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-rw-r--r--wsrep-lib/dbsim/db_simulator.cpp267
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diff --git a/wsrep-lib/dbsim/db_simulator.cpp b/wsrep-lib/dbsim/db_simulator.cpp
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+/*
+ * Copyright (C) 2018 Codership Oy <info@codership.com>
+ *
+ * This file is part of wsrep-lib.
+ *
+ * Wsrep-lib is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Wsrep-lib is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with wsrep-lib. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "db_simulator.hpp"
+#include "db_client.hpp"
+#include "db_threads.hpp"
+#include "db_tls.hpp"
+
+#include "wsrep/logger.hpp"
+
+#include <boost/filesystem.hpp>
+#include <sstream>
+
+static db::ti thread_instrumentation;
+static db::tls tls_service;
+
+void db::simulator::run()
+{
+ start();
+ stop();
+ std::flush(std::cerr);
+ std::cout << "Results:\n";
+ std::cout << stats() << std::endl;
+ std::cout << db::ti::stats() << std::endl;
+ std::cout << db::tls::stats() << std::endl;
+}
+
+void db::simulator::sst(db::server& server,
+ const std::string& request,
+ const wsrep::gtid& gtid,
+ bool bypass)
+{
+ // The request may contain extra trailing '\0' after it goes
+ // through the provider, strip it first.
+ std::string name(request);
+ name.erase(std::find(name.begin(), name.end(), '\0'), name.end());
+
+ wsrep::unique_lock<wsrep::mutex> lock(mutex_);
+ auto i(servers_.find(name));
+ wsrep::log_info() << "SST request '" << name << "'";
+ if (i == servers_.end())
+ {
+ wsrep::log_error() << "Server " << request << " not found";
+ wsrep::log_info() << "servers:";
+ for (const auto& s : servers_)
+ {
+ wsrep::log_info() << "server: " << s.first;
+ }
+ throw wsrep::runtime_error("Server " + request + " not found");
+ }
+ if (bypass == false)
+ {
+ wsrep::log_info() << "SST "
+ << server.server_state().name()
+ << " -> " << request;
+ i->second->storage_engine().store_position(gtid);
+ i->second->storage_engine().store_view(
+ server.storage_engine().get_view());
+ }
+
+ db::client dummy(*(i->second), wsrep::client_id(-1),
+ wsrep::client_state::m_local, params());
+
+ if (i->second->server_state().sst_received(dummy.client_service(), 0))
+ {
+ throw wsrep::runtime_error("Call to SST received failed");
+ }
+ server.server_state().sst_sent(gtid, 0);
+}
+
+std::string db::simulator::stats() const
+{
+ auto duration(std::chrono::duration<double>(
+ clients_stop_ - clients_start_).count());
+ long long transactions(stats_.commits + stats_.rollbacks);
+ long long bf_aborts(0);
+ for (const auto& s : servers_)
+ {
+ bf_aborts += s.second->storage_engine().bf_aborts();
+ }
+ std::ostringstream os;
+ os << "Number of transactions: " << transactions
+ << "\n"
+ << "Seconds: " << duration
+ << " \n"
+ << "Transactions per second: " << double(transactions)/double(duration)
+ << "\n"
+ << "BF aborts: "
+ << bf_aborts
+ << "\n"
+ << "Client commits: " << stats_.commits
+ << "\n"
+ << "Client rollbacks: " << stats_.rollbacks
+ << "\n"
+ << "Client replays: " << stats_.replays;
+ return os.str();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Private //
+////////////////////////////////////////////////////////////////////////////////
+
+void db::simulator::start()
+{
+ thread_instrumentation.level(params_.thread_instrumentation);
+ thread_instrumentation.cond_checks(params_.cond_checks);
+ tls_service.init(params_.tls_service);
+ wsrep::log_info() << "Provider: " << params_.wsrep_provider;
+
+ std::string cluster_address(build_cluster_address());
+ wsrep::log_info() << "Cluster address: " << cluster_address;
+ for (size_t i(0); i < params_.n_servers; ++i)
+ {
+ std::ostringstream name_os;
+ name_os << (i + 1);
+ std::ostringstream id_os;
+ id_os << (i + 1);
+ std::ostringstream address_os;
+ address_os << "127.0.0.1:" << server_port(i);
+ wsrep::id server_id(id_os.str());
+ auto it(servers_.insert(
+ std::make_pair(
+ name_os.str(),
+ std::make_unique<db::server>(
+ *this,
+ name_os.str(),
+ address_os.str()))));
+ if (it.second == false)
+ {
+ throw wsrep::runtime_error("Failed to add server");
+ }
+ boost::filesystem::path dir("dbsim_" + id_os.str() + "_data");
+ boost::filesystem::create_directory(dir);
+
+ db::server& server(*it.first->second);
+ server.server_state().debug_log_level(params_.debug_log_level);
+ std::string server_options(params_.wsrep_provider_options);
+
+ wsrep::provider::services services;
+ services.thread_service = params_.thread_instrumentation
+ ? &thread_instrumentation
+ : nullptr;
+ services.tls_service = params_.tls_service
+ ? &tls_service
+ : nullptr;
+ if (server.server_state().load_provider(params_.wsrep_provider,
+ server_options, services))
+ {
+ throw wsrep::runtime_error("Failed to load provider");
+ }
+ if (server.server_state().connect("sim_cluster", cluster_address, "",
+ i == 0))
+ {
+ throw wsrep::runtime_error("Failed to connect");
+ }
+ wsrep::log_debug() << "main: Starting applier";
+ server.start_applier();
+ wsrep::log_debug() << "main: Waiting initializing state";
+ if (server.server_state().wait_until_state(
+ wsrep::server_state::s_initializing))
+ {
+ throw wsrep::runtime_error("Failed to reach initializing state");
+ }
+ wsrep::log_debug() << "main: Calling initialized";
+ server.server_state().initialized();
+ wsrep::log_debug() << "main: Waiting for synced state";
+ if (server.server_state().wait_until_state(
+ wsrep::server_state::s_synced))
+ {
+ throw wsrep::runtime_error("Failed to reach synced state");
+ }
+ wsrep::log_debug() << "main: Server synced";
+ }
+
+ // Start client threads
+ wsrep::log_info() << "####################### Starting client load";
+ clients_start_ = std::chrono::steady_clock::now();
+ size_t index(0);
+ for (auto& i : servers_)
+ {
+ if (params_.topology.size() == 0 || params_.topology[index] == 'm')
+ {
+ i.second->start_clients();
+ }
+ ++index;
+ }
+}
+
+void db::simulator::stop()
+{
+ for (auto& i : servers_)
+ {
+ db::server& server(*i.second);
+ server.stop_clients();
+ }
+ clients_stop_ = std::chrono::steady_clock::now();
+ wsrep::log_info() << "######## Stats ############";
+ wsrep::log_info() << stats();
+ std::cout << db::ti::stats() << std::endl;
+ wsrep::log_info() << "######## Stats ############";
+ if (params_.fast_exit)
+ {
+ exit(0);
+ }
+ for (auto& i : servers_)
+ {
+ db::server& server(*i.second);
+ wsrep::log_info() << "Status for server: "
+ << server.server_state().id();
+ auto status(server.server_state().provider().status());
+ for_each(status.begin(), status.end(),
+ [](const wsrep::provider::status_variable& sv)
+ {
+ wsrep::log_info() << sv.name() << " = " << sv.value();
+ });
+ server.server_state().disconnect();
+ if (server.server_state().wait_until_state(
+ wsrep::server_state::s_disconnected))
+ {
+ throw wsrep::runtime_error("Failed to reach disconnected state");
+ }
+ server.stop_applier();
+ server.server_state().unload_provider();
+ }
+}
+
+std::string db::simulator::server_port(size_t i) const
+{
+ std::ostringstream os;
+ os << (10000 + (i + 1)*10);
+ return os.str();
+}
+
+std::string db::simulator::build_cluster_address() const
+{
+ std::string ret;
+ if (params_.wsrep_provider.find("galera_smm") != std::string::npos)
+ {
+ ret += "gcomm://";
+ }
+
+ for (size_t i(0); i < params_.n_servers; ++i)
+ {
+ std::ostringstream sa_os;
+ sa_os << "127.0.0.1:";
+ sa_os << server_port(i);
+ ret += sa_os.str();
+ if (i < params_.n_servers - 1) ret += ",";
+ }
+ return ret;
+}
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