Hi, I have a performance issue when I query HBase from Hive. My idea is to build the scenario below: 1. Collect data in hbase for aggregation purpose 2. Create an external table that map Hive to Hbase 3. Create a real Hive table 4. Periodically transfer data from hbase to Hive through "INSERTO INTO <real hive table> SELECT * FROM <external table> WHERE time = 201305212909"
Currently I'm doing a test on a Hbase table that has 70,000,000 rows and I'm trying to query this table with a single column value filter, like the query above. If I try this type of query directly in Hbase the response time is around 80 seconds. If I try the query in Hive shell, after 30 minutes, all the tasks (9 in my case) are 0,00% complete. Which could be the problem? thanks Mario
