| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| **/ |
| |
| /* A standalone command-line interface to QuickStep */ |
| |
| #include <chrono> |
| #include <cstddef> |
| #include <cstdio> |
| #include <exception> |
| #include <memory> |
| #include <string> |
| #include <utility> |
| #include <vector> |
| #include <fstream> |
| |
| // TODO(jmp): If filesystem shows up in C++-17, we can switch to just using that. |
| #ifdef QUICKSTEP_OS_WINDOWS |
| #include <filesystem> |
| #else |
| #include <stdlib.h> |
| #endif |
| |
| #include "cli/CliConfig.h" // For QUICKSTEP_USE_LINENOISE, QUICKSTEP_ENABLE_GOOGLE_PROFILER. |
| #include "cli/CommandExecutor.hpp" |
| #include "cli/DropRelation.hpp" |
| |
| #ifdef QUICKSTEP_USE_LINENOISE |
| #include "cli/LineReaderLineNoise.hpp" |
| typedef quickstep::LineReaderLineNoise LineReaderImpl; |
| #else |
| #include "cli/LineReaderDumb.hpp" |
| typedef quickstep::LineReaderDumb LineReaderImpl; |
| #endif |
| |
| #ifdef QUICKSTEP_ENABLE_GOOGLE_PROFILER |
| #include <gperftools/profiler.h> |
| #endif |
| |
| #include "catalog/CatalogDatabase.hpp" |
| #include "catalog/CatalogRelation.hpp" |
| #include "catalog/CatalogRelationConstraints.hpp" |
| #include "cli/DefaultsConfigurator.hpp" |
| #include "cli/InputParserUtil.hpp" |
| #include "cli/PrintToScreen.hpp" |
| #include "parser/ParseStatement.hpp" |
| #include "parser/SqlParserWrapper.hpp" |
| #include "query_execution/AdmitRequestMessage.hpp" |
| #include "query_execution/ForemanSingleNode.hpp" |
| #include "query_execution/QueryExecutionTypedefs.hpp" |
| #include "query_execution/QueryExecutionUtil.hpp" |
| #include "query_execution/Worker.hpp" |
| #include "query_execution/WorkerDirectory.hpp" |
| #include "query_execution/WorkerMessage.hpp" |
| #include "query_optimizer/QueryHandle.hpp" |
| #include "query_optimizer/QueryPlan.hpp" |
| #include "query_optimizer/QueryProcessor.hpp" |
| #include "storage/StorageConfig.h" // For QUICKSTEP_HAVE_FILE_MANAGER_HDFS. |
| |
| #ifdef QUICKSTEP_HAVE_FILE_MANAGER_HDFS |
| #include "storage/FileManagerHdfs.hpp" |
| #endif |
| |
| #include "storage/PreloaderThread.hpp" |
| #include "threading/ThreadIDBasedMap.hpp" |
| #include "utility/EventProfiler.hpp" |
| #include "utility/ExecutionDAGVisualizer.hpp" |
| #include "utility/Macros.hpp" |
| #include "utility/PtrVector.hpp" |
| #include "utility/SqlError.hpp" |
| #include "utility/StringUtil.hpp" |
| |
| #include "gflags/gflags.h" |
| |
| #include "glog/logging.h" |
| |
| #include "tmb/address.h" |
| #include "tmb/id_typedefs.h" |
| #include "tmb/message_bus.h" |
| #include "tmb/message_style.h" |
| |
| #include "google/protobuf/text_format.h" |
| |
| namespace quickstep { |
| class CatalogRelation; |
| } |
| |
| using std::fflush; |
| using std::fprintf; |
| using std::printf; |
| using std::string; |
| using std::vector; |
| |
| using quickstep::Address; |
| using quickstep::AdmitRequestMessage; |
| using quickstep::CatalogRelation; |
| using quickstep::DefaultsConfigurator; |
| using quickstep::DropRelation; |
| using quickstep::ForemanSingleNode; |
| using quickstep::InputParserUtil; |
| using quickstep::MessageBusImpl; |
| using quickstep::MessageStyle; |
| using quickstep::ParseCommand; |
| using quickstep::ParseResult; |
| using quickstep::ParseStatement; |
| using quickstep::PrintToScreen; |
| using quickstep::PtrVector; |
| using quickstep::QueryExecutionUtil; |
| using quickstep::QueryHandle; |
| using quickstep::QueryPlan; |
| using quickstep::QueryProcessor; |
| using quickstep::SqlParserWrapper; |
| using quickstep::Worker; |
| using quickstep::WorkerDirectory; |
| using quickstep::WorkerMessage; |
| using quickstep::kAdmitRequestMessage; |
| using quickstep::kPoisonMessage; |
| using quickstep::kWorkloadCompletionMessage; |
| |
| using tmb::client_id; |
| |
| namespace quickstep { |
| |
| #ifdef QUICKSTEP_OS_WINDOWS |
| static constexpr char kPathSeparator = '\\'; |
| static constexpr char kDefaultStoragePath[] = "qsstor\\"; |
| #else |
| static constexpr char kPathSeparator = '/'; |
| static constexpr char kDefaultStoragePath[] = "qsstor/"; |
| #endif |
| |
| DEFINE_bool(profile_and_report_workorder_perf, false, |
| "If true, Quickstep will record the exceution time of all the individual " |
| "normal work orders and report it at the end of query execution."); |
| DEFINE_int32(num_workers, 0, "Number of worker threads. If this value is " |
| "specified and is greater than 0, then this " |
| "user-supplied value is used. Else (i.e. the" |
| "default case), we examine the reported " |
| "hardware concurrency level, and use that."); |
| DEFINE_bool(preload_buffer_pool, false, |
| "If true, pre-load all known blocks into buffer pool before " |
| "accepting queries (should also set --buffer_pool_slots to be " |
| "large enough to accomodate the entire database)."); |
| DEFINE_string(storage_path, kDefaultStoragePath, |
| "Filesystem path to store the Quickstep database."); |
| DEFINE_string(worker_affinities, "", |
| "A comma-separated list of CPU IDs to pin worker threads to " |
| "(leaving this empty will cause all worker threads to inherit " |
| "the affinity mask of the Quickstep process, which typically " |
| "means that they will all be runable on any CPU according to " |
| "the kernel's own scheduling policy)."); |
| DEFINE_bool(initialize_db, false, "If true, initialize a database."); |
| DEFINE_bool(print_query, false, |
| "Print each input query statement. This is useful when running a " |
| "large number of queries in a batch."); |
| DEFINE_string(profile_file_name, "", |
| "If nonempty, enable profiling using GOOGLE CPU Profiler, and write " |
| "its output to the given file name. This flag has no effect if " |
| "ENABLE_GOOGLE_PROFILER CMake flag was not set during build. " |
| "The profiler only starts collecting samples after the first query, " |
| "so that it runs against a warm buffer pool and caches. If you want to profile " |
| "everything, including the first query run, set the " |
| "environment variable CPUPROFILE instead of passing this flag."); |
| // Here's a detailed explanation of why we skip the first query run |
| // during profiling: |
| // Unless you’ve preloaded the buffer pool (which is not always a good |
| // idea), the first run of the query results in disk I/O and other overhead |
| // that significantly skews the profiling results. It’s the same reason we don’t |
| // include the first run time in our benchmarking: when profiling query |
| // execution, it makes more sense to get numbers using a warm buffer pool and |
| // warm caches. This is not *always* the right thing to do: it’s obviously |
| // wrong for profiling the TextScan operator. In those cases, you might want |
| // to put in your own Profiler probes (just follow the start/stop pattern used |
| // in this file) or just run quickstep with the CPUPROFILE environment variable |
| // set (as per gperftools documentation) to get the full profile for the |
| // entire execution. |
| // To put things in perspective, the first run is, in my experiments, about 5-10 |
| // times more expensive than the average run. That means the query needs to be |
| // run at least a hundred times to make the impact of the first run small (< 5 %). |
| DEFINE_bool(visualize_execution_dag, false, |
| "If true, visualize the execution plan DAG into a graph in DOT " |
| "format (DOT is a plain text graph description language) which is " |
| "then printed via stderr."); |
| DEFINE_string(profile_output, "", |
| "Output file name for writing the profiled events."); |
| |
| } // namespace quickstep |
| |
| void addPrimaryKeyInfoForTPCHTables(quickstep::CatalogDatabase *database) { |
| const std::vector<std::pair<std::string, std::vector<std::string>>> rel_pkeys = { |
| { "region", { "r_regionkey" } }, |
| { "nation", { "n_nationkey" } }, |
| { "supplier", { "s_suppkey" } }, |
| { "customer", { "c_custkey" } }, |
| { "part", { "p_partkey" } }, |
| { "partsupp", { "ps_partkey", "ps_suppkey" } }, |
| { "orders", { "o_orderkey" } } |
| }; |
| for (const auto &rel_pair : rel_pkeys) { |
| CatalogRelation *rel = database->getRelationByNameMutable(rel_pair.first); |
| std::vector<quickstep::attribute_id> attrs; |
| for (const auto &pkey : rel_pair.second) { |
| attrs.emplace_back(rel->getAttributeByName(pkey)->getID()); |
| } |
| rel->getConstraintsMutable()->setPrimaryKey(attrs); |
| } |
| } |
| |
| void addPrimaryKeyInfoForSSBTables(quickstep::CatalogDatabase *database) { |
| const std::vector<std::pair<std::string, std::vector<std::string>>> rel_pkeys = { |
| { "supplier", { "s_suppkey" } }, |
| { "customer", { "c_custkey" } }, |
| { "part", { "p_partkey" } }, |
| { "ddate", { "d_datekey" } } |
| }; |
| for (const auto &rel_pair : rel_pkeys) { |
| CatalogRelation *rel = database->getRelationByNameMutable(rel_pair.first); |
| std::vector<quickstep::attribute_id> attrs; |
| for (const auto &pkey : rel_pair.second) { |
| attrs.emplace_back(rel->getAttributeByName(pkey)->getID()); |
| } |
| rel->getConstraintsMutable()->setPrimaryKey(attrs); |
| } |
| } |
| |
| int main(int argc, char* argv[]) { |
| google::InitGoogleLogging(argv[0]); |
| gflags::ParseCommandLineFlags(&argc, &argv, true); |
| |
| // Detect the hardware concurrency level. |
| const std::size_t num_hw_threads = |
| DefaultsConfigurator::GetNumHardwareThreads(); |
| |
| // Use the command-line value if that was supplied, else use the value |
| // that we computed above, provided it did return a valid value. |
| // TODO(jmp): May need to change this at some point to keep one thread |
| // available for the OS if the hardware concurrency level is high. |
| if (quickstep::FLAGS_num_workers <= 0) { |
| LOG(INFO) << "Quickstep expects at least one worker thread, switching to " |
| "the default number of worker threads"; |
| } |
| const int real_num_workers = quickstep::FLAGS_num_workers > 0 |
| ? quickstep::FLAGS_num_workers |
| : (num_hw_threads != 0 ? num_hw_threads : 1); |
| |
| DCHECK_GT(real_num_workers, 0); |
| printf("Starting Quickstep with %d worker thread(s) and a %.2f GB buffer pool\n", |
| real_num_workers, |
| (static_cast<double>(quickstep::FLAGS_buffer_pool_slots) * quickstep::kSlotSizeBytes)/quickstep::kAGigaByte); |
| |
| #ifdef QUICKSTEP_HAVE_FILE_MANAGER_HDFS |
| if (quickstep::FLAGS_use_hdfs) { |
| LOG(INFO) << "Using HDFS as the default persistent storage, with namenode at " |
| << quickstep::FLAGS_hdfs_namenode_host << ":" |
| << quickstep::FLAGS_hdfs_namenode_port << " and block replication factor " |
| << quickstep::FLAGS_hdfs_num_replications << "\n"; |
| } |
| #endif |
| |
| // Initialize the thread ID based map here before the Foreman and workers are |
| // constructed because the initialization isn't thread safe. |
| quickstep::ClientIDMap::Instance(); |
| |
| MessageBusImpl bus; |
| bus.Initialize(); |
| |
| // The TMB client id for the main thread, used to kill workers at the end. |
| const client_id main_thread_client_id = bus.Connect(); |
| bus.RegisterClientAsSender(main_thread_client_id, kAdmitRequestMessage); |
| bus.RegisterClientAsSender(main_thread_client_id, kPoisonMessage); |
| bus.RegisterClientAsReceiver(main_thread_client_id, kWorkloadCompletionMessage); |
| |
| // Setup the paths used by StorageManager. |
| string fixed_storage_path(quickstep::FLAGS_storage_path); |
| if (!fixed_storage_path.empty() |
| && (fixed_storage_path.back() != quickstep::kPathSeparator)) { |
| fixed_storage_path.push_back(quickstep::kPathSeparator); |
| } |
| |
| string catalog_path(fixed_storage_path); |
| catalog_path.append("catalog.pb.bin"); |
| if (quickstep::FLAGS_initialize_db) { // Initialize the database |
| // TODO(jmp): Refactor the code in this file! |
| LOG(INFO) << "Initializing the database, creating a new catalog file and storage directory\n"; |
| |
| // Create the directory |
| // TODO(jmp): At some point, likely in C++-17, we will just have the |
| // filesystem path, and we can clean this up |
| #ifdef QUICKSTEP_OS_WINDOWS |
| std::filesystem::create_directories(fixed_storage_path); |
| LOG(FATAL) << "Failed when attempting to create the directory: " << fixed_storage_path << "\n"; |
| LOG(FATAL) << "Check if the directory already exists. If so, delete it or move it before initializing \n"; |
| #else |
| { |
| string path_name = "mkdir " + fixed_storage_path; |
| if (std::system(path_name.c_str())) { |
| LOG(FATAL) << "Failed when attempting to create the directory: " << fixed_storage_path << "\n"; |
| } |
| } |
| #endif |
| |
| // Create the default catalog file. |
| std::ofstream catalog_file(catalog_path); |
| if (!catalog_file.good()) { |
| LOG(FATAL) << "ERROR: Unable to open catalog.pb.bin for writing.\n"; |
| } |
| |
| quickstep::Catalog catalog; |
| catalog.addDatabase(new quickstep::CatalogDatabase(nullptr, "default")); |
| |
| if (!catalog.getProto().SerializeToOstream(&catalog_file)) { |
| LOG(FATAL) << "ERROR: Unable to serialize catalog proto to file catalog.pb.bin\n"; |
| return 1; |
| } |
| |
| // Close the catalog file - it will be reopened below by the QueryProcessor. |
| catalog_file.close(); |
| } |
| |
| // Setup QueryProcessor, including CatalogDatabase and StorageManager. |
| std::unique_ptr<QueryProcessor> query_processor; |
| try { |
| query_processor.reset(new QueryProcessor(catalog_path, fixed_storage_path)); |
| } catch (const std::exception &e) { |
| LOG(FATAL) << "FATAL ERROR DURING STARTUP: " |
| << e.what() |
| << "\nIf you intended to create a new database, " |
| << "please use the \"-initialize_db=true\" command line option."; |
| } catch (...) { |
| LOG(FATAL) << "NON-STANDARD EXCEPTION DURING STARTUP"; |
| } |
| |
| // addPrimaryKeyInfoForTPCHTables(query_processor->getDefaultDatabase()); |
| // addPrimaryKeyInfoForSSBTables(query_processor->getDefaultDatabase()); |
| // std::string proto_str; |
| // google::protobuf::TextFormat::PrintToString( |
| // query_processor->getDefaultDatabase()->getProto(), &proto_str); |
| // std::cerr << proto_str << "\n"; |
| // query_processor->markCatalogAltered(); |
| // query_processor->saveCatalog(); |
| |
| // Parse the CPU affinities for workers and the preloader thread, if enabled |
| // to warm up the buffer pool. |
| const vector<int> worker_cpu_affinities = |
| InputParserUtil::ParseWorkerAffinities(real_num_workers, |
| quickstep::FLAGS_worker_affinities); |
| |
| const std::size_t num_numa_nodes_system = DefaultsConfigurator::GetNumNUMANodes(); |
| |
| if (quickstep::FLAGS_preload_buffer_pool) { |
| std::chrono::time_point<std::chrono::steady_clock> preload_start, preload_end; |
| preload_start = std::chrono::steady_clock::now(); |
| printf("Preloading the buffer pool ... "); |
| fflush(stdout); |
| quickstep::PreloaderThread preloader(*query_processor->getDefaultDatabase(), |
| query_processor->getStorageManager(), |
| worker_cpu_affinities.front()); |
| |
| preloader.start(); |
| preloader.join(); |
| preload_end = std::chrono::steady_clock::now(); |
| printf("in %g seconds\n", |
| std::chrono::duration<double>(preload_end - preload_start).count()); |
| } |
| |
| // Get the NUMA affinities for workers. |
| vector<int> cpu_numa_nodes = InputParserUtil::GetNUMANodesForCPUs(); |
| if (cpu_numa_nodes.empty()) { |
| // libnuma is not present. Assign -1 as the NUMA node for every worker. |
| cpu_numa_nodes.assign(worker_cpu_affinities.size(), -1); |
| } |
| |
| vector<int> worker_numa_nodes; |
| PtrVector<Worker> workers; |
| vector<client_id> worker_client_ids; |
| |
| // Initialize the worker threads. |
| DCHECK_EQ(static_cast<std::size_t>(real_num_workers), |
| worker_cpu_affinities.size()); |
| for (std::size_t worker_thread_index = 0; |
| worker_thread_index < worker_cpu_affinities.size(); |
| ++worker_thread_index) { |
| int numa_node_id = -1; |
| if (worker_cpu_affinities[worker_thread_index] >= 0) { |
| // This worker can be NUMA affinitized. |
| numa_node_id = cpu_numa_nodes[worker_cpu_affinities[worker_thread_index]]; |
| } |
| worker_numa_nodes.push_back(numa_node_id); |
| |
| workers.push_back( |
| new Worker(worker_thread_index, &bus, worker_cpu_affinities[worker_thread_index])); |
| worker_client_ids.push_back(workers.back().getBusClientID()); |
| } |
| |
| // TODO(zuyu): Move WorkerDirectory within Shiftboss once the latter is added. |
| WorkerDirectory worker_directory(worker_cpu_affinities.size(), |
| worker_client_ids, |
| worker_numa_nodes); |
| |
| ForemanSingleNode foreman( |
| main_thread_client_id, |
| &worker_directory, |
| &bus, |
| query_processor->getDefaultDatabase(), |
| query_processor->getStorageManager(), |
| -1, // Don't pin the Foreman thread. |
| num_numa_nodes_system, |
| quickstep::FLAGS_profile_and_report_workorder_perf || quickstep::FLAGS_visualize_execution_dag); |
| |
| // Start the worker threads. |
| for (Worker &worker : workers) { |
| worker.start(); |
| } |
| |
| foreman.start(); |
| |
| LineReaderImpl line_reader("quickstep> ", |
| " ...> "); |
| std::unique_ptr<SqlParserWrapper> parser_wrapper(new SqlParserWrapper()); |
| std::chrono::time_point<std::chrono::steady_clock> start, end; |
| |
| #ifdef QUICKSTEP_ENABLE_GOOGLE_PROFILER |
| bool started_profiling = false; |
| #endif |
| for (;;) { |
| string *command_string = new string(); |
| *command_string = line_reader.getNextCommand(); |
| if (command_string->size() == 0) { |
| delete command_string; |
| break; |
| } |
| |
| if (quickstep::FLAGS_print_query) { |
| printf("\n%s\n", command_string->c_str()); |
| } |
| |
| parser_wrapper->feedNextBuffer(command_string); |
| |
| bool quitting = false; |
| // A parse error should reset the parser. This is because the thrown quickstep |
| // SqlError does not do the proper reset work of the YYABORT macro. |
| bool reset_parser = false; |
| for (;;) { |
| ParseResult result = parser_wrapper->getNextStatement(); |
| const ParseStatement &statement = *result.parsed_statement; |
| if (result.condition == ParseResult::kSuccess) { |
| if (statement.getStatementType() == ParseStatement::kQuit) { |
| quitting = true; |
| break; |
| } |
| |
| if (statement.getStatementType() == ParseStatement::kCommand) { |
| try { |
| quickstep::cli::executeCommand( |
| statement, |
| *(query_processor->getDefaultDatabase()), |
| main_thread_client_id, |
| foreman.getBusClientID(), |
| &bus, |
| query_processor->getStorageManager(), |
| query_processor.get(), |
| stdout); |
| } catch (const quickstep::SqlError &sql_error) { |
| fprintf(stderr, "%s", |
| sql_error.formatMessage(*command_string).c_str()); |
| reset_parser = true; |
| break; |
| } |
| continue; |
| } |
| |
| std::unique_ptr<QueryHandle> query_handle( |
| std::make_unique<QueryHandle>(query_processor->query_id(), |
| main_thread_client_id, |
| statement.getPriority())); |
| try { |
| query_processor->generateQueryHandle(statement, query_handle.get()); |
| } catch (const quickstep::SqlError &sql_error) { |
| fprintf(stderr, "%s", sql_error.formatMessage(*command_string).c_str()); |
| reset_parser = true; |
| break; |
| } |
| |
| DCHECK(query_handle->getQueryPlanMutable() != nullptr); |
| std::unique_ptr<quickstep::ExecutionDAGVisualizer> dag_visualizer; |
| if (quickstep::FLAGS_visualize_execution_dag) { |
| dag_visualizer.reset( |
| new quickstep::ExecutionDAGVisualizer(*query_handle->getQueryPlanMutable())); |
| } |
| |
| quickstep::simple_profiler.clear(); |
| start = std::chrono::steady_clock::now(); |
| QueryExecutionUtil::ConstructAndSendAdmitRequestMessage( |
| main_thread_client_id, |
| foreman.getBusClientID(), |
| query_handle.get(), |
| &bus); |
| |
| try { |
| QueryExecutionUtil::ReceiveQueryCompletionMessage( |
| main_thread_client_id, &bus); |
| end = std::chrono::steady_clock::now(); |
| |
| const CatalogRelation *query_result_relation = query_handle->getQueryResultRelation(); |
| if (query_result_relation) { |
| PrintToScreen::PrintRelation(*query_result_relation, |
| query_processor->getStorageManager(), |
| stdout); |
| PrintToScreen::PrintOutputSize( |
| *query_result_relation, |
| query_processor->getStorageManager(), |
| stdout); |
| |
| DropRelation::Drop(*query_result_relation, |
| query_processor->getDefaultDatabase(), |
| query_processor->getStorageManager()); |
| } |
| |
| query_processor->saveCatalog(); |
| std::chrono::duration<double, std::milli> time_ms = end - start; |
| printf("Time: %s ms\n", |
| quickstep::DoubleToStringWithSignificantDigits( |
| time_ms.count(), 3).c_str()); |
| if (quickstep::FLAGS_profile_and_report_workorder_perf) { |
| // TODO(harshad) - Allow user specified file instead of stdout. |
| foreman.printWorkOrderProfilingResults(query_handle->query_id(), |
| stdout); |
| } |
| if (quickstep::FLAGS_visualize_execution_dag) { |
| const auto &profiling_stats = |
| foreman.getWorkOrderProfilingResults(query_handle->query_id()); |
| dag_visualizer->bindProfilingStats(profiling_stats); |
| std::cerr << "\n" << dag_visualizer->toDOT() << "\n"; |
| } |
| if (!quickstep::FLAGS_profile_output.empty()) { |
| std::ofstream ofs(quickstep::FLAGS_profile_output, std::ios::out); |
| quickstep::simple_profiler.writeToStream(ofs); |
| ofs.close(); |
| } |
| } catch (const std::exception &e) { |
| fprintf(stderr, "QUERY EXECUTION ERROR: %s\n", e.what()); |
| break; |
| } |
| } else { |
| if (result.condition == ParseResult::kError) { |
| fprintf(stderr, "%s", result.error_message.c_str()); |
| } |
| reset_parser = true; |
| break; |
| } |
| #ifdef QUICKSTEP_ENABLE_GOOGLE_PROFILER |
| // Profile only if profile_file_name flag is set |
| if (!started_profiling && !quickstep::FLAGS_profile_file_name.empty()) { |
| started_profiling = true; |
| ProfilerStart(quickstep::FLAGS_profile_file_name.c_str()); |
| } |
| #endif |
| } |
| |
| if (quitting) { |
| break; |
| } else if (reset_parser) { |
| parser_wrapper.reset(new SqlParserWrapper()); |
| reset_parser = false; |
| } |
| } |
| |
| #ifdef QUICKSTEP_ENABLE_GOOGLE_PROFILER |
| if (started_profiling) { |
| ProfilerStop(); |
| ProfilerFlush(); |
| } |
| #endif |
| |
| // Kill the foreman and workers. |
| QueryExecutionUtil::BroadcastPoisonMessage(main_thread_client_id, &bus); |
| |
| for (Worker &worker : workers) { |
| worker.join(); |
| } |
| |
| foreman.join(); |
| return 0; |
| } |
