The size relationship of several concepts in storm

It can be seen from the graph that:topology>supervisor>worker>excutor>task;

In other words, a topology can run on multiple supervisor, a supervisor can run multiple workers (processes), a worker can have multiple excutor (threads), a excutor can run multiple tasks;

About the size of a task can be understood as a task instance of a bolt. The task number is not set by default, the default is the same as the excutor number, which means that a Excutor runs a task that can be

Builder.setbolt ("admlnbolt"new3). Setnumtasks (5). Nonegrouping (Pre_name);  

Setnumtasks () to set the

In fact, they have no size relationship because they are different in nature.

The size relationship of several concepts in storm