The current bulk cursor implementation will wait to get (or fail to get) exclusive access to a handle before proceeding. That can mean that opening a bulk cursor can block waiting for a checkpoint to finish.
It would be good to add a new checkpoint_wait flag to the WT_SESSION::open_cursor method, that will cause bulk cursors to acquire the checkpoint lock via a try lock if configured. The option should be illegal when opening a non-bulk cursor.
This functionality matches the existing WT_SESSION::drop checkpoint_wait configuration option.