ApiError Duplicate key


when I go to Alerts -> Notifications I get the following error:
Could not retrieve available alert notifications

Fetching available alert notification types failed with status: cannot GET (500)

Then I go to the REST API browser to the function “/alerts/callback/types” and get back this Response:
“type”: “ApiError”,
“message”: “Duplicate key siser01”

What can I do to solve this?
Graylog is latest (2.4.4), everything else works fine.

Thanks in advance,


This looks like a bug in Graylog.

Please create a bug report at https://github.com/Graylog2/graylog2-server/issues and include the following information:

  • A complete list of installed plugins and their versions (see System / Nodes / Details and they’re also logged on startup)
  • The complete logs of your Graylog node(s) – at least from around the time the error occurred
  • The contents of the “alarmcallbackconfigurations” collection in MongoDB (see https://docs.mongodb.com/manual/reference/program/mongoexport/)

this is the bug number:



1 Like


the problem is solved.
I deleted the duplicate user siser01 (in Graylog) and the user was gone in MongoDB.
Now the problem with Alerts -> Notifications is gone. :grinning:




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