Easy Notes – Notepad, Notebook, Free Notes App allows you to easily set reminders for simple notepad notes. Schedule your time and don't miss important notes. If this free note-taking app is helpful for you, please share the note-taking app with your friends. If any issues, Please mail us via gulooloo2020@gmail.com. Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.
Spark is a fast and powerful framework.
Apache Spark is a must for Big data’s lovers. In a few words, Spark is a fast and powerful framework that provides an API to perform massive distributed processing over resilient sets of data.
- The Storage pane of About This Mac is the best way to determine the amount of storage space available on your Mac. Disk Utility and other apps might show storage categories such as Not Mounted, VM, Recovery, Other Volumes, Other, Free, or Purgeable.
- Download and install BlueStacks on your PC. Complete Google sign-in to access the Play Store, or do it later. Look for HBO Max in the search bar at the top right corner. Click to install HBO Max from the search results. Complete Google sign-in (if you skipped step 2) to install HBO Max. Click the HBO Max icon on the home screen to start playing.
Jupyter Notebook is a popular application that enables you to edit, run and share Python code into a web view. It allows you to modify and re-execute parts of your code in a very flexible way. That’s why Jupyter is a great tool to test and prototype programs.
I wrote this article for Linux users but I am sure Mac OS users can benefit from it too.
Why use PySpark in a Jupyter Notebook?
While using Spark, most data engineers recommends to develop either in Scala (which is the “native” Spark language) or in Python through complete PySpark API.
Python for Spark is obviously slower than Scala. However like many developers, I love Python because it’s flexible, robust, easy to learn, and benefits from all my favorites libraries. In my opinion, Python is the perfect language for prototyping in Big Data/Machine Learning fields.
If you prefer to develop in Scala, you will find many alternatives on the following github repository: alexarchambault/jupyter-scala
To learn more about Python vs. Scala pro and cons for Spark context, please refer to this interesting article: Scala vs. Python for Apache Spark.
Now, let’s get started.
Install pySpark
Before installing pySpark, you must have Python and Spark installed. I am using Python 3 in the following examples but you can easily adapt them to Python 2. Go to the Python official website to install it. I also encourage you to set up a virtualenv
To install Spark, make sure you have Java 8 or higher installed on your computer. Then, visit the Spark downloads page. Select the latest Spark release, a prebuilt package for Hadoop, and download it directly.
Unzip it and move it to your /opt folder:
Create a symbolic link:
This way, you will be able to download and use multiple Spark versions.
Finally, tell your bash (or zsh, etc.) where to find Spark. To do so, configure your $PATH variables by adding the following lines in your ~/.bashrc (or ~/.zshrc) file:
Install Jupyter Notebook
Install Jupyter notebook:
You can run a regular jupyter notebook by typing:
Your first Python program on Spark
Let’s check if PySpark is properly installed without using Jupyter Notebook first.
You may need to restart your terminal to be able to run PySpark. Run:
It seems to be a good start! Run the following program: (I bet you understand what it does!)
The output will probably be around 3.14.
PySpark in Jupyter
There are two ways to get PySpark available in a Jupyter Notebook:
Best Notebook For Mac Free
- Configure PySpark driver to use Jupyter Notebook: running
pysparkwill automatically open a Jupyter Notebook - Load a regular Jupyter Notebook and load PySpark using findSpark package
First option is quicker but specific to Jupyter Notebook, second option is a broader approach to get PySpark available in your favorite IDE.
Method 1 — Configure PySpark driver
Update PySpark driver environment variables: add these lines to your ~/.bashrc (or ~/.zshrc) file.
Restart your terminal and launch PySpark again:
Now, this command should start a Jupyter Notebook in your web browser. Create a new notebook by clicking on ‘New’ > ‘Notebooks Python [default]’.
Copy and paste our Pi calculation script and run it by pressing Shift + Enter.
Done!
You are now able to run PySpark in a Jupyter Notebook :)
Apple Notebook App
Method 2 — FindSpark package
There is another and more generalized way to use PySpark in a Jupyter Notebook: use findSpark package to make a Spark Context available in your code.
findSpark package is not specific to Jupyter Notebook, you can use this trick in your favorite IDE too.
To install findspark:
Launch a regular Jupyter Notebook:
Create a new Python [default] notebook and write the following script:
The output should be:
I hope this 3-minutes guide will help you easily getting started with Python and Spark. Here are a few resources if you want to go the extra mile:
Smart Notebook For Mac Free
- https://github.com/jadianes/spark-py-notebooksI
Used Mac Notebooks For Sale
And if you want to tackle some bigger challenges, don't miss out the more evolved JupyterLab environnement or the PyCharm integration of jupyter notebooks.
Thanks to Pierre-Henri Cumenge, Antoine Toubhans, Adil Baaj, Vincent Quagliaro, and Adrien Lina.