[jira] [Created] (KYLIN-895) Add "retension" attribute for cube instance, and automatically drop the oldest segment when exceeds retension

["Shaofeng SHI (JIRA)" <ji...@apache.org>]

Shaofeng SHI created KYLIN-895:
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             Summary: Add "retension" attribute for cube instance, and automatically drop the oldest segment when exceeds retension
                 Key: KYLIN-895
                 URL: https://issues.apache.org/jira/browse/KYLIN-895
             Project: Kylin
          Issue Type: Improvement
          Components: Metadata
    Affects Versions: v0.8.1
            Reporter: Shaofeng SHI
            Assignee: Shaofeng SHI
             Fix For: v0.8.1


Sometimes user want to only keep a certain range data in cube, for example only 1 month; Kylin should allow define such a "retension" at cube instance level; When a new segment is built, check and drop the oldest segment from the head if the "retension" is exceeded;



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