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Showing posts with the label Apache Spark
Pyspark Dynamic Column Computation

Pyspark Dynamic Column Computation

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Below is my spark data frame a b c 1 3 4 2 0 0 4 1 0 2 2 0 My output should be as below a b c 1 3 … Read more Pyspark Dynamic Column Computation
How To Delete An Rdd In Pyspark For The Purpose Of Releasing Resources?

How To Delete An Rdd In Pyspark For The Purpose Of Releasing Resources?

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If I have an RDD that I no longer need, how do I delete it from memory? Would the following be enou… Read more How To Delete An Rdd In Pyspark For The Purpose Of Releasing Resources?
How To Read Multiline Csv File In Pyspark

How To Read Multiline Csv File In Pyspark

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I'm using this tweets dataset with Pyspark in order to process it and get some trends according… Read more How To Read Multiline Csv File In Pyspark
What Hashing Function Does Spark Use For Hashingtf And How Do I Duplicate It?

What Hashing Function Does Spark Use For Hashingtf And How Do I Duplicate It?

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Spark MLLIb has a HashingTF() function that computes document term frequencies based on a hashed va… Read more What Hashing Function Does Spark Use For Hashingtf And How Do I Duplicate It?
Can't Instantiate Spark Context In Ipython

Can't Instantiate Spark Context In Ipython

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I'm trying to set up a stand alone instance of spark locally on a mac and use the Python 3 API.… Read more Can't Instantiate Spark Context In Ipython
Pyspark Application Fail With Java.lang.outofmemoryerror: Java Heap Space

Pyspark Application Fail With Java.lang.outofmemoryerror: Java Heap Space

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I'm running spark via pycharm and respectively pyspark shell. I've stacked with this error:… Read more Pyspark Application Fail With Java.lang.outofmemoryerror: Java Heap Space