at is running to simulate traffic.</p></li></ol><p>In both cases, the application did not crash. The crash in the <code>details</code>
microservice did not cause other microservices to fail. This behavior means you
did not have a <strong>cascading failure</strong> in this situation. Instead, you had
<strong>gradual service degradation</strong>: despite one microservice crashing, the
application could still provide useful functionality. It displayed the reviews
and the basic information about the book.</p><p