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https://github.com/scylladb/scylladb.git
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f1b9737e07
In order to make sure that the scheduling group carries over RPC, and also to prevent priority inversion issues between different service levels, modify the messaging service to use separate RPC connections for each service level in order to serve user traffic. The above is achieved by reusing the existing concept of "tenants" in messaging service: when a new service level (or, more accurately, service-level specific scheduling group) is first used in an RPC, a new tenant is created. In addition, extend the service level controller to be able to quickly look up the service level name of the currently active scheduling group in order to speed up the logic for choosing the tenant.
249 lines
11 KiB
C++
249 lines
11 KiB
C++
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/*
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* Copyright (C) 2015-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.0
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*/
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#include <chrono>
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#include <optional>
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#include <seastar/core/reactor.hh>
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#include <seastar/core/app-template.hh>
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#include <seastar/core/sstring.hh>
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#include <seastar/core/thread.hh>
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#include <seastar/rpc/rpc_types.hh>
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#include <seastar/util/closeable.hh>
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#include "gms/feature_service.hh"
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#include "message/messaging_service.hh"
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#include "gms/gossip_digest_syn.hh"
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#include "gms/gossip_digest_ack.hh"
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#include "gms/gossip_digest_ack2.hh"
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#include "gms/gossip_digest.hh"
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#include "api/api.hh"
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#include "utils/UUID.hh"
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#include "utils/log.hh"
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#include "locator/token_metadata.hh"
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#include "db/schema_tables.hh"
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#include "idl/gossip.dist.hh"
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#include "service/qos/service_level_controller.hh"
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using namespace std::chrono_literals;
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using namespace netw;
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logging::logger test_logger("message_test");
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class tester {
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private:
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messaging_service& ms;
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gms::inet_address _server;
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uint32_t _cpuid;
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public:
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tester(netw::messaging_service& ms_) : ms(ms_) {}
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using msg_addr = netw::messaging_service::msg_addr;
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using inet_address = gms::inet_address;
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using endpoint_state = gms::endpoint_state;
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msg_addr get_msg_addr() {
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return msg_addr{_server, _cpuid};
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}
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void set_server_ip(sstring ip) {
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_server = inet_address(ip);
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}
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void set_server_cpuid(uint32_t cpu) {
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_cpuid = cpu;
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}
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future<> stop() {
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return make_ready_future<>();
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}
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promise<> digest_test_done;
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uint16_t port() const { return ms.port(); }
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public:
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void init_handler() {
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ser::gossip_rpc_verbs::register_gossip_digest_syn(&ms, [this] (const rpc::client_info& cinfo, gms::gossip_digest_syn msg) {
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test_logger.info("Server got syn msg = {}", msg);
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auto from = netw::messaging_service::get_source(cinfo);
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auto ep1 = inet_address("1.1.1.1");
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auto ep2 = inet_address("2.2.2.2");
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gms::generation_type gen(800);
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gms::version_type ver(900);
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utils::chunked_vector<gms::gossip_digest> digests;
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digests.push_back(gms::gossip_digest(ep1, gen++, ver++));
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digests.push_back(gms::gossip_digest(ep2, gen++, ver++));
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std::map<inet_address, endpoint_state> eps{
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{ep1, endpoint_state()},
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{ep2, endpoint_state()},
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};
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gms::gossip_digest_ack ack(std::move(digests), std::move(eps));
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// FIXME: discarded future.
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(void)ser::gossip_rpc_verbs::send_gossip_digest_ack(&ms, from, std::move(ack)).handle_exception([] (auto ep) {
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test_logger.error("Fail to send ack : {}", ep);
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});
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return make_ready_future<rpc::no_wait_type>(netw::messaging_service::no_wait());
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});
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ser::gossip_rpc_verbs::register_gossip_digest_ack(&ms, [this] (const rpc::client_info& cinfo, gms::gossip_digest_ack msg) {
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test_logger.info("Server got ack msg = {}", msg);
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auto from = netw::messaging_service::get_source(cinfo);
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// Prepare gossip_digest_ack2 message
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auto ep1 = inet_address("3.3.3.3");
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std::map<inet_address, endpoint_state> eps{
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{ep1, endpoint_state()},
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};
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gms::gossip_digest_ack2 ack2(std::move(eps));
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// FIXME: discarded future.
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(void)ser::gossip_rpc_verbs::send_gossip_digest_ack2(&ms, from, std::move(ack2)).handle_exception([] (auto ep) {
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test_logger.error("Fail to send ack2 : {}", ep);
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});
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digest_test_done.set_value();
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return make_ready_future<rpc::no_wait_type>(netw::messaging_service::no_wait());
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});
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ser::gossip_rpc_verbs::register_gossip_digest_ack2(&ms, [] (const rpc::client_info& cinfo, gms::gossip_digest_ack2 msg) {
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test_logger.info("Server got ack2 msg = {}", msg);
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return make_ready_future<rpc::no_wait_type>(netw::messaging_service::no_wait());
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});
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ser::gossip_rpc_verbs::register_gossip_shutdown(&ms, [] (inet_address from, rpc::optional<int64_t> generation_number_opt) {
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test_logger.info("Server got shutdown msg = {}", from);
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return make_ready_future<rpc::no_wait_type>(netw::messaging_service::no_wait());
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});
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ser::gossip_rpc_verbs::register_gossip_echo(&ms, [] (const rpc::client_info& cinfo, rpc::opt_time_point, rpc::optional<int64_t> gen_opt, rpc::optional<bool> notify_up) {
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test_logger.info("Server got gossip echo msg");
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throw std::runtime_error("I'm throwing runtime_error exception");
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return make_ready_future<>();
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});
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}
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future<> deinit_handler() {
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co_await ser::gossip_rpc_verbs::unregister(&ms);
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test_logger.info("tester deinit_hadler done");
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}
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public:
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future<> test_gossip_digest() {
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test_logger.info("=== {} ===", __func__);
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// Prepare gossip_digest_syn message
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auto id = get_msg_addr();
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auto ep1 = inet_address("1.1.1.1");
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auto ep2 = inet_address("2.2.2.2");
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gms::generation_type gen(100);
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gms::version_type ver(900);
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utils::chunked_vector<gms::gossip_digest> digests;
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digests.push_back(gms::gossip_digest(ep1, gen++, ver++));
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digests.push_back(gms::gossip_digest(ep2, gen++, ver++));
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gms::gossip_digest_syn syn("my_cluster", "my_partition", digests, utils::null_uuid());
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return ser::gossip_rpc_verbs::send_gossip_digest_syn(&ms, id, std::move(syn)).then([this] {
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test_logger.info("Sent gossip sigest syn. Waiting for digest_test_done...");
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return digest_test_done.get_future();
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});
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}
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future<> test_gossip_shutdown() {
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test_logger.info("=== {} ===", __func__);
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auto id = get_msg_addr();
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inet_address from("127.0.0.1");
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int64_t gen = 0x1;
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return ser::gossip_rpc_verbs::send_gossip_shutdown(&ms, id, from, gen).then([] () {
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test_logger.info("Client sent gossip_shutdown got reply = void");
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return make_ready_future<>();
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});
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}
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future<> test_echo() {
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test_logger.info("=== {} ===", __func__);
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auto id = get_msg_addr();
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int64_t gen = 0x1;
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return ser::gossip_rpc_verbs::send_gossip_echo(&ms, id, netw::messaging_service::clock_type::now() + std::chrono::seconds(10), gen, false).then_wrapped([] (auto&& f) {
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try {
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f.get();
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return make_ready_future<>();
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} catch (std::runtime_error& e) {
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test_logger.error("test_echo: {}", e.what());
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}
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return make_ready_future<>();
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});
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}
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};
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namespace bpo = boost::program_options;
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// Usage example: build/dev/test/manual/message --listen 127.0.0.1 --server 127.0.0.1
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int main(int ac, char ** av) {
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app_template app;
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app.add_options()
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("server", bpo::value<std::string>(), "Server ip")
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("listen-address", bpo::value<std::string>()->default_value("0.0.0.0"), "IP address to listen")
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("api-port", bpo::value<uint16_t>()->default_value(10000), "Http Rest API port")
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("stay-alive", bpo::value<bool>()->default_value(false), "Do not kill the test server after the test")
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("cpuid", bpo::value<uint32_t>()->default_value(0), "Server cpuid");
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distributed<replica::database> db;
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sharded<auth::service> auth_service;
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locator::shared_token_metadata tm({}, {});
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distributed<qos::service_level_controller> sl_controller;
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return app.run_deprecated(ac, av, [&app, &auth_service, &tm, &sl_controller] {
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return seastar::async([&app, &auth_service, &tm, &sl_controller] {
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auto config = app.configuration();
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bool stay_alive = config["stay-alive"].as<bool>();
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const gms::inet_address listen = gms::inet_address(config["listen-address"].as<std::string>());
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auto my_address = listen != gms::inet_address("0.0.0.0") ? listen : gms::inet_address("localhost");
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locator::token_metadata::config tm_cfg;
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tm_cfg.topo_cfg.this_endpoint = my_address;
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sharded<locator::shared_token_metadata> token_metadata;
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token_metadata.start([] () noexcept { return db::schema_tables::hold_merge_lock(); }, tm_cfg).get();
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auto stop_tm = deferred_stop(token_metadata);
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auto default_scheduling_group = create_scheduling_group("sl_default_sg", 1.0).get();
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sharded<abort_source> as;
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as.start().get();
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auto stop_as = defer([&as] { as.stop().get(); });
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sl_controller.start(std::ref(auth_service), std::ref(tm), std::ref(as), qos::service_level_options{.shares = 1000}, default_scheduling_group).get();
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seastar::sharded<utils::walltime_compressor_tracker> compressor_tracker;
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compressor_tracker.start([] { return utils::walltime_compressor_tracker::config{}; }).get();
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auto stop_compressor_tracker = deferred_stop(compressor_tracker);
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seastar::sharded<gms::feature_service> feature_service;
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auto cfg = gms::feature_config_from_db_config(db::config(), {});
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feature_service.start(cfg).get();
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seastar::sharded<gms::gossip_address_map> gossip_address_map;
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gossip_address_map.start().get();
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seastar::sharded<netw::messaging_service> messaging;
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messaging.start(locator::host_id{}, listen, 7000, std::ref(feature_service),
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std::ref(gossip_address_map), std::ref(compressor_tracker),
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std::ref(sl_controller)).get();
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auto stop_messaging = deferred_stop(messaging);
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seastar::sharded<tester> testers;
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testers.start(std::ref(messaging)).get();
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auto stop_testers = deferred_stop(testers);
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auto port = testers.local().port();
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test_logger.info("Messaging server listening on {} port {}", listen, port);
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testers.invoke_on_all(&tester::init_handler).get();
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auto deinit_testers = deferred_action([&testers] {
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testers.invoke_on_all(&tester::deinit_handler).get();
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});
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messaging.invoke_on_all(&netw::messaging_service::start_listen, std::ref(token_metadata)).get();
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if (config.contains("server")) {
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auto ip = config["server"].as<std::string>();
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auto cpuid = config["cpuid"].as<uint32_t>();
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auto t = &testers.local();
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t->set_server_ip(ip);
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t->set_server_cpuid(cpuid);
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test_logger.info("=============TEST START===========");
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test_logger.info("Sending to server ....");
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t->test_gossip_digest().get();
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t->test_gossip_shutdown().get();
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t->test_echo().get();
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test_logger.info("=============TEST DONE===========");
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}
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while (stay_alive) {
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seastar::sleep(1s).get();
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}
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}).finally([] {
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exit(0);
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});
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});
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}
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