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core: sync database based on bytes added, not blocks added

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Blocks have a very wide range, whereas actual size is the relevant
quantity to consider when syncing
release-v0.5.1
moneromooo-monero 6 years ago
parent 0dddfeacc9
commit b278b83860
No known key found for this signature in database
GPG Key ID: 686F07454D6CEFC3
4 changed files with 37 additions and 16 deletions
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4
src/blockchain_db/blockchain_db.cpp
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@ -87,8 +87,8 @@ const command_line::arg_descriptor<std::string> arg_db_type = {
};
const command_line::arg_descriptor<std::string> arg_db_sync_mode = {
"db-sync-mode"
, "Specify sync option, using format [safe|fast|fastest]:[sync|async]:[nblocks_per_sync]."
, "fast:async:1000"
, "Specify sync option, using format [safe|fast|fastest]:[sync|async]:[<nblocks_per_sync>[blocks]|<nbytes_per_sync>[bytes]]."
, "fast:async:250000000bytes"
};
const command_line::arg_descriptor<bool> arg_db_salvage = {
"db-salvage"

12
src/cryptonote_core/blockchain.cpp
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@ -156,7 +156,7 @@ static const struct {
//------------------------------------------------------------------
Blockchain::Blockchain(tx_memory_pool& tx_pool) :
m_db(), m_tx_pool(tx_pool), m_hardfork(NULL), m_timestamps_and_difficulties_height(0), m_current_block_cumul_sz_limit(0), m_current_block_cumul_sz_median(0),
m_enforce_dns_checkpoints(false), m_max_prepare_blocks_threads(4), m_db_blocks_per_sync(1), m_db_sync_mode(db_async), m_db_default_sync(false), m_fast_sync(true), m_show_time_stats(false), m_sync_counter(0), m_cancel(false),
m_enforce_dns_checkpoints(false), m_max_prepare_blocks_threads(4), m_db_sync_on_blocks(true), m_db_sync_threshold(1), m_db_sync_mode(db_async), m_db_default_sync(false), m_fast_sync(true), m_show_time_stats(false), m_sync_counter(0), m_bytes_to_sync(0), m_cancel(false),
m_difficulty_for_next_block_top_hash(crypto::null_hash),
m_difficulty_for_next_block(1)
{
@ -3877,11 +3877,13 @@ bool Blockchain::cleanup_handle_incoming_blocks(bool force_sync)
store_blockchain();
m_sync_counter = 0;
}
else if (m_db_blocks_per_sync && m_sync_counter >= m_db_blocks_per_sync)
else if (m_db_sync_threshold && ((m_db_sync_on_blocks && m_sync_counter >= m_db_sync_threshold) || (!m_db_sync_on_blocks && m_bytes_to_sync >= m_db_sync_threshold)))
{
MDEBUG("Sync threshold met, syncing");
if(m_db_sync_mode == db_async)
{
m_sync_counter = 0;
m_bytes_to_sync = 0;
m_async_service.dispatch(boost::bind(&Blockchain::store_blockchain, this));
}
else if(m_db_sync_mode == db_sync)
@ -4071,6 +4073,7 @@ bool Blockchain::prepare_handle_incoming_blocks(const std::vector<block_complete
bytes += tx_blob.size();
}
}
m_bytes_to_sync += bytes;
while (!(stop_batch = m_db->batch_start(blocks_entry.size(), bytes))) {
m_blockchain_lock.unlock();
m_tx_pool.unlock();
@ -4419,7 +4422,7 @@ bool Blockchain::for_all_txpool_txes(std::function<bool(const crypto::hash&, con
return m_db->for_all_txpool_txes(f, include_blob, include_unrelayed_txes);
}
void Blockchain::set_user_options(uint64_t maxthreads, uint64_t blocks_per_sync, blockchain_db_sync_mode sync_mode, bool fast_sync)
void Blockchain::set_user_options(uint64_t maxthreads, bool sync_on_blocks, uint64_t sync_threshold, blockchain_db_sync_mode sync_mode, bool fast_sync)
{
if (sync_mode == db_defaultsync)
{
@ -4428,7 +4431,8 @@ void Blockchain::set_user_options(uint64_t maxthreads, uint64_t blocks_per_sync,
}
m_db_sync_mode = sync_mode;
m_fast_sync = fast_sync;
m_db_blocks_per_sync = blocks_per_sync;
m_db_sync_on_blocks = sync_on_blocks;
m_db_sync_threshold = sync_threshold;
m_max_prepare_blocks_threads = maxthreads;
}

9
src/cryptonote_core/blockchain.h
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@ -729,11 +729,12 @@ namespace cryptonote
* @brief sets various performance options
*
* @param maxthreads max number of threads when preparing blocks for addition
* @param blocks_per_sync number of blocks to cache before syncing to database
* @param sync_on_blocks whether to sync based on blocks or bytes
* @param sync_threshold number of blocks/bytes to cache before syncing to database
* @param sync_mode the ::blockchain_db_sync_mode to use
* @param fast_sync sync using built-in block hashes as trusted
*/
void set_user_options(uint64_t maxthreads, uint64_t blocks_per_sync,
void set_user_options(uint64_t maxthreads, bool sync_on_blocks, uint64_t sync_threshold,
blockchain_db_sync_mode sync_mode, bool fast_sync);
/**
@ -1017,11 +1018,13 @@ namespace cryptonote
bool m_fast_sync;
bool m_show_time_stats;
bool m_db_default_sync;
uint64_t m_db_blocks_per_sync;
bool m_db_sync_on_blocks;
uint64_t m_db_sync_threshold;
uint64_t m_max_prepare_blocks_threads;
uint64_t m_fake_pow_calc_time;
uint64_t m_fake_scan_time;
uint64_t m_sync_counter;
uint64_t m_bytes_to_sync;
std::vector<uint64_t> m_timestamps;
std::vector<difficulty_type> m_difficulties;
uint64_t m_timestamps_and_difficulties_height;

28
src/cryptonote_core/cryptonote_core.cpp
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@ -439,9 +439,10 @@ namespace cryptonote
MGINFO("Loading blockchain from folder " << folder.string() << " ...");
const std::string filename = folder.string();
// default to fast:async:1
// default to fast:async:1 if overridden
blockchain_db_sync_mode sync_mode = db_defaultsync;
uint64_t blocks_per_sync = 1;
bool sync_on_blocks = true;
uint64_t sync_threshold = 1;
if (m_nettype == FAKECHAIN)
{
@ -491,7 +492,7 @@ namespace cryptonote
else if(options[0] == "fastest")
{
db_flags = DBF_FASTEST;
blocks_per_sync = 1000; // default to fastest:async:1000
sync_threshold = 1000; // default to fastest:async:1000
sync_mode = db_sync_mode_is_default ? db_defaultsync : db_async;
}
else
@ -509,9 +510,22 @@ namespace cryptonote
if(options.size() >= 3 && !safemode)
{
char *endptr;
uint64_t bps = strtoull(options[2].c_str(), &endptr, 0);
if (*endptr == '\0')
blocks_per_sync = bps;
uint64_t threshold = strtoull(options[2].c_str(), &endptr, 0);
if (*endptr == '\0' || !strcmp(endptr, "blocks"))
{
sync_on_blocks = true;
sync_threshold = threshold;
}
else if (!strcmp(endptr, "bytes"))
{
sync_on_blocks = false;
sync_threshold = threshold;
}
else
{
LOG_ERROR("Invalid db sync mode: " << options[2]);
return false;
}
}
if (db_salvage)
@ -528,7 +542,7 @@ namespace cryptonote
}
m_blockchain_storage.set_user_options(blocks_threads,
blocks_per_sync, sync_mode, fast_sync);
sync_on_blocks, sync_threshold, sync_mode, fast_sync);
const std::pair<uint8_t, uint64_t> regtest_hard_forks[3] = {std::make_pair(1, 0), std::make_pair(Blockchain::get_hard_fork_heights(MAINNET).back().version, 1), std::make_pair(0, 0)};
const cryptonote::test_options regtest_test_options = {

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