The goal of this question is to document: steps required to read and write data using JDBC connections in PySpark possible issues with JDBC sources and know solutions With small changes these methods should work with other supported languages including Scala and R. Answer Writing data Include applicable JDBC driver when you submit the application or start shell. You can
Tag: apache-spark
Calculating the averages for each KEY in a Pairwise (K,V) RDD in Spark with Python
I want to share this particular Apache Spark with Python solution because documentation for it is quite poor. I wanted to calculate the average value of K/V pairs (stored in a Pairwise RDD), by KEY. Here is what the sample data looks like: Now the following code sequence is a less than optimal way to do it, but it does