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Merge pull request #3876 

740da1b core: fix automatic safe db sync mode switching (moneromooo-monero)
e942d34 protocol: do not switch to unsafe sync mode for just a few blocks (moneromooo-monero)
This commit is contained in:
luigi1111 2018-05-30 15:46:13 -05:00
parent 4267a0bb51 e942d34d54
commit a7ea14dc6a
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GPG Key ID: F4ACA0183641E010
3 changed files with 9 additions and 6 deletions
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1
src/blockchain_db/lmdb/db_lmdb.cpp
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@ -1397,6 +1397,7 @@ void BlockchainLMDB::sync()
void BlockchainLMDB::safesyncmode(const bool onoff) void BlockchainLMDB::safesyncmode(const bool onoff)
{ {
MINFO("switching safe mode " << (onoff ? "on" : "off"));
mdb_env_set_flags(m_env, MDB_NOSYNC|MDB_MAPASYNC, !onoff); mdb_env_set_flags(m_env, MDB_NOSYNC|MDB_MAPASYNC, !onoff);
} }

11
src/cryptonote_core/cryptonote_core.cpp
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@ -438,6 +438,7 @@ namespace cryptonote
std::vector<std::string> options; std::vector<std::string> options;
boost::trim(db_sync_mode); boost::trim(db_sync_mode);
boost::split(options, db_sync_mode, boost::is_any_of(" :")); boost::split(options, db_sync_mode, boost::is_any_of(" :"));
const bool db_sync_mode_is_default = command_line::is_arg_defaulted(vm, cryptonote::arg_db_sync_mode);
for(const auto &option : options) for(const auto &option : options)
MDEBUG("option: " << option); MDEBUG("option: " << option);
@ -458,18 +459,18 @@ namespace cryptonote
{ {
safemode = true; safemode = true;
db_flags = DBF_SAFE; db_flags = DBF_SAFE;
sync_mode = db_nosync; sync_mode = db_sync_mode_is_default ? db_defaultsync : db_nosync;
} }
else if(options[0] == "fast") else if(options[0] == "fast")
{ {
db_flags = DBF_FAST; db_flags = DBF_FAST;
sync_mode = db_async; sync_mode = db_sync_mode_is_default ? db_defaultsync : db_async;
} }
else if(options[0] == "fastest") else if(options[0] == "fastest")
{ {
db_flags = DBF_FASTEST; db_flags = DBF_FASTEST;
blocks_per_sync = 1000; // default to fastest:async:1000 blocks_per_sync = 1000; // default to fastest:async:1000
sync_mode = db_async; sync_mode = db_sync_mode_is_default ? db_defaultsync : db_async;
} }
else else
db_flags = DEFAULT_FLAGS; db_flags = DEFAULT_FLAGS;
@ -478,9 +479,9 @@ namespace cryptonote
if(options.size() >= 2 && !safemode) if(options.size() >= 2 && !safemode)
{ {
if(options[1] == "sync") if(options[1] == "sync")
sync_mode = db_sync; sync_mode = db_sync_mode_is_default ? db_defaultsync : db_sync;
else if(options[1] == "async") else if(options[1] == "async")
sync_mode = db_async; sync_mode = db_sync_mode_is_default ? db_defaultsync : db_async;
} }
if(options.size() >= 3 && !safemode) if(options.size() >= 3 && !safemode)

1
src/cryptonote_protocol/cryptonote_protocol_handler.inl
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@ -308,6 +308,7 @@ namespace cryptonote
<< " [Your node is " << abs_diff << " blocks (" << ((abs_diff - diff_v2) / (24 * 60 * 60 / DIFFICULTY_TARGET_V1)) + (diff_v2 / (24 * 60 * 60 / DIFFICULTY_TARGET_V2)) << " days) " << " [Your node is " << abs_diff << " blocks (" << ((abs_diff - diff_v2) / (24 * 60 * 60 / DIFFICULTY_TARGET_V1)) + (diff_v2 / (24 * 60 * 60 / DIFFICULTY_TARGET_V2)) << " days) "
<< (0 <= diff ? std::string("behind") : std::string("ahead")) << (0 <= diff ? std::string("behind") : std::string("ahead"))
<< "] " << ENDL << "SYNCHRONIZATION started"); << "] " << ENDL << "SYNCHRONIZATION started");
if (hshd.current_height >= m_core.get_current_blockchain_height() + 5) // don't switch to unsafe mode just for a few blocks
m_core.safesyncmode(false); m_core.safesyncmode(false);
} }
LOG_PRINT_L1("Remote blockchain height: " << hshd.current_height << ", id: " << hshd.top_id); LOG_PRINT_L1("Remote blockchain height: " << hshd.current_height << ", id: " << hshd.top_id);