Once i've downloaded the blockchain with geth --fast , is there a dynamic pruning on the up-comings blocks, or will I archive all the blocks from where I stand?
Simple answer no. --fast download a pruned version of the state tries, but it behaves like archive after. So if you want spare disk, remove your blockchain with geth removedb and do a --fast again.
I thought that in some way, there was a reference count which would end some tx in a "death row"; but it's not clear... I have a reference from Vitalik Butterin here : blog.ethereum.org/2015/06/26/state-tree-pruning– yoregisJun 4, 2016 at 21:21
What is you Source? Jun 5, 2016 at 4:57
--fastcommand-line option is now deprecated. Instead there is now
--syncmode "light". This is briefly documented here: github.com/ethereum/go-ethereum/wiki/Command-Line-Options and explained here: ethereum.stackexchange.com/questions/11297/…