Cribbee commented on PR #9707:
URL: https://github.com/apache/paimon/pull/9707#issuecomment-5632973030

   Thanks for the review and merge.
   
   For additional context, the production failure was observed on HDFS during a 
lookup join refresh. `FileIO#exists` threw an `IOException` while checking:
   
   ```
   hdfs://<nameservice>/<warehouse>/<table>/snapshot/snapshot-2
   ```
   
   `SnapshotManager` wrapped the failure in a `RuntimeException`. The snapshot 
was confirmed to exist, and the same lookup succeeded without data or code 
changes after HDFS recovered. This is consistent with a transient HDFS 
availability failure rather than a missing snapshot. The available log excerpt 
did not include the concrete `IOException` subtype.
   
   Interrupt-path coverage has been added in #9745.


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