presto-main/src/main/java/io/prestosql/execution/executor/TaskExecutor.java/TaskExecutor/removeTask
class TaskExecutor:    public void removeTask(TaskHandle taskHandle)
    {
        try (SetThreadName ignored = new SetThreadName("Task-%s", taskHandle.getTaskId())) {
            doRemoveTask(taskHandle);
        }

        // replace blocked splits that were terminated
        addNewEntrants();
    }