How do I run a Scala file from spark shell?

By Fresh ideas

How do I run a Scala file from spark shell?

Solution

  1. Step 1: Setup. We will use the given sample data in the code. You can download the data from here and keep at any location.
  2. Step 2: Write code. import org. apache.
  3. Step 3: Execution. We have written the code in a file. Now, lets execute it in spark-shell.

How do I run a Scala program in spark?

Write and run Spark Scala jobs on Dataproc

  1. On this page.
  2. Set up a Google Cloud Platform project.
  3. Write and compile Scala code locally. Use Scala.
  4. Create a jar.
  5. Copy jar to Cloud Storage.
  6. Submit jar to a Dataproc Spark job.
  7. Write and run Spark Scala code using the cluster’s spark-shell REPL.
  8. Running Pre-Installed Example code.

How do I run a Scala file?

Run Scala applications

  1. Create or import a Scala project as you would normally create or import any other project in IntelliJ IDEA.
  2. Open your application in the editor.
  3. Press Shift+F10 to execute the application. Alternatively, in the left gutter of the editor, click the. icon and select Run ‘name’.

How do I run Scala in Scala shell?

Another way to execute Scala code is to type it into a text file and save it with a name ending with “. scala”. We can then execute that code by typing “scala filename”. For instance, we can create a file named hello.

How do I run a spark command in shell script?

You need to download Apache Spark from the website, then navigate into the bin directory and run the spark-shell command:

  1. scala Copy. Downloads/spark-3.2.
  2. undefined Copy. ./spark-shell –packages com.couchbase.client:spark-connector_2.12:3.2.0.
  3. undefined Copy.

How do I run a SQL file in spark shell?

Procedure

  1. Start the Spark shell. dse spark.
  2. Use the sql method to pass in the query, storing the result in a variable. val results = spark.sql(“SELECT * from my_keyspace_name.my_table”)
  3. Use the returned data.

How do I run a SQL file in Spark shell?

How do I run spark in IntelliJ?

Spark Setup with Scala and Run in IntelliJ

  1. Install JDK.
  2. Setup IntelliJ IDEA for Spark.
  3. Create a Scala project In IntelliJ.
  4. Install Scala Plugin.
  5. Setup Scala SDK.
  6. Make changes to pom.
  7. Delete Unnecessary Files.
  8. Add Spark Dependencies to Maven pom.xml File.

Where do I enter scala code?

To write scala program you need to install scala on your machine. You must have latest jdk installed on your machine because scala compiler creates . class file which is a byte code. Scala interpreter executes this byte code by using jvm (Java Virtual Machine).

How do I open scala in CMD?

To run Scala from the command-line, download the binaries and unpack the archive. Start the Scala interpreter (aka the “REPL”) by launching scala from where it was unarchived. Start the Scala compiler by launching scalac from where it was unarchived.

How do I run Spark shell locally?

How to Install Apache Spark on Windows 10

  1. Step 1: Install Java 8.
  2. Step 2: Install Python.
  3. Step 3: Download Apache Spark.
  4. Step 4: Verify Spark Software File.
  5. Step 5: Install Apache Spark.
  6. Step 6: Add winutils.exe File.
  7. Step 7: Configure Environment Variables.
  8. Step 8: Launch Spark.

What is spark shell in spark Scala?

The spark-shell is an environment where we can run the spark scala code and see the output on the console for every execution of line of the code. It is more interactive environment. But, when we have more line of code, we prefer to write in a file and execute the file.

How to count unique words in a file using Scala spark shell?

We have successfully counted unique words in a file with Word Count example run on Scala Spark Shell. You may use Spark Context Web UI to check the details of the Job (Word Count) that we have just run. Navigate through other tabs to get an idea of Spark Web UI and the details about the Word Count Job.

What is the Apache Spark shell?

Spark Shell is an interactive shell through which we can access Spark’s API. Spark provides the shell in two programming languages : Scala and Python. In this tutorial, we shall learn the usage of Scala Spark Shell with a basic word count example. It is assumed that you already installed Apache Spark on your local machine.

How to compile a Hello World app using spark Scala?

write and compile a Spark Scala “Hello World” app on a local machine from the command line using the Scala REPL (Read-Evaluate-Print-Loop or interactive interpreter), the SBT build tool, or the Eclipse IDE using the Scala IDE plugin for Eclipse package compiled Scala classes into a jar file with a manifest