WingsGo commented on issue #3402:
URL: 
https://github.com/apache/incubator-doris/issues/3402#issuecomment-621145565


   @morningman I found that CheckDataSizeQuota will only check by logic but not 
check by real disk usage.I have some questions:
   1. One solution is get real disk space avaliable group by storage medium, 
and check is there are avaliable space for specify storage medium  when create 
or alter table/partition, But the solution has a problem that it may cannot 
constrain the existing partition, and I don't know if the already exist 
partition exceed the limit cause by data loading, how doris deal with it or 
just ignore the situation, because stream load also doesn't limited by the db 
quota in fact.
   2. should we refacor the checkDataSizeQuota logic to limit the quota by real 
usage?And if the real disk space is not insufficient, how doris deal with it?


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