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Pruning

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The blockchain prunes seven eighths of prunable tx data.
This saves about two thirds of the blockchain size, while
keeping the node useful as a sync source for an eighth
of the blockchain.

No other data is currently pruned.

There are three ways to prune a blockchain:

- run monerod with --prune-blockchain
- run "prune_blockchain" in the monerod console
- run the monero-blockchain-prune utility

The first two will prune in place. Due to how LMDB works, this
will not reduce the blockchain size on disk. Instead, it will
mark parts of the file as free, so that future data will use
that free space, causing the file to not grow until free space
grows scarce.

The third way will create a second database, a pruned copy of
the original one. Since this is a new file, this one will be
smaller than the original one.

Once the database is pruned, it will stay pruned as it syncs.
That is, there is no need to use --prune-blockchain again, etc.
This commit is contained in:
moneromooo-monero 2018-04-29 23:30:51 +01:00
parent 4e72384318
commit b750fb27b0
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52 changed files with 3308 additions and 445 deletions
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10
contrib/epee/include/net/net_utils_base.h
View file

@ -228,6 +228,8 @@ namespace net_utils
uint64_t m_send_cnt;
double m_current_speed_down;
double m_current_speed_up;
double m_max_speed_down;
double m_max_speed_up;
connection_context_base(boost::uuids::uuid connection_id,
const network_address &remote_address, bool is_income,
@ -242,7 +244,9 @@ namespace net_utils
m_recv_cnt(recv_cnt),
m_send_cnt(send_cnt),
m_current_speed_down(0),
m_current_speed_up(0)
m_current_speed_up(0),
m_max_speed_down(0),
m_max_speed_up(0)
{}
connection_context_base(): m_connection_id(),
@ -254,7 +258,9 @@ namespace net_utils
m_recv_cnt(0),
m_send_cnt(0),
m_current_speed_down(0),
m_current_speed_up(0)
m_current_speed_up(0),
m_max_speed_down(0),
m_max_speed_up(0)
{}
connection_context_base& operator=(const connection_context_base& a)