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scylladb/tests/gossip.cc
Pekka Enberg 38a54df863 Fix pre-ScyllaDB copyright statements
People keep tripping over the old copyrights and copy-pasting them to
new files. Search and replace "Cloudius Systems" with "ScyllaDB".

Message-Id: <1460013664-25966-1-git-send-email-penberg@scylladb.com>
2016-04-08 08:12:47 +03:00

119 lines
4.7 KiB
C++

/*
* Copyright (C) 2015 ScyllaDB
*/
/*
* This file is part of Scylla.
*
* Scylla is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Scylla 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 Scylla. If not, see <http://www.gnu.org/licenses/>.
*/
#include "core/reactor.hh"
#include "core/app-template.hh"
#include "message/messaging_service.hh"
#include "gms/failure_detector.hh"
#include "gms/gossiper.hh"
#include "gms/application_state.hh"
#include "service/storage_service.hh"
#include "utils/fb_utilities.hh"
#include "locator/snitch_base.hh"
#include "log.hh"
#include <seastar/core/thread.hh>
#include <chrono>
#include "disk-error-handler.hh"
thread_local disk_error_signal_type commit_error;
thread_local disk_error_signal_type general_disk_error;
namespace bpo = boost::program_options;
// === How to run the test
// node1:
// ./gossip --seed 127.0.0.1 --listen-address 127.0.0.1 -c 2
//
// node2:
// ./gossip --seed 127.0.0.1 --listen-address 127.0.0.2 -c 2
//
// node3:
// ./gossip --seed 127.0.0.1 --listen-address 127.0.0.3 -c 2
//
// === What to expect
//
// Each node should see the LOAD status of other nodes. The load status is increased by 0.0001 every second.
// And the version number in the HeartBeatState increases every second.
// Example of the output:
//
// DEBUG [shard 0] gossip - ep=127.0.0.1, eps=HeartBeatState = { generation = 1446454365, version = 68 }, AppStateMap = { LOAD : Value(0.5019,67) }
// DEBUG [shard 0] gossip - ep=127.0.0.2, eps=HeartBeatState = { generation = 1446454380, version = 27 }, AppStateMap = { LOAD : Value(0.5005,26) }
int main(int ac, char ** av) {
distributed<database> db;
app_template app;
app.add_options()
("seed", bpo::value<std::vector<std::string>>(), "IP address of seed node")
("listen-address", bpo::value<std::string>()->default_value("0.0.0.0"), "IP address to listen");
return app.run_deprecated(ac, av, [&db, &app] {
auto config = app.configuration();
logging::logger_registry().set_logger_level("gossip", logging::log_level::trace);
const gms::inet_address listen = gms::inet_address(config["listen-address"].as<std::string>());
utils::fb_utilities::set_broadcast_address(listen);
utils::fb_utilities::set_broadcast_rpc_address(listen);
auto vv = std::make_shared<gms::versioned_value::factory>();
locator::i_endpoint_snitch::create_snitch("SimpleSnitch").then([&db] {
return service::init_storage_service(db);
}).then([vv, listen, config] {
return net::get_messaging_service().start(listen);
}).then([config] {
auto& server = net::get_local_messaging_service();
auto port = server.port();
auto listen = server.listen_address();
print("Messaging server listening on ip %s port %d ...\n", listen, port);
return gms::get_failure_detector().start();
}).then([vv, config] {
return gms::get_gossiper().start();
}).then([vv, config] {
std::set<gms::inet_address> seeds;
for (auto s : config["seed"].as<std::vector<std::string>>()) {
seeds.emplace(std::move(s));
}
std::cout << "Start gossiper service ...\n";
auto& gossiper = gms::get_local_gossiper();
gossiper.set_seeds(std::move(seeds));
gossiper.set_cluster_name("Test Cluster");
std::map<gms::application_state, gms::versioned_value> app_states = {
{ gms::application_state::LOAD, vv->load(0.5) },
};
using namespace std::chrono;
auto now = high_resolution_clock::now().time_since_epoch();
int generation_number = duration_cast<seconds>(now).count();
return gossiper.start_gossiping(generation_number, app_states);
}).then([vv] {
return seastar::async([vv] {
static double load = 0.5;
for (;;) {
auto value = vv->load(load);
load += 0.0001;
gms::get_local_gossiper().add_local_application_state(gms::application_state::LOAD, value).get();
sleep(std::chrono::seconds(1)).get();
}
});
});
});
}