Spark notes

Adding files to the nodes:

   sc.addFile(filename)

• https://medium.com/@rbahaguejr/adding-python-files-to-pyspark-job-b725e02c8ab2

Tutorials

• https://medium.com/@rbahaguejr/adding-python-files-to-pyspark-job-b725e02c8ab2

Tuning

• https://stackoverflow.com/questions/37871194/how-to-tune-spark-executor-number-cores-and-executor-memory
• https://blog.cloudera.com/blog/2015/03/how-to-tune-your-apache-spark-jobs-part-2/
• http://site.clairvoyantsoft.com/understanding-resource-allocation-configurations-spark-application/

Good Blog Entries

• https://developerzen.com/best-practices-writing-production-grade-pyspark-jobs-cb688ac4d20f (most about packaging and a shared context)