[GitHub] [iceberg] pvary commented on issue #6071: Should ClientPool consider UGI when reusing a connection?

[GitBox <gi...@apache.org>]

pvary commented on issue #6071:
URL: https://github.com/apache/iceberg/issues/6071#issuecomment-1305705704

   Sorry for the delay - I was OOO.
   
   Since we are reusing the HMSClient objects, we can face authorization issues if we are using Catalogs with multi-tenant scenarios. We were briefly considering using custom keys for the `CachedClientPool.clientPoolCache`, but at that time decided against it, since we did not see an immediate benefit/use-case. Spark was not reusing the Catalogs, and Hive was using a server side catalog using the HS2 credentials anyway.
   
   This might be a situation where some hash of the bunch of configuration values, or some more specific cache key should be useful.


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