There is no Spark master in YARN mode. It's standalone mode terminology.
In YARN cluster mode, Spark's Application Master (Spark Driver runs in it) will be restarted
automatically by RM up to yarn.resourcemanager.am.max-retries
times (default is 2). 

--
Ruslan Dautkhanov

On Fri, Jul 17, 2015 at 1:29 AM, Bhaskar Dutta <bhaskie@gmail.com> wrote:
Hi,

Is Spark master high availability supported on YARN (yarn-client mode) analogous to https://spark.apache.org/docs/1.4.0/spark-standalone.html#high-availability?

Thanks
Bhaskie