Edwina Lu

Initial changes for adding Spark stage analysis

2

- Add StageAnalyzer for analyzing the stages for a Spark application for execution memory spill, long tasks, task skew, and failures. - Call REST API for getting failed tasks. -...

Add new configuration parameters heuristic, which will list the current values for configuration parameters, and also recommended new values. To determine new values, it will check for: - execution memory...