#48: Distributed tracing: find bottlenecks in complex systems

Life used to be simple. In a traditional monolithic application, when a failure occurred, you could easily find the problem. When an exception bubbles up, it appears throughout all stack frames. You can easily examine which methods or functions were invoked from each other. You can see application layers involved. Moreover, it’s fairly easy to profile performance bottlenecks. Answering these questions becomes much harder when there are multiple systems involved.

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