void BuildLog(oid_t db_oid, oid_t table_oid) {
std::chrono::time_point<std::chrono::system_clock> start, end;
std::chrono::duration<double, std::milli> elapsed_milliseconds;
// Build a pool
auto logging_pool = new VarlenPool(BACKEND_TYPE_MM);
// Create db
CreateDatabase(db_oid);
auto& manager = catalog::Manager::GetInstance();
storage::Database* db = manager.GetDatabaseWithOid(db_oid);
// Create table, drop it and create again
// so that table can have a newly added tile group and
// not just the default tile group
storage::DataTable* table = CreateUserTable(db_oid, table_oid);
db->AddTable(table);
// Tuple count
oid_t per_backend_tuple_count = state.tuple_count / state.backend_count;
// Create Tuples
auto tuples =
CreateTuples(table->GetSchema(), per_backend_tuple_count, logging_pool);
//===--------------------------------------------------------------------===//
// ACTIVE PROCESSING
//===--------------------------------------------------------------------===//
start = std::chrono::system_clock::now();
// Execute the workload to build the log
std::vector<std::thread> thread_group;
oid_t num_threads = state.backend_count;
// Launch a group of threads
for (uint64_t thread_itr = 0; thread_itr < num_threads; ++thread_itr) {
thread_group.push_back(std::thread(RunBackends, table, tuples));
}
// Join the threads with the main thread
for (uint64_t thread_itr = 0; thread_itr < num_threads; ++thread_itr) {
thread_group[thread_itr].join();
}
end = std::chrono::system_clock::now();
elapsed_milliseconds = end - start;
// Build log time
if (state.experiment_type == EXPERIMENT_TYPE_ACTIVE ||
state.experiment_type == EXPERIMENT_TYPE_WAIT) {
WriteOutput(elapsed_milliseconds.count());
} else if (state.experiment_type == EXPERIMENT_TYPE_STORAGE) {
auto log_file_size = GetLogFileSize();
LOG_INFO("Log file size :: %lu", log_file_size);
WriteOutput(log_file_size);
}
// Clean up data
for (auto tuple : tuples) {
delete tuple;
}
// Check the tuple count if needed
if (state.check_tuple_count) {
oid_t total_expected = 0;
CheckTupleCount(db_oid, table_oid, total_expected);
}
// We can only drop the table in case of WAL
if (IsBasedOnWriteAheadLogging(peloton_logging_mode) == true) {
db->DropTableWithOid(table_oid);
DropDatabase(db_oid);
}
}
bool CUserMgr::OnCreateTables()
{//
return CreateUserTable();
}
