Holly Cummins

Senior Technical Staff Member @IBM Garage

Holly Cummins is the worldwide development practice lead for the IBM Garage. As part of the Garage, Holly delivers technology-enabled innovation to clients across a range of industries, from banking to catering to retail to NGOs. She has led projects to count fish, help a blind athlete run ultra-marathons in the desert solo, improve health care for the elderly, and change how city parking works. Holly is also an Oracle Java Champion, IBM Q Ambassador, and JavaOne Rock Star. Before joining the IBM Garage, she was Delivery Lead for the WebSphere Liberty Profile (now Open Liberty). Holly co-authored Manning’s Enterprise OSGi in Action. She is an active speaker and has spoken at JavaOne, Devoxx, Sonar+D, JavaZone, JFokus, The ServerSide Java Symposium, GOTO, JAX London, QCon, GeeCon, and the Great Indian Developer Summit, as well as a number of user groups.  

Before joining IBM, Holly completed a DPhil in Quantum Computation.

Find Holly Cummins at:


7 Ways To Fail at Microservices

We all know the promise of microservices - organizational, agility, decoupling, pizza lunches, autonomy, fewer meetings. Some organizations actually achieve this. Others … don’t.

It turns out dividing an application up across multiple containers isn’t enough. Distributed is not a synonym for decoupled. A decomposed application may just be a health hazard. Cloud-native spaghetti isn’t something you want. Continuous deployment doesn’t mean ‘every six months’. And have you spoken to your release board and QA team about all this?

Here are some of the anti-patterns Holly will discuss:

  • The murky goal
  • Microservices envy
  • Cloud native spaghetti
  • The enterprise hairball, or “forgetting the back, front, and glue”
  • The not-actually-continuous continuous integration and deployment
  • The someday automation
  • The not-actually-cloudy cloud


Tuesday Nov 2 / 09:00AM PDT (40 minutes)


Microservice Patterns and Antipatterns: Lessons From the Trenches

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