Here is my understanding of how job submission works in Flink. When submitting a job to job manager via REST API, we provide a entry class. Job manager then evaluate job graph and ship serialized operators to task manager. Task manager then open operators and run tasks.
My app would typically requires some initialization phase to setup my own running context in task manager (e.g. calling a static method of some class). Does Flink provide any entry hook in task manager when executing a job (and tasks)? As for job manager, the entry class provides such hook where I can initialize my static context. Thanks, Steven