apache/hadoop · error · HttpException

AADToken: HTTP connection to {} failed for getting token fro

Error message

AADToken: HTTP connection to {} failed for getting token from AzureAD.

What it means

Error "AADToken: HTTP connection to {} failed for getting token from AzureAD." thrown in apache/hadoop.

Source

Thrown at hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/oauth2/AzureADAuthenticator.java:504

                        + (responseBody.isEmpty()
                          ? ""
                          : ("\nFirst 1K of Body: " + responseBody));
        LOG.debug(logMessage);
        if (httpResponseCode == HttpURLConnection.HTTP_OK) {
          // 200 is returned by some of the sign-on pages, but can also
          // come from proxies, utterly wrong URLs, etc.
          throw new UnexpectedResponseException(httpResponseCode,
              requestId,
              operation
                  + " Unexpected response."
                  + " Check configuration, URLs and proxy settings."
                  + " proxies=" + proxies,
              authEndpoint,
              responseContentType,
              responseBody);
        } else {
          // general HTTP error
          throw new HttpException(httpResponseCode,
              requestId,
              operation,
              authEndpoint,
              responseContentType,
              responseBody);
        }
      }
    } finally {
      if (conn != null) {
        conn.disconnect();
      }
    }
    return token;
  }

  private static AzureADToken parseTokenFromStream(
      InputStream httpResponseStream, boolean isMsi) throws IOException {
    AzureADToken token = new AzureADToken();

View on GitHub (pinned to 2add963021)

Solutions

1. Check network connectivity to the Azure AD token endpoint.
2. Verify proxy settings and firewall rules allow outbound HTTPS to login.microsoftonline.com.
3. Retry after resolving transient network issues.

When it happens

Trigger: The HTTP connection to Azure AD fails outright (DNS, TLS, connectivity) while fetching an access token.

Common situations: See trigger scenarios.

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/7cd63c25ad2ae05a. Report an issue: GitHub.