Bulkhead.md

Bulkhead

• Motivation
• Solution
  • Concepts
  • Implementation
• Pros & Cons
  • Pros
  • Cons
• Consideration
• When To Use
• References

Motivation

Solution

Concepts

• Isolate the misbehaving service and avoid to take down the entire application by exhausting all the resources.

Implementation

Partitioning Strategies

• Types
  • Partition service instances: Ensure that resources used to run one service instance don't affect the resources used to run another service instance.
• Technologies
  • Partition clients: Ensure that resources used to call one service don't affect the resources used to call another service.
• Technologies
  • For partitioning services, consider to use:
    • Virtual machines
    • Containers
    • Processes
  • For partitioning clients, consider to use
    • Processes
    • Thread pools
    • Semaphores

Pros & Cons

Pros

• Preserve some functionality in the event of a service failure.

Cons

Consideration

Topic	Consideration	Possible Solution Options

When To Use

References

• Web Article: Bulkhead pattern | https://docs.microsoft.com/en-us/azure/architecture/patterns/bulkhead
• Web Article: Preventing Systemic Failure: Bulkheads in Microservice Architectures | https://dzone.com/articles/preventing-systemic-failure-bulkheads-in-microserv
• Book: Michael N.(2018). Chapter 5 Stability Patterns, Release It! (pp. 91-128). Pragmatic Bookshelf