Monitoring and scaling are two important factors to keep in mind in microservice architecture. They should be thought about at the time of designing microservices. We also understand the reactive monitoring and scaling cube. There are plenty of tools to help an organization to effectively implement monitoring and scaling. We have gone through a number of tools in this chapter. The choice of tool depends entirely on the size of the platform, number of microservices, number of teams and users, or the financial terms of the organization. In the next chapter, we will go through some of the common issues raised in microservice environment and how we can troubleshoot them.