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@@ -13,9 +13,9 @@ This README file only contains basic setup instructions.
## Building
Spark requires Scala 2.10. The project is built using Simple Build Tool (SBT),
-which is packaged with it. To build Spark and its example programs, run:
+which can be obtained [here](http://www.scala-sbt.org). To build Spark and its example programs, run:
- sbt/sbt assembly
+ sbt assembly
Once you've built Spark, the easiest way to start using it is the shell:
@@ -36,7 +36,13 @@ All of the Spark samples take a `<master>` parameter that is the cluster URL
to connect to. This can be a mesos:// or spark:// URL, or "local" to run
locally with one thread, or "local[N]" to run locally with N threads.
+## Running tests
+Testing first requires [Building](#Building) Spark. Once Spark is built, tests
+can be run using:
+
+`sbt test`
+
## A Note About Hadoop Versions
Spark uses the Hadoop core library to talk to HDFS and other Hadoop-supported
@@ -49,22 +55,22 @@ For Apache Hadoop versions 1.x, Cloudera CDH MRv1, and other Hadoop
versions without YARN, use:
# Apache Hadoop 1.2.1
- $ SPARK_HADOOP_VERSION=1.2.1 sbt/sbt assembly
+ $ SPARK_HADOOP_VERSION=1.2.1 sbt assembly
# Cloudera CDH 4.2.0 with MapReduce v1
- $ SPARK_HADOOP_VERSION=2.0.0-mr1-cdh4.2.0 sbt/sbt assembly
+ $ SPARK_HADOOP_VERSION=2.0.0-mr1-cdh4.2.0 sbt assembly
For Apache Hadoop 2.2.X, 2.1.X, 2.0.X, 0.23.x, Cloudera CDH MRv2, and other Hadoop versions
with YARN, also set `SPARK_YARN=true`:
# Apache Hadoop 2.0.5-alpha
- $ SPARK_HADOOP_VERSION=2.0.5-alpha SPARK_YARN=true sbt/sbt assembly
+ $ SPARK_HADOOP_VERSION=2.0.5-alpha SPARK_YARN=true sbt assembly
# Cloudera CDH 4.2.0 with MapReduce v2
- $ SPARK_HADOOP_VERSION=2.0.0-cdh4.2.0 SPARK_YARN=true sbt/sbt assembly
+ $ SPARK_HADOOP_VERSION=2.0.0-cdh4.2.0 SPARK_YARN=true sbt assembly
# Apache Hadoop 2.2.X and newer
- $ SPARK_HADOOP_VERSION=2.2.0 SPARK_YARN=true sbt/sbt assembly
+ $ SPARK_HADOOP_VERSION=2.2.0 SPARK_YARN=true sbt assembly
When developing a Spark application, specify the Hadoop version by adding the
"hadoop-client" artifact to your project's dependencies. For example, if you're