Skip to Main Content

Enterprise Manager

Announcement

For appeals, questions and feedback about Oracle Forums, please email oracle-forums-moderators_us@oracle.com. Technical questions should be asked in the appropriate category. Thank you!

OEM Plugin fails in Grafana Alerting with "Required cookie 'grafana_session' is missing"

sejin leeDec 29 2025

Error Message: [sse.dataQueryError] failed to execute query [A]: Failed to execute the request with error: Required cookie 'grafana_session' is missing.

Version Info

  • grafana version 11.6.4
  • OEM plugin - oracle-emcc-app @ 5.0.0

===============

Hello,
I am experiencing an issue where an OEM plugin query fails execution within the Alerting engine, despite working correctly in dashboard visualizations.

Error Message:
[sse.dataQueryError] failed to execute query [A]: Failed to execute the request with error: Required cookie 'grafana_session' is missing.

Observations:

  • Dashboard Panels: The query works as expected.
  • Alerting: The query fails immediately with the error above.

It appears that the authentication context (session cookie) is not being passed correctly during the server-side alert evaluation.

Could you please advise on the necessary configuration or fix for this?

Thank you.

Comments
Post Details
Added on Dec 29 2025
0 comments
32 views