hi , Sorry for asking the quest here? Any answer will be apprecated. Why different job's tasks can run in the single process. (There are some different job's tasks in one TaskManager).It seems Flink-on-Yarn can let different job run on different process. But for standalone mode, this problem still exists. Why design Flink like this?The advantage What I can thought is as following:(1) All task can share bigger memory pool.(2) The communication between the tasks in the same process will be fast. But this design will impact to the stability. Flink provide User-Define-Function interface, if one of the User-Define-Function crash, It maybe crack the whole JVM, If the TaskManager crash, all other job's task in this TaskManager will be impacted. Even if the JVM don't crash, but maybe lead to some other unexpected problem, what's more this will make the code too sophisticated。Normal framework like Spark/Storm/Samza won't run different job's tasks in the same process。As one normal user, stability has the highest priority.
ThanksLongda
