Summary

The enterprise application developed by the developers may be distributed over the network. These distributed applications may have dependencies. Under normal conditions, these dependencies can be fetched successfully. However, sometimes, these dependencies may fail, causing the failure of the application due to various reasons. In this chapter, we discussed the Hystrix framework that enables developers to control the interactions between the distributed services along with additional support for latency and fault tolerance. We discussed the working of Hystrix using HystrixCommand or HystrixObservableCommand to present the request we are making to the dependency using the execute(), queue(), observe(), and toObservables() methods. However, due to network problems, increase in the load on service, timeout, and thread pool rejection, these methods may throw an exception...