Called when the application ends
Called when the application starts
Called when a new block manager has joined
Called when an existing block manager has been removed
Called when environment properties have been updated
Called when the driver receives task metrics from an executor in a heartbeat.
Called when a job ends
Called when a job starts
Called when a stage completes successfully or fails, with information on the completed stage.
For FIFO, all stages are contained by "default" pool but "default" pool here is meaningless
Called when a task ends
Called when a task begins remotely fetching its result (will not be called for tasks that do not need to fetch the result remotely).
Called when a task starts
Called when an RDD is manually unpersisted by the application
Upon receiving new metrics for a task, updates the per-stage and per-executor-per-stage aggregate metrics by calculating deltas between the currently recorded metrics and the new metrics.