16d8cdadc9
Tenants get their own connections for statement verbs and are further isolated from each other by different scheduling groups. A tenant is identified by a scheduling group and a name. When selecting the client index for a statement verb, we look up the tenant whose scheduling group matches the current one. This scheduling group is persisted across the RPC call, using the name to identify the tenant on the remote end, where a reverse lookup (name -> scheduling group) happens. Instead of a single scheduling group to be used for all statement verbs, messaging_service::scheduling_config now contains a list of tenants. The first among these is the default tenant, the one we use when the current scheduling group doesn't match that of any configured tenant. To make this mapping easier, we reshuffle the client index assignment, such that statement and statement-ack verbs have the idx 2 and 3 respectively, instead of 0 and 3. The tenant configuration is configured at message service construction time and cannot be changed after. Adding such capability should be easy but is not needed for query classification, the current user of the tenant concept. Currently two tenants are configured: $user (default tenant) and $system.
187 lines
7.3 KiB
C++
187 lines
7.3 KiB
C++
/*
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* Copyright (C) 2015 ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "init.hh"
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#include "message/messaging_service.hh"
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#include "gms/failure_detector.hh"
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#include "gms/gossiper.hh"
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#include "service/storage_service.hh"
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#include "to_string.hh"
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#include "gms/inet_address.hh"
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#include "gms/feature_service.hh"
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#include "seastarx.hh"
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#include "db/config.hh"
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logging::logger startlog("init");
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void init_ms_fd_gossiper(sharded<gms::gossiper>& gossiper
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, sharded<gms::feature_service>& features
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, db::config& cfg
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, sstring listen_address_in
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, uint16_t storage_port
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, uint16_t ssl_storage_port
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, bool tcp_nodelay_inter_dc
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, sstring ms_encrypt_what
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, sstring ms_trust_store
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, sstring ms_cert
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, sstring ms_key
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, sstring ms_tls_prio
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, bool ms_client_auth
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, sstring ms_compress
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, db::seed_provider_type seed_provider
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, size_t available_memory
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, init_scheduling_config scheduling_config
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, sstring cluster_name
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, double phi
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, bool sltba)
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{
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auto preferred = cfg.listen_interface_prefer_ipv6() ? std::make_optional(net::inet_address::family::INET6) : std::nullopt;
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auto family = cfg.enable_ipv6_dns_lookup() || preferred ? std::nullopt : std::make_optional(net::inet_address::family::INET);
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const auto listen = gms::inet_address::lookup(listen_address_in, family).get0();
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using encrypt_what = netw::messaging_service::encrypt_what;
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using compress_what = netw::messaging_service::compress_what;
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using tcp_nodelay_what = netw::messaging_service::tcp_nodelay_what;
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using namespace seastar::tls;
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encrypt_what ew = encrypt_what::none;
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if (ms_encrypt_what == "all") {
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ew = encrypt_what::all;
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} else if (ms_encrypt_what == "dc") {
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ew = encrypt_what::dc;
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} else if (ms_encrypt_what == "rack") {
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ew = encrypt_what::rack;
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}
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compress_what cw = compress_what::none;
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if (ms_compress == "all") {
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cw = compress_what::all;
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} else if (ms_compress == "dc") {
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cw = compress_what::dc;
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}
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tcp_nodelay_what tndw = tcp_nodelay_what::all;
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if (!tcp_nodelay_inter_dc) {
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tndw = tcp_nodelay_what::local;
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}
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future<> f = make_ready_future<>();
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std::shared_ptr<credentials_builder> creds;
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if (ew != encrypt_what::none) {
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creds = std::make_shared<credentials_builder>();
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creds->set_dh_level(dh_params::level::MEDIUM);
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creds->set_x509_key_file(ms_cert, ms_key, x509_crt_format::PEM).get();
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if (ms_trust_store.empty()) {
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creds->set_system_trust().get();
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} else {
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creds->set_x509_trust_file(ms_trust_store, x509_crt_format::PEM).get();
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}
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creds->set_priority_string(db::config::default_tls_priority);
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if (!ms_tls_prio.empty()) {
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creds->set_priority_string(ms_tls_prio);
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}
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if (ms_client_auth) {
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creds->set_client_auth(seastar::tls::client_auth::REQUIRE);
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}
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}
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// Init messaging_service
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// Delay listening messaging_service until gossip message handlers are registered
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netw::messaging_service::memory_config mcfg = { std::max<size_t>(0.08 * available_memory, 1'000'000) };
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netw::messaging_service::scheduling_config scfg;
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scfg.statement_tenants = { {scheduling_config.statement, "$user"}, {default_scheduling_group(), "$system"} };
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scfg.streaming = scheduling_config.streaming;
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scfg.gossip = scheduling_config.gossip;
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netw::get_messaging_service().start(listen, storage_port, ew, cw, tndw, ssl_storage_port, creds, mcfg, scfg, sltba).get();
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// #293 - do not stop anything
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//engine().at_exit([] { return netw::get_messaging_service().stop(); });
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// Init gossiper
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std::set<gms::inet_address> seeds;
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if (seed_provider.parameters.count("seeds") > 0) {
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size_t begin = 0;
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size_t next = 0;
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sstring seeds_str = seed_provider.parameters.find("seeds")->second;
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while (begin < seeds_str.length() && begin != (next=seeds_str.find(",",begin))) {
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auto seed = boost::trim_copy(seeds_str.substr(begin,next-begin));
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try {
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seeds.emplace(gms::inet_address::lookup(seed, family, preferred).get0());
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} catch (...) {
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startlog.error("Bad configuration: invalid value in 'seeds': '{}': {}", seed, std::current_exception());
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throw bad_configuration_error();
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}
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begin = next+1;
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}
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}
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if (seeds.empty()) {
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seeds.emplace(gms::inet_address("127.0.0.1"));
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}
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auto broadcast_address = utils::fb_utilities::get_broadcast_address();
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if (broadcast_address != listen && seeds.count(listen)) {
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fmt::print("Use broadcast_address instead of listen_address for seeds list: seeds={}, listen_address={}, broadcast_address={}\n",
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to_string(seeds), listen_address_in, broadcast_address);
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throw std::runtime_error("Use broadcast_address for seeds list");
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}
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if ((!cfg.replace_address_first_boot().empty() || !cfg.replace_address().empty()) && seeds.count(broadcast_address)) {
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startlog.error("Bad configuration: replace-address and replace-address-first-boot are not allowed for seed nodes");
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throw bad_configuration_error();
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}
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gossiper.local().set_seeds(seeds);
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// Do it in the background.
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(void)gossiper.invoke_on_all([cluster_name](gms::gossiper& g) {
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g.set_cluster_name(cluster_name);
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}).handle_exception([] (std::exception_ptr e) {
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startlog.error("Unexpected exception while setting cluster name: {}", e);
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});
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}
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std::vector<std::reference_wrapper<configurable>>& configurable::configurables() {
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static std::vector<std::reference_wrapper<configurable>> configurables;
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return configurables;
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}
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void configurable::register_configurable(configurable & c) {
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configurables().emplace_back(std::ref(c));
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}
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void configurable::append_all(db::config& cfg, boost::program_options::options_description_easy_init& init) {
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for (configurable& c : configurables()) {
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c.append_options(cfg, init);
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}
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}
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future<> configurable::init_all(const boost::program_options::variables_map& opts, const db::config& cfg, db::extensions& exts) {
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return do_for_each(configurables(), [&](configurable& c) {
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return c.initialize(opts, cfg, exts);
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});
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}
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future<> configurable::init_all(const db::config& cfg, db::extensions& exts) {
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return do_with(boost::program_options::variables_map{}, [&](auto& opts) {
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return init_all(opts, cfg, exts);
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});
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}
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