Why should I monitor processes and not just link and trap exits?

Question

Besides avoiding propagated kills, is there any advantage to monitoring over just trapping exits?

Answer 1

与陷阱退出不同，监控允许您轻松地关注尚未生成的流程，而无需捕获退出。此外，链接是双向的，所以如果你链接到某个进程但你先死了而且它没有捕获退出，它也会死掉。监控可防止这种意外耦合。

Answer 2

There is never more than one link between two processes, while there can be several nested monitors.

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