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scala

How to use JDBC source to write and read data in (Py)Spark?

August 20, 2022 by Magenaut

The goal of this question is to document:

Categories Python, Q&A Tags apache-spark, apache-spark-sql, pyspark, python, scala Leave a comment

Calling Java/Scala function from a task

August 20, 2022 by Magenaut

Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transforamtion. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063.

Categories Python, Q&A Tags apache-spark, apache-spark-mllib, pyspark, python, scala Leave a comment

How to turn off INFO logging in Spark?

August 17, 2022 by Magenaut

I installed Spark using the AWS EC2 guide and I can launch the program fine using the bin/pyspark script to get to the spark prompt and can also do the Quick Start quide successfully.

Categories Python, Q&A Tags apache-spark, hadoop, pyspark, python, scala Leave a comment

Abstract attributes in Python

August 17, 2022 by Magenaut

TypeError: Can’t instantiate abstract class B with abstract methods a

Categories Python, Q&A Tags abstract-class, oop, python, scala Leave a comment

Which programming languages can I use on Android Dalvik?

August 14, 2022 by Magenaut

In theory, Dalvik executes any virtual machine byte code, created for example with the compilers of

Categories Python, Q&A Tags android, dalvik, java, python, scala Leave a comment

How to use a Scala class inside Pyspark

August 14, 2022 by Magenaut

I’ve been searching for a while if there is any way to use a Scala class in Pyspark, and I haven’t found any documentation nor guide about this subject.

Categories Python, Q&A Tags apache-spark, apache-spark-sql, pyspark, python, scala Leave a comment
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