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Use batch transactions when syncing

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Faster throughput while avoiding corruption. I.e., makes
running with --db-sync-mode safe more tolerable.
This commit is contained in:
Howard Chu 2016-12-26 14:29:46 -08:00 • committed by Howard Chu
parent 374762654e
commit 0693cff925
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GPG key ID: FD2A70B44AB11BA7
8 changed files with 23 additions and 15 deletions
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7
src/blockchain_db/lmdb/db_lmdb.cpp
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@ -2234,15 +2234,15 @@ bool BlockchainLMDB::for_all_outputs(std::function<bool(uint64_t amount, const c
}
// batch_num_blocks: (optional) Used to check if resize needed before batch transaction starts.
void BlockchainLMDB::batch_start(uint64_t batch_num_blocks)
bool BlockchainLMDB::batch_start(uint64_t batch_num_blocks)
{
LOG_PRINT_L3("BlockchainLMDB::" << __func__);
if (! m_batch_transactions)
throw0(DB_ERROR("batch transactions not enabled"));
if (m_batch_active)
throw0(DB_ERROR("batch transaction already in progress"));
return false;
if (m_write_batch_txn != nullptr)
throw0(DB_ERROR("batch transaction already in progress"));
return false;
if (m_write_txn)
throw0(DB_ERROR("batch transaction attempted, but m_write_txn already in use"));
check_open();
@ -2268,6 +2268,7 @@ void BlockchainLMDB::batch_start(uint64_t batch_num_blocks)
memset(&m_wcursors, 0, sizeof(m_wcursors));
LOG_PRINT_L3("batch transaction: begin");
return true;
}
void BlockchainLMDB::batch_commit()