[KYLIN-1526] Move query cache back to query controller level

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: v1.5.2
• Assignee: Hongbin Ma
• Reporter: Hongbin Ma
• Created: 23/Mar/16 03:29
• Updated: 26/May/16 09:16
• Resolved: 21/Apr/16 11:21

Description

from https://issues.apache.org/jira/browse/KYLIN-671, https://issues.apache.org/jira/browse/KYLIN-836 we introduced a storage level cache to take care of dynamic storages like Inverted Index (dynamic storage keeps refreshing all the time)

however the II approach is not very popular since invented. And a storage level cache is too heavy&complex and problematic(see https://issues.apache.org/jira/browse/KYLIN-1522) for the more most commonly used "static" cube storage engine. Thus I'd suggest to go back to before KYLIN-671 and simply use a controller level cache.