Fix pooled connection re-use on access token expiry - #635
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cheenamalhotra
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Hi, |
Contributor
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@PouyaPanahy, If your case matches the underlying issue, yes. (AAD Integrated Authentication uses access tokens.) |
This was referenced Aug 11, 2026
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Fixes #617
When federated authentication mode is used, the driver continues to re-use pooled connection even if associated access token is expired. This leads to failures on client environments when Azure DB re-validates credentials after 10 hours (as of now), and physical connection ends up no longer usable.
This PR fixes the behavior and does not let the pooled connection be re-used again if associated access token is due expire soon.
NuGet package for testing is available here:
https://dev.azure.com/sqlclientdrivers-ci/sqlclient/_build/results?buildId=13352&view=artifacts&type=publishedArtifacts