Closing running Tensorboard

[chovanecm]

As a user, I want to be able to stop an already running Tensorboard

[jyhong836]

For running multiple tensorboard, this implementation at jupyter_tensorboard/tensorboard_manager.py might be a good practice.
Maintaining multiple tensorboard by processes is not very efficient and hard to manage.

[chovanecm]

Hi, thanks for your proposal. Have you experienced any troubles with the current implementation? (Yes, it is not perfect, but I am trying to figure out if it makes sense to change it now)

[jyhong836]

Thank you for your reply.

In fact, the frontend is okay for using even if it is implemented in process-style.

I am just worried about running too much tensorboard in the background, which might overload my computer. And I cannot know how many tensorboard threads have been running there.