[KYLIN-4118] SegmentQueryCache never evicted even it is useless

• Type: Wish
• Status: Closed
• Priority: Minor
• Resolution: Not A Problem
• Affects Version/s: all
• Fix Version/s: Backlog
• Component/s: Query Engine
• Assignee: Unassigned
• Reporter: Xiaoxiang Yu
• Created: 29/Jul/19 12:58
• Updated: 30/Jul/19 04:37
• Resolved: 30/Jul/19 04:37

Description

In SegmentQueryCache.java, we find its evict method is never called, which seems to be unreasonable. SegmentQueryResult is often large, this may has risk to occupy too much space of memcached.

https://issues.apache.org/jira/browse/KYLIN-2899