alamb commented on PR #781: URL: https://github.com/apache/arrow-rs-object-store/pull/781#issuecomment-4920033433
> Notably the other backends do **not** make an uncached network call while signing: the AWS signer signs locally from its cached credential, and GCP caches its signing credentials. Azure is the outlier — it makes a `GetUserDelegationKey` call on top of the already-cached AAD token. Agreed -- they use TokenCache S3: https://github.com/apache/arrow-rs-object-store/blob/09adc41b05faada6b233746d866e0ab63a56f208/src/aws/credential.rs#L759 GCP: https://github.com/apache/arrow-rs-object-store/blob/09adc41b05faada6b233746d866e0ab63a56f208/src/client/mod.rs#L1053 -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
