I just set up a Heroku Standard Dyno connected to Mlab M1 dedicated cluster and am seeing high response times in New Relic for some calls.

Digging a bit into New Relic's transaction trace I notice a component called Middleware: anonymous thats taking up 82% of the request.

Transaction Trace

Anyone have any ideas what that could be or a way to maybe try to debug this.. the connections between the dyno and mlab is quite fast.


  • Even I am getting the same error. – Ankur140290 Aug 26 '16 at 12:05

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