Addressing the challenges of delivering Microservice applications in the enterprise by "Sathishkanth Swarna" from "BMC". The presentation was done at #doppa17 DevOps++ Global Summit 2017. All the copyrights are reserved with the author

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Microservice | Challenges in delivering microservice
applications in enterprise
9th September 2017 Sathish Kanth

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What Are Microservices?
Autonomous Service
Encapsulates a scenario organized around business capabilities
Contain code plus state
Independently versioned, deployed and scaled
Interact with other microservices over well defined interfaces
Uses protocols such as http/rest
Remains consistent and available in the presence of failures

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Simple Architecture explaining both Application types

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Challenge 1:
How to handle changing deployment patterns?
 Delivery-Management complexity moves from within Application itself to
external relationship between services.
 Standardized Platforms and decentralization of Data Management.
 CI and CD pipelines.
 Phased Rollout
 To make best of microservice, a single overview of deployment
dependencies and configuration is needed, with deployment tools handling
multiple deployment simultaneously. This allows microservice deployment
tool to offer speed and efficiency.

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Challenge 2:
How to deal with dependencies between services?
 Track dependencies – More the component, more the complexity. A missed
dependency fails the system and difficult to track the source of the issue.
 Cascading failure effect
Netflix uses Chaos Monkey to force failure in the system
 Monitoring and Logging – Alerts
Threshold limits
Response time at endpoints
 With plenty of manual task to handle as we approach to production, its
important to use tooling that can support manual activities too.

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Challenge 3:
How to avoid getting stuck with wrong implemented
technology?
 Buzz word Docker – Docker is a great solution for many situations but are we
sure of its drawback
 Reality of committing new technology is a gamble – Key factor “Changing
Market”
 Need to ensure tooling and process work seamlessly regarding the
underlying technology.
 Keep implementation options open and flexible until a mature solutions is
derived.

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Microservices are not a Panacea

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Take Way:
 Even though building complex applications is inherently difficult, A
Monolithic architecture better suits simple, lightweight applications.
 DevOps need to be adopted
 Require sufficient tools to handle the dependency and complexity
 Conway’s Law…….