morningman opened a new issue, #17947:
URL: https://github.com/apache/doris/issues/17947

   ### Search before asking
   
   - [X] I had searched in the 
[issues](https://github.com/apache/doris/issues?q=is%3Aissue) and found no 
similar issues.
   
   
   ### Description
   
   Currently, if user modify the file on hdfs directly, no through hive. The 
changes of file will not be noticed by Doris and user
   will get wrong data.
   
   One approach is to refresh the catalog at fixed rate. But this will have to 
refresh all catalog and invalidate all caches.
   
   So I suggest to set TTL(Time-to-Live) config of File Cache, so that the 
stale file info will be invalidated automatically
   after expiring.
   
   ### Use case
   
   1. create catalog with new property
   ```
   create catalog hive(
   ...,
   "file_meta_cache_ttl_second" = "60"
   );
   
   And file cache of all tables in this catalog will be expired after 60 
seconds.
   You can also set `file_meta_cache_ttl_second` to 0 to disable file cache.
   
   ### Related issues
   
   _No response_
   
   ### Are you willing to submit PR?
   
   - [ ] Yes I am willing to submit a PR!
   
   ### Code of Conduct
   
   - [X] I agree to follow this project's [Code of 
Conduct](https://www.apache.org/foundation/policies/conduct)
   


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