/high-performance-spark-examples

Examples for High Performance Spark

Primary LanguageScalaOtherNOASSERTION

high-performance-spark-examples

Examples for High Performance Spark

We are in the progress of updata this for Spark 3.5+ and the 2ed edition of our book!

Building

Most of the examples can be built with sbt, the C and Fortran components depend on gcc, g77, and cmake.

Tests

The full test suite depends on having the C and Fortran components built as well as a local R installation available.

The most "accuate" way of seeing how we run the tests is to look at the .github workflows

History Server

The history server can be a great way to figure out what's going on.

By default the history server writes to /tmp/spark-events so you'll need to create that directory if not setup with

mkdir -p /tmp/spark-events

The scripts for running the examples generally run with the event log enabled.

You can set the SPARK_EVENTLOG=true before running the scala tests and you'll get the history server too!

e.g.

SPARK_EVENTLOG=true sbt test

If you want to run just a specific test you can run testOnly

Then to view the history server you'll want to launch it using the ${SPARK_HOME}/sbin/start-history-server.sh then you can go to your local history server