudu.table_name' = 'my_kudu_table'
);