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Posted to issues@kylin.apache.org by GitBox <gi...@apache.org> on 2020/10/20 01:59:43 UTC

[GitHub] [kylin] bigxiaochu commented on pull request #1378: KYLIN-4720 support htable read quota

bigxiaochu commented on pull request #1378:
URL: https://github.com/apache/kylin/pull/1378#issuecomment-712539712


   有个疑问，表级别设置quota的业务意义何在。
   因为查询是跨segment的，也就是跨表，单张表限制quota了，但一次查询可能跨多张表。如果是防止查挂机器，那在ns级别或用户级别设置quota就可以了。
   这么设置有些粗暴，一旦查询失败，如果单个sql超过quota，几乎就不可能成功了，如果要控制查询并发量，应该用其他方式。


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