Re: [Spark-core] why Executors send HeartBeat to driver but not App Master

The app master doesn't have anything it needs to periodically tell the driver, so there was no need for a heartbeat. On Fri, Mar 2, 2018 at 1:44 AM, sandeep_katta wrote: > I want to attempt *SPARK-23545* bug,so I have some questions regarding the > design, > > I

[Spark-core] why Executors send HeartBeat to driver but not App Master

I want to attempt *SPARK-23545* bug,so I have some questions regarding the design, I am analyzing the communications between App Master->Driver and Executor->Driver and found that only Executors send HeartBeat to Driver. As per design Executor sends HearBeat to Driver for every