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Merge pull request #5647

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2ff99fb db_lmdb: commit pruning txn at checkpoints (moneromooo-monero)
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luigi1111 2019-07-04 14:41:36 -05:00
commit 591c72613b
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GPG Key ID: F4ACA0183641E010
1 changed files with 50 additions and 1 deletions
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51
src/blockchain_db/lmdb/db_lmdb.cpp
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@ -1953,7 +1953,7 @@ bool BlockchainLMDB::prune_worker(int mode, uint32_t pruning_seed)
TIME_MEASURE_START(t);
size_t n_total_records = 0, n_prunable_records = 0, n_pruned_records = 0;
size_t n_total_records = 0, n_prunable_records = 0, n_pruned_records = 0, commit_counter = 0;
uint64_t n_bytes = 0;
mdb_txn_safe txn;
@ -2056,6 +2056,7 @@ bool BlockchainLMDB::prune_worker(int mode, uint32_t pruning_seed)
{
MDEBUG("Pruning at height " << block_height << "/" << blockchain_height);
++n_pruned_records;
++commit_counter;
n_bytes += k.mv_size + v.mv_size;
result = mdb_cursor_del(c_txs_prunable, 0);
if (result)
@ -2065,6 +2066,25 @@ bool BlockchainLMDB::prune_worker(int mode, uint32_t pruning_seed)
result = mdb_cursor_del(c_txs_prunable_tip, 0);
if (result)
throw0(DB_ERROR(lmdb_error("Failed to delete transaction tip data: ", result).c_str()));
if (mode != prune_mode_check && commit_counter >= 4096)
{
MDEBUG("Committing txn at checkpoint...");
txn.commit();
result = mdb_txn_begin(m_env, NULL, 0, txn);
if (result)
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", result).c_str()));
result = mdb_cursor_open(txn, m_txs_pruned, &c_txs_pruned);
if (result)
throw0(DB_ERROR(lmdb_error("Failed to open a cursor for txs_pruned: ", result).c_str()));
result = mdb_cursor_open(txn, m_txs_prunable, &c_txs_prunable);
if (result)
throw0(DB_ERROR(lmdb_error("Failed to open a cursor for txs_prunable: ", result).c_str()));
result = mdb_cursor_open(txn, m_txs_prunable_tip, &c_txs_prunable_tip);
if (result)
throw0(DB_ERROR(lmdb_error("Failed to open a cursor for txs_prunable_tip: ", result).c_str()));
commit_counter = 0;
}
}
}
}
@ -2134,6 +2154,7 @@ bool BlockchainLMDB::prune_worker(int mode, uint32_t pruning_seed)
result = mdb_cursor_del(c_txs_prunable, 0);
if (result)
throw0(DB_ERROR(lmdb_error("Failed to delete transaction prunable data: ", result).c_str()));
++commit_counter;
}
}
}
@ -2150,6 +2171,34 @@ bool BlockchainLMDB::prune_worker(int mode, uint32_t pruning_seed)
", seed " << epee::string_tools::to_string_hex(pruning_seed));
}
}
if (mode != prune_mode_check && commit_counter >= 4096)
{
MDEBUG("Committing txn at checkpoint...");
txn.commit();
result = mdb_txn_begin(m_env, NULL, 0, txn);
if (result)
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", result).c_str()));
result = mdb_cursor_open(txn, m_txs_pruned, &c_txs_pruned);
if (result)
throw0(DB_ERROR(lmdb_error("Failed to open a cursor for txs_pruned: ", result).c_str()));
result = mdb_cursor_open(txn, m_txs_prunable, &c_txs_prunable);
if (result)
throw0(DB_ERROR(lmdb_error("Failed to open a cursor for txs_prunable: ", result).c_str()));
result = mdb_cursor_open(txn, m_txs_prunable_tip, &c_txs_prunable_tip);
if (result)
throw0(DB_ERROR(lmdb_error("Failed to open a cursor for txs_prunable_tip: ", result).c_str()));
result = mdb_cursor_open(txn, m_tx_indices, &c_tx_indices);
if (result)
throw0(DB_ERROR(lmdb_error("Failed to open a cursor for tx_indices: ", result).c_str()));
MDB_val val;
val.mv_size = sizeof(ti);
val.mv_data = (void *)&ti;
result = mdb_cursor_get(c_tx_indices, (MDB_val*)&zerokval, &val, MDB_GET_BOTH);
if (result)
throw0(DB_ERROR(lmdb_error("Failed to restore cursor for tx_indices: ", result).c_str()));
commit_counter = 0;
}
}
mdb_cursor_close(c_tx_indices);
}