diff --git a/src/blockchain_db/lmdb/db_lmdb.cpp b/src/blockchain_db/lmdb/db_lmdb.cpp index 5c20c8de4..fbf7629c6 100644 --- a/src/blockchain_db/lmdb/db_lmdb.cpp +++ b/src/blockchain_db/lmdb/db_lmdb.cpp @@ -1346,6 +1346,7 @@ void BlockchainLMDB::sync() void BlockchainLMDB::safesyncmode(const bool onoff) { + MINFO("switching safe mode " << (onoff ? "on" : "off")); mdb_env_set_flags(m_env, MDB_NOSYNC|MDB_MAPASYNC, !onoff); } diff --git a/src/cryptonote_core/cryptonote_core.cpp b/src/cryptonote_core/cryptonote_core.cpp index 01cd56a11..668e7a2b7 100644 --- a/src/cryptonote_core/cryptonote_core.cpp +++ b/src/cryptonote_core/cryptonote_core.cpp @@ -438,6 +438,7 @@ namespace cryptonote std::vector options; boost::trim(db_sync_mode); 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) MDEBUG("option: " << option); @@ -458,18 +459,18 @@ namespace cryptonote { safemode = true; db_flags = DBF_SAFE; - sync_mode = db_nosync; + sync_mode = db_sync_mode_is_default ? db_defaultsync : db_nosync; } else if(options[0] == "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") { db_flags = DBF_FASTEST; 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 db_flags = DEFAULT_FLAGS; @@ -478,9 +479,9 @@ namespace cryptonote if(options.size() >= 2 && !safemode) { if(options[1] == "sync") - sync_mode = db_sync; + sync_mode = db_sync_mode_is_default ? db_defaultsync : db_sync; 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) diff --git a/src/cryptonote_protocol/cryptonote_protocol_handler.inl b/src/cryptonote_protocol/cryptonote_protocol_handler.inl index 711605597..91c6c5d5e 100644 --- a/src/cryptonote_protocol/cryptonote_protocol_handler.inl +++ b/src/cryptonote_protocol/cryptonote_protocol_handler.inl @@ -308,7 +308,8 @@ 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) " << (0 <= diff ? std::string("behind") : std::string("ahead")) << "] " << ENDL << "SYNCHRONIZATION started"); - m_core.safesyncmode(false); + 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); } LOG_PRINT_L1("Remote blockchain height: " << hshd.current_height << ", id: " << hshd.top_id); context.m_state = cryptonote_connection_context::state_synchronizing;