Do I need to save the model when I stop sending it data?

question
newbie
#1

I have created a online learning model and i am running the model on a real time stream .In between if the stream stops do i need to save the model again or will the model remember the previous instance data when i start running again

#2

If the model just sits in memory with nothing happening I assume it should retain its state, otherwise you could save and reload it back in.