morningman opened a new pull request, #17917:
URL: https://github.com/apache/doris/pull/17917

   # Proposed changes
   
   Issue Number: close #xxx
   
   ## Problem summary
   
   When setting FE config `default_storage_medium` to SSD, and set all BE 
storage path as SSD.
   And table will be stored with storage medium SSD.
   But there is a FE config `storage_cooldown_second` and its default value is 
30 days.
   So after 30 days, the storage medium of table will be changed to HDD, which 
is unexpected.
   
   This PR removes the `storage_cooldown_second`, and use a max value to set 
the cooldown time of SSD
   storage medium when the `default_storage_medium` is SSD.
   
   ## Checklist(Required)
   
   * [ ] Does it affect the original behavior
   * [ ] Has unit tests been added
   * [ ] Has document been added or modified
   * [ ] Does it need to update dependencies
   * [ ] Is this PR support rollback (If NO, please explain WHY)
   
   ## Further comments
   
   If this is a relatively large or complex change, kick off the discussion at 
[d...@doris.apache.org](mailto:d...@doris.apache.org) by explaining why you 
chose the solution you did and what alternatives you considered, etc...
   
   


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