diff options
| -rw-r--r-- | src/blockchain_db/lmdb/db_lmdb.cpp | 61 |
1 files changed, 52 insertions, 9 deletions
diff --git a/src/blockchain_db/lmdb/db_lmdb.cpp b/src/blockchain_db/lmdb/db_lmdb.cpp index 7efd93a01..96afdb0ea 100644 --- a/src/blockchain_db/lmdb/db_lmdb.cpp +++ b/src/blockchain_db/lmdb/db_lmdb.cpp @@ -377,7 +377,50 @@ void mdb_txn_safe::allow_new_txns() creation_gate.clear(); } +void lmdb_resized(MDB_env *env) +{ + mdb_txn_safe::prevent_new_txns(); + + MGINFO("LMDB map resize detected."); + + MDB_envinfo mei; + + mdb_env_info(env, &mei); + uint64_t old = mei.me_mapsize; + + mdb_txn_safe::wait_no_active_txns(); + + int result = mdb_env_set_mapsize(env, 0); + if (result) + throw0(DB_ERROR(lmdb_error("Failed to set new mapsize: ", result).c_str())); + + mdb_env_info(env, &mei); + uint64_t new_mapsize = mei.me_mapsize; + MGINFO("LMDB Mapsize increased." << " Old: " << old / (1024 * 1024) << "MiB" << ", New: " << new_mapsize / (1024 * 1024) << "MiB"); + + mdb_txn_safe::allow_new_txns(); +} + +inline int lmdb_txn_begin(MDB_env *env, MDB_txn *parent, unsigned int flags, MDB_txn **txn) +{ + int res = mdb_txn_begin(env, parent, flags, txn); + if (res == MDB_MAP_RESIZED) { + lmdb_resized(env); + res = mdb_txn_begin(env, parent, flags, txn); + } + return res; +} + +inline int lmdb_txn_renew(MDB_txn *txn) +{ + int res = mdb_txn_renew(txn); + if (res == MDB_MAP_RESIZED) { + lmdb_resized(mdb_txn_env(txn)); + res = mdb_txn_renew(txn); + } + return res; +} void BlockchainLMDB::do_resize(uint64_t increase_size) { @@ -1259,7 +1302,7 @@ void BlockchainLMDB::reset() check_open(); mdb_txn_safe txn; - if (auto result = mdb_txn_begin(m_env, NULL, 0, txn)) + if (auto result = lmdb_txn_begin(m_env, NULL, 0, txn)) throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", result).c_str())); if (auto result = mdb_drop(txn, m_blocks, 0)) @@ -1342,7 +1385,7 @@ void BlockchainLMDB::unlock() txn_ptr = m_write_txn; \ else \ { \ - if (auto mdb_res = mdb_txn_begin(m_env, NULL, flags, auto_txn)) \ + if (auto mdb_res = lmdb_txn_begin(m_env, NULL, flags, auto_txn)) \ throw0(DB_ERROR(lmdb_error(std::string("Failed to create a transaction for the db in ")+__FUNCTION__+": ", mdb_res).c_str())); \ } \ @@ -1376,7 +1419,7 @@ void BlockchainLMDB::unlock() txn_ptr = m_write_txn; \ else \ { \ - if (auto mdb_res = mdb_txn_begin(m_env, NULL, flags, auto_txn)) \ + if (auto mdb_res = lmdb_txn_begin(m_env, NULL, flags, auto_txn)) \ throw0(DB_ERROR(lmdb_error(std::string("Failed to create a transaction for the db in ")+__FUNCTION__+": ", mdb_res).c_str())); \ } \ @@ -2295,7 +2338,7 @@ bool BlockchainLMDB::batch_start(uint64_t batch_num_blocks) m_write_batch_txn = new mdb_txn_safe(); // NOTE: need to make sure it's destroyed properly when done - if (auto mdb_res = mdb_txn_begin(m_env, NULL, 0, *m_write_batch_txn)) + if (auto mdb_res = lmdb_txn_begin(m_env, NULL, 0, *m_write_batch_txn)) { delete m_write_batch_txn; m_write_batch_txn = nullptr; @@ -2414,12 +2457,12 @@ bool BlockchainLMDB::block_rtxn_start(MDB_txn **mtxn, mdb_txn_cursors **mcur) co m_tinfo.reset(new mdb_threadinfo); memset(&m_tinfo->m_ti_rcursors, 0, sizeof(m_tinfo->m_ti_rcursors)); memset(&m_tinfo->m_ti_rflags, 0, sizeof(m_tinfo->m_ti_rflags)); - if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, &m_tinfo->m_ti_rtxn)) + if (auto mdb_res = lmdb_txn_begin(m_env, NULL, MDB_RDONLY, &m_tinfo->m_ti_rtxn)) throw0(DB_ERROR_TXN_START(lmdb_error("Failed to create a read transaction for the db: ", mdb_res).c_str())); ret = true; } else if (!m_tinfo->m_ti_rflags.m_rf_txn) { - if (auto mdb_res = mdb_txn_renew(m_tinfo->m_ti_rtxn)) + if (auto mdb_res = lmdb_txn_renew(m_tinfo->m_ti_rtxn)) throw0(DB_ERROR_TXN_START(lmdb_error("Failed to renew a read transaction for the db: ", mdb_res).c_str())); ret = true; } @@ -2452,12 +2495,12 @@ void BlockchainLMDB::block_txn_start(bool readonly) m_tinfo.reset(new mdb_threadinfo); memset(&m_tinfo->m_ti_rcursors, 0, sizeof(m_tinfo->m_ti_rcursors)); memset(&m_tinfo->m_ti_rflags, 0, sizeof(m_tinfo->m_ti_rflags)); - if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, &m_tinfo->m_ti_rtxn)) + if (auto mdb_res = lmdb_txn_begin(m_env, NULL, MDB_RDONLY, &m_tinfo->m_ti_rtxn)) throw0(DB_ERROR_TXN_START(lmdb_error("Failed to create a read transaction for the db: ", mdb_res).c_str())); didit = true; } else if (!m_tinfo->m_ti_rflags.m_rf_txn) { - if (auto mdb_res = mdb_txn_renew(m_tinfo->m_ti_rtxn)) + if (auto mdb_res = lmdb_txn_renew(m_tinfo->m_ti_rtxn)) throw0(DB_ERROR_TXN_START(lmdb_error("Failed to renew a read transaction for the db: ", mdb_res).c_str())); didit = true; } @@ -2483,7 +2526,7 @@ void BlockchainLMDB::block_txn_start(bool readonly) { m_writer = boost::this_thread::get_id(); m_write_txn = new mdb_txn_safe(); - if (auto mdb_res = mdb_txn_begin(m_env, NULL, 0, *m_write_txn)) + if (auto mdb_res = lmdb_txn_begin(m_env, NULL, 0, *m_write_txn)) { delete m_write_txn; m_write_txn = nullptr; |