Ah, forgot the -verbose option. Thanks Andrew. That is very helpful.
Date: Wed, 21 May 2014 11:07:55 -0700
Subject: Re: Is spark 1.0.0 "spark-shell --master=yarn" running in yarn-cluster
mode or yarn-client mode?
From: and...@databricks.com
To: user@spark.apache.org
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 <alee...@hotmail.com>:
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.
