Pyspark: Exception: Java Gateway Process Exited Before Sending the Driver Its Port Number

Java error Java gateway process exited before sending its port number

Based on your error logs, I think you need to specify the $JAVA_HOME variable on your system.

This link may help:

https://sparkbyexamples.com/pyspark/pyspark-exception-java-gateway-process-exited-before-sending-the-driver-its-port-number/

In Linux:

export JAVA_HOME=(Path to the JDK, e.x: /usr/lib/jvm/java-11-openjdk-amd64)

And after that, you need to save it in your ~/.bashrc (If you use bash)

vi ~/.bashrc
export JAVA_HOME=(Path to the JDK, e.x: /usr/lib/jvm/java-11-openjdk-amd64)

Then:

source ~/.bashrc

(You can see the above link)

In windows:

Go to the edit system environment window on your My Computer.

See this:
https://confluence.atlassian.com/doc/setting-the-java_home-variable-in-windows-8895.html

Exception: Java gateway process exited before sending its port number

Using Windows as an example.

Method 1 (temporary solution)：

import os
os.environ['JAVA_HOME'] = "C:\Program Files\Java\jdk1.8.0_331" 

Method 2：

Set the system variable in the environment variables, add a new variable named "JAVA_HOME" with the value "C:\Program Files\Java\jdk1.8.0_331"

Creating sparkContext on Google Colab gives: `RuntimeError: Java gateway process exited before sending its port number`

You can install Pyspark using PyPI as an alternative:

For Python users, PySpark also provides pip installation from PyPI. This is usually for local usage or as a client to connect to a cluster instead of setting up a cluster itself.

Install pyspark + openjdk

%pip install pyspark==2.4.8
!apt-get install openjdk-8-jdk-headless -qq > /dev/null

Create spark session

from pyspark.sql import SparkSession

spark = SparkSession.builder\
        .master("local[*]")\
        .appName("Test Setup")\
        .getOrCreate()

Tested in Google Colab Notebook:

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