Apache Pulsar in Action

9 Resiliency patterns

This chapter covers

• Making your Pulsar Functions-based applications resilient to adverse events

• Implementing well-established resiliency patterns using Pulsar Functions

As the architect of the GottaEat order entry microservice, your primary goal is to develop a system that can accept incoming food orders from customers 24 hours a day, 7 days a week, and within a response time acceptable to the customer. Your system must be available at all times; otherwise, your company will not only lose revenue and customers, but its reputation will suffer as well. Therefore, you must design your system to be both highly available and resilient to provide continuity of service. Everyone wants their systems to be resilient, but what ...