Tuning and Debugging Apache Spark - vaquarkhan/Apache-Kafka-poc-and-notes GitHub Wiki https://databricks.com/blog/2015/06/22/understanding-your-spark-application-through-visualization.html https://stackoverflow.com/questions/37528047/how-are-stages-split-into-tasks-in-spark https://www.sigmoid.com/apache-spark-internals/ http://data-informed.com/tuning-apache-spark-jobs-the-easy-way-web-ui-stage-detail-view/ https://www.youtube.com/watch?v=Wg2boMqLjCg