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Merge pull request #3205 

bc61ae69 tx_pool: add a max pool size, settable with --max-txpool-size (moneromooo-monero)
3b4e6b35 txpool: increase unmined tx expiry to three days (moneromooo-monero)
This commit is contained in:
Riccardo Spagni 2018-02-16 14:21:50 +01:00
parent ac27f35c2a bc61ae69bf
commit 079eea7b70
No known key found for this signature in database
GPG Key ID: 55432DF31CCD4FCD
4 changed files with 115 additions and 6 deletions
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3
src/cryptonote_config.h
View File

@ -92,7 +92,7 @@
#define BLOCKS_SYNCHRONIZING_DEFAULT_COUNT_PRE_V4 100 //by default, blocks count in blocks downloading
#define BLOCKS_SYNCHRONIZING_DEFAULT_COUNT 20 //by default, blocks count in blocks downloading
#define CRYPTONOTE_MEMPOOL_TX_LIVETIME 86400 //seconds, one day
#define CRYPTONOTE_MEMPOOL_TX_LIVETIME (86400*3) //seconds, three days
#define CRYPTONOTE_MEMPOOL_TX_FROM_ALT_BLOCK_LIVETIME 604800 //seconds, one week
#define COMMAND_RPC_GET_BLOCKS_FAST_MAX_COUNT 1000
@ -138,6 +138,7 @@
#define HASH_OF_HASHES_STEP 256
#define DEFAULT_TXPOOL_MAX_SIZE 648000000ull // 3 days at 300000, in bytes
// New constants are intended to go here
namespace config

9
src/cryptonote_core/cryptonote_core.cpp
View File

@ -137,6 +137,11 @@ namespace cryptonote
, "Relay blocks as fluffy blocks where possible (automatic on testnet)"
, false
};
static const command_line::arg_descriptor<size_t> arg_max_txpool_size = {
"max-txpool-size"
, "Set maximum txpool size in bytes."
, DEFAULT_TXPOOL_MAX_SIZE
};
//-----------------------------------------------------------------------------------------------
core::core(i_cryptonote_protocol* pprotocol):
@ -241,6 +246,7 @@ namespace cryptonote
command_line::add_arg(desc, arg_test_dbg_lock_sleep);
command_line::add_arg(desc, arg_offline);
command_line::add_arg(desc, arg_disable_dns_checkpoints);
command_line::add_arg(desc, arg_max_txpool_size);
miner::init_options(desc);
BlockchainDB::init_options(desc);
@ -359,6 +365,7 @@ namespace cryptonote
bool fast_sync = command_line::get_arg(vm, arg_fast_block_sync) != 0;
uint64_t blocks_threads = command_line::get_arg(vm, arg_prep_blocks_threads);
std::string check_updates_string = command_line::get_arg(vm, arg_check_updates);
size_t max_txpool_size = command_line::get_arg(vm, arg_max_txpool_size);
boost::filesystem::path folder(m_config_folder);
if (m_fakechain)
@ -477,7 +484,7 @@ namespace cryptonote
r = m_blockchain_storage.init(db.release(), m_testnet, m_offline, test_options);
r = m_mempool.init();
r = m_mempool.init(max_txpool_size);
CHECK_AND_ASSERT_MES(r, false, "Failed to initialize memory pool");
// now that we have a valid m_blockchain_storage, we can clean out any

82
src/cryptonote_core/tx_pool.cpp
View File

@ -102,7 +102,7 @@ namespace cryptonote
}
//---------------------------------------------------------------------------------
//---------------------------------------------------------------------------------
tx_memory_pool::tx_memory_pool(Blockchain& bchs): m_blockchain(bchs)
tx_memory_pool::tx_memory_pool(Blockchain& bchs): m_blockchain(bchs), m_txpool_max_size(DEFAULT_TXPOOL_MAX_SIZE), m_txpool_size(0)
{
}
@ -295,8 +295,12 @@ namespace cryptonote
}
tvc.m_verifivation_failed = false;
m_txpool_size += blob_size;
MINFO("Transaction added to pool: txid " << id << " bytes: " << blob_size << " fee/byte: " << (fee / (double)blob_size));
prune(m_txpool_max_size);
return true;
}
//---------------------------------------------------------------------------------
@ -309,6 +313,72 @@ namespace cryptonote
return add_tx(tx, h, blob_size, tvc, keeped_by_block, relayed, do_not_relay, version);
}
//---------------------------------------------------------------------------------
size_t tx_memory_pool::get_txpool_size() const
{
CRITICAL_REGION_LOCAL(m_transactions_lock);
return m_txpool_size;
}
//---------------------------------------------------------------------------------
void tx_memory_pool::set_txpool_max_size(size_t bytes)
{
CRITICAL_REGION_LOCAL(m_transactions_lock);
m_txpool_max_size = bytes;
}
//---------------------------------------------------------------------------------
void tx_memory_pool::prune(size_t bytes)
{
CRITICAL_REGION_LOCAL(m_transactions_lock);
if (bytes == 0)
bytes = m_txpool_max_size;
CRITICAL_REGION_LOCAL1(m_blockchain);
LockedTXN lock(m_blockchain);
// this will never remove the first one, but we don't care
auto it = --m_txs_by_fee_and_receive_time.end();
while (it != m_txs_by_fee_and_receive_time.begin())
{
if (m_txpool_size <= bytes)
break;
try
{
const crypto::hash &txid = it->second;
txpool_tx_meta_t meta;
if (!m_blockchain.get_txpool_tx_meta(txid, meta))
{
MERROR("Failed to find tx in txpool");
return;
}
// don't prune the kept_by_block ones, they're likely added because we're adding a block with those
if (meta.kept_by_block)
{
--it;
continue;
}
cryptonote::blobdata txblob = m_blockchain.get_txpool_tx_blob(txid);
cryptonote::transaction tx;
if (!parse_and_validate_tx_from_blob(txblob, tx))
{
MERROR("Failed to parse tx from txpool");
return;
}
// remove first, in case this throws, so key images aren't removed
MINFO("Pruning tx " << txid << " from txpool: size: " << it->first.second << ", fee/byte: " << it->first.first);
m_blockchain.remove_txpool_tx(txid);
m_txpool_size -= txblob.size();
remove_transaction_keyimages(tx);
MINFO("Pruned tx " << txid << " from txpool: size: " << it->first.second << ", fee/byte: " << it->first.first);
m_txs_by_fee_and_receive_time.erase(it--);
}
catch (const std::exception &e)
{
MERROR("Error while pruning txpool: " << e.what());
return;
}
}
if (m_txpool_size > bytes)
MINFO("Pool size after pruning is larger than limit: " << m_txpool_size << "/" << bytes);
}
//---------------------------------------------------------------------------------
bool tx_memory_pool::insert_key_images(const transaction &tx, bool kept_by_block)
{
for(const auto& in: tx.vin)
@ -391,6 +461,7 @@ namespace cryptonote
// remove first, in case this throws, so key images aren't removed
m_blockchain.remove_txpool_tx(id);
m_txpool_size -= blob_size;
remove_transaction_keyimages(tx);
}
catch (const std::exception &e)
@ -463,6 +534,7 @@ namespace cryptonote
{
// remove first, so we only remove key images if the tx removal succeeds
m_blockchain.remove_txpool_tx(txid);
m_txpool_size -= bd.size();
remove_transaction_keyimages(tx);
}
}
@ -1125,7 +1197,9 @@ namespace cryptonote
size_t tx_size_limit = get_transaction_size_limit(version);
std::unordered_set<crypto::hash> remove;
m_txpool_size = 0;
m_blockchain.for_all_txpool_txes([this, &remove, tx_size_limit](const crypto::hash &txid, const txpool_tx_meta_t &meta, const cryptonote::blobdata*) {
m_txpool_size += meta.blob_size;
if (meta.blob_size >= tx_size_limit) {
LOG_PRINT_L1("Transaction " << txid << " is too big (" << meta.blob_size << " bytes), removing it from pool");
remove.insert(txid);
@ -1154,6 +1228,7 @@ namespace cryptonote
}
// remove tx from db first
m_blockchain.remove_txpool_tx(txid);
m_txpool_size -= txblob.size();
remove_transaction_keyimages(tx);
auto sorted_it = find_tx_in_sorted_container(txid);
if (sorted_it == m_txs_by_fee_and_receive_time.end())
@ -1176,13 +1251,15 @@ namespace cryptonote
return n_removed;
}
//---------------------------------------------------------------------------------
bool tx_memory_pool::init()
bool tx_memory_pool::init(size_t max_txpool_size)
{
CRITICAL_REGION_LOCAL(m_transactions_lock);
CRITICAL_REGION_LOCAL1(m_blockchain);
m_txpool_max_size = max_txpool_size ? max_txpool_size : DEFAULT_TXPOOL_MAX_SIZE;
m_txs_by_fee_and_receive_time.clear();
m_spent_key_images.clear();
m_txpool_size = 0;
std::vector<crypto::hash> remove;
bool r = m_blockchain.for_all_txpool_txes([this, &remove](const crypto::hash &txid, const txpool_tx_meta_t &meta, const cryptonote::blobdata *bd) {
cryptonote::transaction tx;
@ -1197,6 +1274,7 @@ namespace cryptonote
return false;
}
m_txs_by_fee_and_receive_time.emplace(std::pair<double, time_t>(meta.fee / (double)meta.blob_size, meta.receive_time), txid);
m_txpool_size += meta.blob_size;
return true;
}, true);
if (!r)

27
src/cryptonote_core/tx_pool.h
View File

@ -198,11 +198,11 @@ namespace cryptonote
/**
* @brief loads pool state (if any) from disk, and initializes pool
*
* @param config_folder folder name where pool state will be
* @param max_txpool_size the max size in bytes
*
* @return true
*/
bool init();
bool init(size_t max_txpool_size = 0);
/**
* @brief attempts to save the transaction pool state to disk
@ -362,6 +362,19 @@ namespace cryptonote
*/
size_t validate(uint8_t version);
/**
* @brief get the cumulative txpool size in bytes
*
* @return the cumulative txpool size in bytes
*/
size_t get_txpool_size() const;
/**
* @brief set the max cumulative txpool size in bytes
*
* @param bytes the max cumulative txpool size in bytes
*/
void set_txpool_max_size(size_t bytes);
#define CURRENT_MEMPOOL_ARCHIVE_VER 11
#define CURRENT_MEMPOOL_TX_DETAILS_ARCHIVE_VER 12
@ -496,6 +509,13 @@ namespace cryptonote
*/
void mark_double_spend(const transaction &tx);
/**
* @brief prune lowest fee/byte txes till we're not above bytes
*
* if bytes is 0, use m_txpool_max_size
*/
void prune(size_t bytes = 0);
//TODO: confirm the below comments and investigate whether or not this
// is the desired behavior
//! map key images to transactions which spent them
@ -542,6 +562,9 @@ private:
std::unordered_set<crypto::hash> m_timed_out_transactions;
Blockchain& m_blockchain; //!< reference to the Blockchain object
size_t m_txpool_max_size;
size_t m_txpool_size;
};
}