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 <sandeep0102.opensou...@gmail.com> wrote: > 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 > "spark.executor.heartbeatInterval" interval. > > Why does the App Master does not have same mechanism,was there any > reason/limitation behind this ? > > > Thanks > Sandeep > > > > -- > Sent from: http://apache-spark-developers-list.1001551.n3.nabble.com/ > > --------------------------------------------------------------------- > To unsubscribe e-mail: dev-unsubscr...@spark.apache.org > -- Marcelo --------------------------------------------------------------------- To unsubscribe e-mail: dev-unsubscr...@spark.apache.org
