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External NuGet feed credentials appear to be cached #2959

michaelnoonan opened this issue Nov 28, 2016 · 4 comments


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commented Nov 28, 2016

Split out from #2926

After investigating this will not be an easy problem to solve. At the moment it looks like the culprit is how the NuGet libraries reuse the same HttpClient instance, and we have no way to "dump the cache" and start afresh without restarting the Octopus Server.


When you update the credentials for an external NuGet feed in Octopus Server, the changes don't appear to take effect until you restart Octopus Server. This is confusing customers when they are trying to configure external NuGet feeds, or update credentials. We even have one report of a customer having problems when attempting to change the scheme of the URL from http to https.


Steps to Reproduce

This occurs in Octopus 3.4 and 3.5, and may be reproducible in Octopus 3.3 and earlier but this is yet to be confirmed.

  1. Create an external NuGet feed to an authenticated feed, but using incorrect credentials.
  2. Test the feed and it should fail with 401 Unauthorized
  3. Fix the credentials and the test will (surprisingly) fail with 401 Unauthorized
    a. Taking a fiddler trace reveals the "old credentials" are still sent on the Authorization header even though the "new credentials" are set correctly on the HttpClient handler.
  4. Restart the Octopus Server.
  5. Try the test again and it will succeed.
    b. Taking a fiddler trace reveals the "new credentials" are now being sent in the Authorization header.


Confirmed by

Option 1: Get the external feed configuration perfect first-time.

Option 2: Restart the Octopus Server after making configuration changes.

  1. Configure the external feed with the correct URL and credentials
  2. Restart the Octopus Server
  3. The new credentials should take effect

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commented Nov 29, 2016

Workaround: Restart the server


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commented Feb 1, 2017

Release Note: Credentials are no longer cached for NuGet feeds


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commented Nov 25, 2018

This thread has been automatically locked since there has not been any recent activity after it was closed. If you think you've found a related issue, please contact our support team so we can triage your issue, and make sure it's handled appropriately.

@lock lock bot locked as resolved and limited conversation to collaborators Nov 25, 2018
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