XJDKC commented on issue #4711:
URL: https://github.com/apache/polaris/issues/4711#issuecomment-4746744897
1. Catalog Federation doesn't leverage the creds cache for now, if we cache
the session credentials, we won't send many sts calls to fetch the creds, I
have a local branch for it (unifying the behavior of catalog access and storage
access), but hasn't got a chance to clean it up
2. We should not use same credential for accessing the catalog and storage,
several reasons:
* End users may use different role for catalog access
* When accessing the storage, we subscope the creds to table level based
on the RBAC rules, this credential only has access to the storage.
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