Just another noob question : what if I run a node and I shut down my computer, and then open it again.
Does it download again the whole blockchain or does it work like differential backup (only the modified/new blocks are downloaded and added to the main database) ?
Just another noob question : what if I run a node and I shut down my computer, and then open it again.
Does it download again the whole blockchain or does it work like differential backup (only the modified/new blocks are downloaded and added to the main database) ?
It will download only new blocks. The old blocks that you've already downloaded are on your PC in the "test_bd" folder.
Yeah, Kotarastra is right, after you shut down your node you'll stop downloading new block. Once you launch your node again you'll begin downloading blocks that were generated while you were offline, synchronization time will depend on how much time you were offline and how many block were generated. I hope that clarifies the process well enough:)