com.datastax.spark.connector.writer
Executes task asynchronously or blocks if more than maxConcurrentTasks
limit is reached
Executes task asynchronously or blocks if more than maxConcurrentTasks
limit is reached
Returns an exception if any of the futures had an exception.
Returns an exception if any of the futures had an exception. Returning None means that no exceptions have been thrown.
Waits until the tasks being currently executed get completed.
Waits until the tasks being currently executed get completed. It will not wait for tasks scheduled for execution during this method call, nor tasks for which the executeAsync method did not complete.