The answer is actually yarn-client. A quick way to find out:
$ bin/spark-shell --master yarn --verbose
>From the system properties you can see spark.master is set to
"yarn-client." From the code, this is because args.deployMode is null, and
so it's not equal to "cluster" and so it falls into the second "if" case
you mentioned:
if (args.deployMode != "cluster" && args.master.startsWith("yarn")) {
args.master = "yarn-client"
}
2014-05-21 10:57 GMT-07:00 Andrew Lee <[email protected]>:
> Does anyone know if:
>
> ./bin/spark-shell --master yarn
>
> is running yarn-cluster or yarn-client by default?
>
> Base on source code:
>
> ./core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala
>
>
> if (args.deployMode == "cluster" && args.master.startsWith("yarn")) {
>
> args.master = "yarn-cluster"
>
> }
>
> if (args.deployMode != "cluster" && args.master.startsWith("yarn")) {
>
> args.master = "yarn-client"
>
> }
>
> It looks like the answer is yarn-cluster mode.
>
> I want to confirm this with the community, thanks.
>
