As in microservices, we have different services running in different locations. They are isolated from each other, so their logs are also at different locations. Also, there are chances that the format of logs is quite different. While debugging any particular traffic call, the developer has to look into many different log files, which have other data as well. As in our last example, microservice 1, 2, 3 , n, and m all have different log files, different locations, or different servers. It is not an easy task for any developer to identify which particular component is behaving slowly.

If you increase the complexity here, for instance, rather than 5 microservices, one call deals with 10 microservices, there will also be a lot of traffic on the web site, depending upon the log level, the log file also become in gigabytes. This will make it very hard to identify the exact issue.