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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2014 UnitedStack <haomai@unitedstack.com>
+ *
+ * Author: Haomai Wang <haomaiwang@gmail.com>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+#include <atomic>
+#include <iostream>
+#include <list>
+#include <memory>
+#include <set>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <boost/random/binomial_distribution.hpp>
+#include <boost/random/mersenne_twister.hpp>
+#include <boost/random/uniform_int.hpp>
+#include <gtest/gtest.h>
+
+#define MSG_POLICY_UNIT_TESTING
+
+#include "common/ceph_argparse.h"
+#include "common/ceph_mutex.h"
+#include "global/global_init.h"
+#include "messages/MCommand.h"
+#include "messages/MPing.h"
+#include "msg/Connection.h"
+#include "msg/Dispatcher.h"
+#include "msg/Message.h"
+#include "msg/Messenger.h"
+#include "msg/msg_types.h"
+
+typedef boost::mt11213b gen_type;
+
+#include "common/dout.h"
+#include "include/ceph_assert.h"
+
+#include "auth/DummyAuth.h"
+
+#define dout_subsys ceph_subsys_ms
+#undef dout_prefix
+#define dout_prefix *_dout << " ceph_test_msgr "
+
+
+#define CHECK_AND_WAIT_TRUE(expr) do { \
+ int n = 1000; \
+ while (--n) { \
+ if (expr) \
+ break; \
+ usleep(1000); \
+ } \
+} while(0);
+
+using namespace std;
+
+class MessengerTest : public ::testing::TestWithParam<const char*> {
+ public:
+ DummyAuthClientServer dummy_auth;
+ Messenger *server_msgr;
+ Messenger *client_msgr;
+
+ MessengerTest() : dummy_auth(g_ceph_context),
+ server_msgr(NULL), client_msgr(NULL) {
+ dummy_auth.auth_registry.refresh_config();
+ }
+ void SetUp() override {
+ lderr(g_ceph_context) << __func__ << " start set up " << GetParam() << dendl;
+ server_msgr = Messenger::create(g_ceph_context, string(GetParam()), entity_name_t::OSD(0), "server", getpid());
+ client_msgr = Messenger::create(g_ceph_context, string(GetParam()), entity_name_t::CLIENT(-1), "client", getpid());
+ server_msgr->set_default_policy(Messenger::Policy::stateless_server(0));
+ client_msgr->set_default_policy(Messenger::Policy::lossy_client(0));
+ server_msgr->set_auth_client(&dummy_auth);
+ server_msgr->set_auth_server(&dummy_auth);
+ client_msgr->set_auth_client(&dummy_auth);
+ client_msgr->set_auth_server(&dummy_auth);
+ server_msgr->set_require_authorizer(false);
+ }
+ void TearDown() override {
+ ASSERT_EQ(server_msgr->get_dispatch_queue_len(), 0);
+ ASSERT_EQ(client_msgr->get_dispatch_queue_len(), 0);
+ delete server_msgr;
+ delete client_msgr;
+ }
+
+};
+
+
+class FakeDispatcher : public Dispatcher {
+ public:
+ struct Session : public RefCountedObject {
+ atomic<uint64_t> count;
+ ConnectionRef con;
+
+ explicit Session(ConnectionRef c): RefCountedObject(g_ceph_context), count(0), con(c) {
+ }
+ uint64_t get_count() { return count; }
+ };
+
+ ceph::mutex lock = ceph::make_mutex("FakeDispatcher::lock");
+ ceph::condition_variable cond;
+ bool is_server;
+ bool got_new;
+ bool got_remote_reset;
+ bool got_connect;
+ bool loopback;
+ entity_addrvec_t last_accept;
+ ConnectionRef *last_accept_con_ptr = nullptr;
+
+ explicit FakeDispatcher(bool s): Dispatcher(g_ceph_context),
+ is_server(s), got_new(false), got_remote_reset(false),
+ got_connect(false), loopback(false) {
+ }
+ bool ms_can_fast_dispatch_any() const override { return true; }
+ bool ms_can_fast_dispatch(const Message *m) const override {
+ switch (m->get_type()) {
+ case CEPH_MSG_PING:
+ return true;
+ default:
+ return false;
+ }
+ }
+
+ void ms_handle_fast_connect(Connection *con) override {
+ std::scoped_lock l{lock};
+ lderr(g_ceph_context) << __func__ << " " << con << dendl;
+ auto s = con->get_priv();
+ if (!s) {
+ auto session = new Session(con);
+ con->set_priv(RefCountedPtr{session, false});
+ lderr(g_ceph_context) << __func__ << " con: " << con
+ << " count: " << session->count << dendl;
+ }
+ got_connect = true;
+ cond.notify_all();
+ }
+ void ms_handle_fast_accept(Connection *con) override {
+ last_accept = con->get_peer_addrs();
+ if (last_accept_con_ptr) {
+ *last_accept_con_ptr = con;
+ }
+ if (!con->get_priv()) {
+ con->set_priv(RefCountedPtr{new Session(con), false});
+ }
+ }
+ bool ms_dispatch(Message *m) override {
+ auto priv = m->get_connection()->get_priv();
+ auto s = static_cast<Session*>(priv.get());
+ if (!s) {
+ s = new Session(m->get_connection());
+ priv.reset(s, false);
+ m->get_connection()->set_priv(priv);
+ }
+ s->count++;
+ lderr(g_ceph_context) << __func__ << " conn: " << m->get_connection() << " session " << s << " count: " << s->count << dendl;
+ if (is_server) {
+ reply_message(m);
+ }
+ std::lock_guard l{lock};
+ got_new = true;
+ cond.notify_all();
+ m->put();
+ return true;
+ }
+ bool ms_handle_reset(Connection *con) override {
+ std::lock_guard l{lock};
+ lderr(g_ceph_context) << __func__ << " " << con << dendl;
+ auto priv = con->get_priv();
+ if (auto s = static_cast<Session*>(priv.get()); s) {
+ s->con.reset(); // break con <-> session ref cycle
+ con->set_priv(nullptr); // break ref <-> session cycle, if any
+ }
+ return true;
+ }
+ void ms_handle_remote_reset(Connection *con) override {
+ std::lock_guard l{lock};
+ lderr(g_ceph_context) << __func__ << " " << con << dendl;
+ auto priv = con->get_priv();
+ if (auto s = static_cast<Session*>(priv.get()); s) {
+ s->con.reset(); // break con <-> session ref cycle
+ con->set_priv(nullptr); // break ref <-> session cycle, if any
+ }
+ got_remote_reset = true;
+ cond.notify_all();
+ }
+ bool ms_handle_refused(Connection *con) override {
+ return false;
+ }
+ void ms_fast_dispatch(Message *m) override {
+ auto priv = m->get_connection()->get_priv();
+ auto s = static_cast<Session*>(priv.get());
+ if (!s) {
+ s = new Session(m->get_connection());
+ priv.reset(s, false);
+ m->get_connection()->set_priv(priv);
+ }
+ s->count++;
+ lderr(g_ceph_context) << __func__ << " conn: " << m->get_connection() << " session " << s << " count: " << s->count << dendl;
+ if (is_server) {
+ if (loopback)
+ ceph_assert(m->get_source().is_osd());
+ else
+ reply_message(m);
+ } else if (loopback) {
+ ceph_assert(m->get_source().is_client());
+ }
+ m->put();
+ std::lock_guard l{lock};
+ got_new = true;
+ cond.notify_all();
+ }
+
+ int ms_handle_fast_authentication(Connection *con) override {
+ return 1;
+ }
+
+ void reply_message(Message *m) {
+ MPing *rm = new MPing();
+ m->get_connection()->send_message(rm);
+ }
+};
+
+typedef FakeDispatcher::Session Session;
+
+struct TestInterceptor : public Interceptor {
+
+ bool step_waiting = false;
+ bool waiting = true;
+ std::map<Connection *, uint32_t> current_step;
+ std::map<Connection *, std::list<uint32_t>> step_history;
+ std::map<uint32_t, std::optional<ACTION>> decisions;
+ std::set<uint32_t> breakpoints;
+
+ uint32_t count_step(Connection *conn, uint32_t step) {
+ uint32_t count = 0;
+ for (auto s : step_history[conn]) {
+ if (s == step) {
+ count++;
+ }
+ }
+ return count;
+ }
+
+ void breakpoint(uint32_t step) {
+ breakpoints.insert(step);
+ }
+
+ void remove_bp(uint32_t step) {
+ breakpoints.erase(step);
+ }
+
+ Connection *wait(uint32_t step, Connection *conn=nullptr) {
+ std::unique_lock<std::mutex> l(lock);
+ while(true) {
+ if (conn) {
+ auto it = current_step.find(conn);
+ if (it != current_step.end()) {
+ if (it->second == step) {
+ break;
+ }
+ }
+ } else {
+ for (auto it : current_step) {
+ if (it.second == step) {
+ conn = it.first;
+ break;
+ }
+ }
+ if (conn) {
+ break;
+ }
+ }
+ step_waiting = true;
+ cond_var.wait(l);
+ }
+ step_waiting = false;
+ return conn;
+ }
+
+ ACTION wait_for_decision(uint32_t step, std::unique_lock<std::mutex> &l) {
+ if (decisions[step]) {
+ return *(decisions[step]);
+ }
+ waiting = true;
+ cond_var.wait(l, [this] { return !waiting; });
+ return *(decisions[step]);
+ }
+
+ void proceed(uint32_t step, ACTION decision) {
+ std::unique_lock<std::mutex> l(lock);
+ decisions[step] = decision;
+ if (waiting) {
+ waiting = false;
+ cond_var.notify_one();
+ }
+ }
+
+ ACTION intercept(Connection *conn, uint32_t step) override {
+ lderr(g_ceph_context) << __func__ << " conn(" << conn
+ << ") intercept called on step=" << step << dendl;
+
+ {
+ std::unique_lock<std::mutex> l(lock);
+ step_history[conn].push_back(step);
+ current_step[conn] = step;
+ if (step_waiting) {
+ cond_var.notify_one();
+ }
+ }
+
+ std::unique_lock<std::mutex> l(lock);
+ ACTION decision = ACTION::CONTINUE;
+ if (breakpoints.find(step) != breakpoints.end()) {
+ lderr(g_ceph_context) << __func__ << " conn(" << conn
+ << ") pausing on step=" << step << dendl;
+ decision = wait_for_decision(step, l);
+ } else {
+ if (decisions[step]) {
+ decision = *(decisions[step]);
+ }
+ }
+ lderr(g_ceph_context) << __func__ << " conn(" << conn
+ << ") resuming step=" << step << " with decision="
+ << decision << dendl;
+ decisions[step].reset();
+ return decision;
+ }
+
+};
+
+/**
+ * Scenario: A connects to B, and B connects to A at the same time.
+ */
+TEST_P(MessengerTest, ConnectionRaceTest) {
+ FakeDispatcher cli_dispatcher(false), srv_dispatcher(false);
+
+ TestInterceptor *cli_interceptor = new TestInterceptor();
+ TestInterceptor *srv_interceptor = new TestInterceptor();
+
+ server_msgr->set_policy(entity_name_t::TYPE_CLIENT, Messenger::Policy::lossless_peer_reuse(0));
+ server_msgr->interceptor = srv_interceptor;
+
+ client_msgr->set_policy(entity_name_t::TYPE_OSD, Messenger::Policy::lossless_peer_reuse(0));
+ client_msgr->interceptor = cli_interceptor;
+
+ entity_addr_t bind_addr;
+ bind_addr.parse("v2:127.0.0.1:3300");
+ server_msgr->bind(bind_addr);
+ server_msgr->add_dispatcher_head(&srv_dispatcher);
+ server_msgr->start();
+
+ bind_addr.parse("v2:127.0.0.1:3301");
+ client_msgr->bind(bind_addr);
+ client_msgr->add_dispatcher_head(&cli_dispatcher);
+ client_msgr->start();
+
+ // pause before sending client_ident message
+ cli_interceptor->breakpoint(Interceptor::STEP::SEND_CLIENT_IDENTITY);
+ // pause before sending client_ident message
+ srv_interceptor->breakpoint(Interceptor::STEP::SEND_CLIENT_IDENTITY);
+
+ ConnectionRef c2s = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ MPing *m1 = new MPing();
+ ASSERT_EQ(c2s->send_message(m1), 0);
+
+ ConnectionRef s2c = server_msgr->connect_to(client_msgr->get_mytype(),
+ client_msgr->get_myaddrs());
+ MPing *m2 = new MPing();
+ ASSERT_EQ(s2c->send_message(m2), 0);
+
+ cli_interceptor->wait(Interceptor::STEP::SEND_CLIENT_IDENTITY, c2s.get());
+ srv_interceptor->wait(Interceptor::STEP::SEND_CLIENT_IDENTITY, s2c.get());
+
+ // at this point both connections (A->B, B->A) are paused just before sending
+ // the client_ident message.
+
+ cli_interceptor->remove_bp(Interceptor::STEP::SEND_CLIENT_IDENTITY);
+ srv_interceptor->remove_bp(Interceptor::STEP::SEND_CLIENT_IDENTITY);
+
+ cli_interceptor->proceed(Interceptor::STEP::SEND_CLIENT_IDENTITY, Interceptor::ACTION::CONTINUE);
+ srv_interceptor->proceed(Interceptor::STEP::SEND_CLIENT_IDENTITY, Interceptor::ACTION::CONTINUE);
+
+ {
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+
+ {
+ std::unique_lock l{srv_dispatcher.lock};
+ srv_dispatcher.cond.wait(l, [&] { return srv_dispatcher.got_new; });
+ srv_dispatcher.got_new = false;
+ }
+
+ ASSERT_TRUE(s2c->is_connected());
+ ASSERT_EQ(1u, static_cast<Session*>(s2c->get_priv().get())->get_count());
+ ASSERT_TRUE(s2c->peer_is_client());
+
+ ASSERT_TRUE(c2s->is_connected());
+ ASSERT_EQ(1u, static_cast<Session*>(c2s->get_priv().get())->get_count());
+ ASSERT_TRUE(c2s->peer_is_osd());
+
+ client_msgr->shutdown();
+ client_msgr->wait();
+ server_msgr->shutdown();
+ server_msgr->wait();
+
+ delete cli_interceptor;
+ delete srv_interceptor;
+}
+
+/**
+ * Scenario: A connects to B, and B connects to A at the same time.
+ * The first (A -> B) connection gets to message flow handshake, the
+ * second (B -> A) connection is stuck waiting for a banner from A.
+ * After A sends client_ident to B, the first connection wins and B
+ * calls reuse_connection() to replace the second connection's socket
+ * while the second connection is still in BANNER_CONNECTING.
+ */
+TEST_P(MessengerTest, ConnectionRaceReuseBannerTest) {
+ FakeDispatcher cli_dispatcher(false), srv_dispatcher(false);
+
+ auto cli_interceptor = std::make_unique<TestInterceptor>();
+ auto srv_interceptor = std::make_unique<TestInterceptor>();
+
+ server_msgr->set_policy(entity_name_t::TYPE_CLIENT,
+ Messenger::Policy::lossless_peer_reuse(0));
+ server_msgr->interceptor = srv_interceptor.get();
+
+ client_msgr->set_policy(entity_name_t::TYPE_OSD,
+ Messenger::Policy::lossless_peer_reuse(0));
+ client_msgr->interceptor = cli_interceptor.get();
+
+ entity_addr_t bind_addr;
+ bind_addr.parse("v2:127.0.0.1:3300");
+ server_msgr->bind(bind_addr);
+ server_msgr->add_dispatcher_head(&srv_dispatcher);
+ server_msgr->start();
+
+ bind_addr.parse("v2:127.0.0.1:3301");
+ client_msgr->bind(bind_addr);
+ client_msgr->add_dispatcher_head(&cli_dispatcher);
+ client_msgr->start();
+
+ // pause before sending client_ident message
+ srv_interceptor->breakpoint(Interceptor::STEP::SEND_CLIENT_IDENTITY);
+
+ ConnectionRef s2c = server_msgr->connect_to(client_msgr->get_mytype(),
+ client_msgr->get_myaddrs());
+ MPing *m1 = new MPing();
+ ASSERT_EQ(s2c->send_message(m1), 0);
+
+ srv_interceptor->wait(Interceptor::STEP::SEND_CLIENT_IDENTITY);
+ srv_interceptor->remove_bp(Interceptor::STEP::SEND_CLIENT_IDENTITY);
+
+ // pause before sending banner
+ cli_interceptor->breakpoint(Interceptor::STEP::BANNER_EXCHANGE_BANNER_CONNECTING);
+
+ ConnectionRef c2s = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ MPing *m2 = new MPing();
+ ASSERT_EQ(c2s->send_message(m2), 0);
+
+ cli_interceptor->wait(Interceptor::STEP::BANNER_EXCHANGE_BANNER_CONNECTING);
+ cli_interceptor->remove_bp(Interceptor::STEP::BANNER_EXCHANGE_BANNER_CONNECTING);
+
+ // second connection is in BANNER_CONNECTING, ensure it stays so
+ // and send client_ident
+ srv_interceptor->breakpoint(Interceptor::STEP::BANNER_EXCHANGE);
+ srv_interceptor->proceed(Interceptor::STEP::SEND_CLIENT_IDENTITY, Interceptor::ACTION::CONTINUE);
+
+ // handle client_ident -- triggers reuse_connection() with exproto
+ // in BANNER_CONNECTING
+ cli_interceptor->breakpoint(Interceptor::STEP::READY);
+ cli_interceptor->proceed(Interceptor::STEP::BANNER_EXCHANGE_BANNER_CONNECTING, Interceptor::ACTION::CONTINUE);
+
+ cli_interceptor->wait(Interceptor::STEP::READY);
+ cli_interceptor->remove_bp(Interceptor::STEP::READY);
+
+ // first connection is in READY
+ Connection *s2c_accepter = srv_interceptor->wait(Interceptor::STEP::BANNER_EXCHANGE);
+ srv_interceptor->remove_bp(Interceptor::STEP::BANNER_EXCHANGE);
+
+ srv_interceptor->proceed(Interceptor::STEP::BANNER_EXCHANGE, Interceptor::ACTION::CONTINUE);
+ cli_interceptor->proceed(Interceptor::STEP::READY, Interceptor::ACTION::CONTINUE);
+
+ {
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+
+ {
+ std::unique_lock l{srv_dispatcher.lock};
+ srv_dispatcher.cond.wait(l, [&] { return srv_dispatcher.got_new; });
+ srv_dispatcher.got_new = false;
+ }
+
+ EXPECT_TRUE(s2c->is_connected());
+ EXPECT_EQ(1u, static_cast<Session*>(s2c->get_priv().get())->get_count());
+ EXPECT_TRUE(s2c->peer_is_client());
+
+ EXPECT_TRUE(c2s->is_connected());
+ EXPECT_EQ(1u, static_cast<Session*>(c2s->get_priv().get())->get_count());
+ EXPECT_TRUE(c2s->peer_is_osd());
+
+ // closed in reuse_connection() -- EPIPE when writing banner/hello
+ EXPECT_FALSE(s2c_accepter->is_connected());
+
+ // established exactly once, never faulted and reconnected
+ EXPECT_EQ(cli_interceptor->count_step(c2s.get(), Interceptor::STEP::START_CLIENT_BANNER_EXCHANGE), 1u);
+ EXPECT_EQ(cli_interceptor->count_step(c2s.get(), Interceptor::STEP::SEND_RECONNECT), 0u);
+ EXPECT_EQ(cli_interceptor->count_step(c2s.get(), Interceptor::STEP::READY), 1u);
+
+ client_msgr->shutdown();
+ client_msgr->wait();
+ server_msgr->shutdown();
+ server_msgr->wait();
+}
+
+/**
+ * Scenario:
+ * - A connects to B
+ * - A sends client_ident to B
+ * - B fails before sending server_ident to A
+ * - A reconnects
+ */
+TEST_P(MessengerTest, MissingServerIdenTest) {
+ FakeDispatcher cli_dispatcher(false), srv_dispatcher(false);
+
+ TestInterceptor *cli_interceptor = new TestInterceptor();
+ TestInterceptor *srv_interceptor = new TestInterceptor();
+
+ server_msgr->set_policy(entity_name_t::TYPE_CLIENT, Messenger::Policy::stateful_server(0));
+ server_msgr->interceptor = srv_interceptor;
+
+ client_msgr->set_policy(entity_name_t::TYPE_OSD, Messenger::Policy::lossy_client(0));
+ client_msgr->interceptor = cli_interceptor;
+
+ entity_addr_t bind_addr;
+ bind_addr.parse("v2:127.0.0.1:3300");
+ server_msgr->bind(bind_addr);
+ server_msgr->add_dispatcher_head(&srv_dispatcher);
+ server_msgr->start();
+
+ bind_addr.parse("v2:127.0.0.1:3301");
+ client_msgr->bind(bind_addr);
+ client_msgr->add_dispatcher_head(&cli_dispatcher);
+ client_msgr->start();
+
+ // pause before sending server_ident message
+ srv_interceptor->breakpoint(Interceptor::STEP::SEND_SERVER_IDENTITY);
+
+ ConnectionRef c2s = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ MPing *m1 = new MPing();
+ ASSERT_EQ(c2s->send_message(m1), 0);
+
+ Connection *c2s_accepter = srv_interceptor->wait(Interceptor::STEP::SEND_SERVER_IDENTITY);
+ srv_interceptor->remove_bp(Interceptor::STEP::SEND_SERVER_IDENTITY);
+
+ // We inject a message from this side of the connection to force it to be
+ // in standby when we inject the failure below
+ MPing *m2 = new MPing();
+ ASSERT_EQ(c2s_accepter->send_message(m2), 0);
+
+ srv_interceptor->proceed(Interceptor::STEP::SEND_SERVER_IDENTITY, Interceptor::ACTION::FAIL);
+
+ {
+ std::unique_lock l{srv_dispatcher.lock};
+ srv_dispatcher.cond.wait(l, [&] { return srv_dispatcher.got_new; });
+ srv_dispatcher.got_new = false;
+ }
+
+ {
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+
+ ASSERT_TRUE(c2s->is_connected());
+ ASSERT_EQ(1u, static_cast<Session*>(c2s->get_priv().get())->get_count());
+ ASSERT_TRUE(c2s->peer_is_osd());
+
+ ASSERT_TRUE(c2s_accepter->is_connected());
+ ASSERT_EQ(1u, static_cast<Session*>(c2s_accepter->get_priv().get())->get_count());
+ ASSERT_TRUE(c2s_accepter->peer_is_client());
+
+ client_msgr->shutdown();
+ client_msgr->wait();
+ server_msgr->shutdown();
+ server_msgr->wait();
+
+ delete cli_interceptor;
+ delete srv_interceptor;
+}
+
+/**
+ * Scenario:
+ * - A connects to B
+ * - A sends client_ident to B
+ * - B fails before sending server_ident to A
+ * - A goes to standby
+ * - B reconnects to A
+ */
+TEST_P(MessengerTest, MissingServerIdenTest2) {
+ FakeDispatcher cli_dispatcher(false), srv_dispatcher(false);
+
+ TestInterceptor *cli_interceptor = new TestInterceptor();
+ TestInterceptor *srv_interceptor = new TestInterceptor();
+
+ server_msgr->set_policy(entity_name_t::TYPE_CLIENT, Messenger::Policy::lossless_peer(0));
+ server_msgr->interceptor = srv_interceptor;
+
+ client_msgr->set_policy(entity_name_t::TYPE_OSD, Messenger::Policy::lossless_peer(0));
+ client_msgr->interceptor = cli_interceptor;
+
+ entity_addr_t bind_addr;
+ bind_addr.parse("v2:127.0.0.1:3300");
+ server_msgr->bind(bind_addr);
+ server_msgr->add_dispatcher_head(&srv_dispatcher);
+ server_msgr->start();
+
+ bind_addr.parse("v2:127.0.0.1:3301");
+ client_msgr->bind(bind_addr);
+ client_msgr->add_dispatcher_head(&cli_dispatcher);
+ client_msgr->start();
+
+ // pause before sending server_ident message
+ srv_interceptor->breakpoint(Interceptor::STEP::SEND_SERVER_IDENTITY);
+
+ ConnectionRef c2s = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+
+ Connection *c2s_accepter = srv_interceptor->wait(Interceptor::STEP::SEND_SERVER_IDENTITY);
+ srv_interceptor->remove_bp(Interceptor::STEP::SEND_SERVER_IDENTITY);
+
+ // We inject a message from this side of the connection to force it to be
+ // in standby when we inject the failure below
+ MPing *m2 = new MPing();
+ ASSERT_EQ(c2s_accepter->send_message(m2), 0);
+
+ srv_interceptor->proceed(Interceptor::STEP::SEND_SERVER_IDENTITY, Interceptor::ACTION::FAIL);
+
+ {
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+
+ ASSERT_TRUE(c2s->is_connected());
+ ASSERT_EQ(1u, static_cast<Session*>(c2s->get_priv().get())->get_count());
+ ASSERT_TRUE(c2s->peer_is_osd());
+
+ ASSERT_TRUE(c2s_accepter->is_connected());
+ ASSERT_EQ(0u, static_cast<Session*>(c2s_accepter->get_priv().get())->get_count());
+ ASSERT_TRUE(c2s_accepter->peer_is_client());
+
+ client_msgr->shutdown();
+ client_msgr->wait();
+ server_msgr->shutdown();
+ server_msgr->wait();
+
+ delete cli_interceptor;
+ delete srv_interceptor;
+}
+
+/**
+ * Scenario:
+ * - A connects to B
+ * - A and B exchange messages
+ * - A fails
+ * - B goes into standby
+ * - A reconnects
+ */
+TEST_P(MessengerTest, ReconnectTest) {
+ FakeDispatcher cli_dispatcher(false), srv_dispatcher(true);
+
+ TestInterceptor *cli_interceptor = new TestInterceptor();
+ TestInterceptor *srv_interceptor = new TestInterceptor();
+
+ server_msgr->set_policy(entity_name_t::TYPE_CLIENT, Messenger::Policy::stateful_server(0));
+ server_msgr->interceptor = srv_interceptor;
+
+ client_msgr->set_policy(entity_name_t::TYPE_OSD, Messenger::Policy::lossless_peer(0));
+ client_msgr->interceptor = cli_interceptor;
+
+ entity_addr_t bind_addr;
+ bind_addr.parse("v2:127.0.0.1:3300");
+ server_msgr->bind(bind_addr);
+ server_msgr->add_dispatcher_head(&srv_dispatcher);
+ server_msgr->start();
+
+ bind_addr.parse("v2:127.0.0.1:3301");
+ client_msgr->bind(bind_addr);
+ client_msgr->add_dispatcher_head(&cli_dispatcher);
+ client_msgr->start();
+
+ ConnectionRef c2s = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+
+ MPing *m1 = new MPing();
+ ASSERT_EQ(c2s->send_message(m1), 0);
+
+ {
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+
+ ASSERT_TRUE(c2s->is_connected());
+ ASSERT_EQ(1u, static_cast<Session*>(c2s->get_priv().get())->get_count());
+ ASSERT_TRUE(c2s->peer_is_osd());
+
+ cli_interceptor->breakpoint(Interceptor::STEP::HANDLE_MESSAGE);
+
+ MPing *m2 = new MPing();
+ ASSERT_EQ(c2s->send_message(m2), 0);
+
+ cli_interceptor->wait(Interceptor::STEP::HANDLE_MESSAGE, c2s.get());
+ cli_interceptor->remove_bp(Interceptor::STEP::HANDLE_MESSAGE);
+
+ // at this point client and server are connected together
+
+ srv_interceptor->breakpoint(Interceptor::STEP::READY);
+
+ // failing client
+ cli_interceptor->proceed(Interceptor::STEP::HANDLE_MESSAGE, Interceptor::ACTION::FAIL);
+
+ MPing *m3 = new MPing();
+ ASSERT_EQ(c2s->send_message(m3), 0);
+
+ Connection *c2s_accepter = srv_interceptor->wait(Interceptor::STEP::READY);
+ // the srv end of theconnection is now paused at ready
+ // this means that the reconnect was successful
+ srv_interceptor->remove_bp(Interceptor::STEP::READY);
+
+ ASSERT_TRUE(c2s_accepter->peer_is_client());
+ // c2s_accepter sent 0 reconnect messages
+ ASSERT_EQ(srv_interceptor->count_step(c2s_accepter, Interceptor::STEP::SEND_RECONNECT), 0u);
+ // c2s_accepter sent 1 reconnect_ok messages
+ ASSERT_EQ(srv_interceptor->count_step(c2s_accepter, Interceptor::STEP::SEND_RECONNECT_OK), 1u);
+ // c2s sent 1 reconnect messages
+ ASSERT_EQ(cli_interceptor->count_step(c2s.get(), Interceptor::STEP::SEND_RECONNECT), 1u);
+ // c2s sent 0 reconnect_ok messages
+ ASSERT_EQ(cli_interceptor->count_step(c2s.get(), Interceptor::STEP::SEND_RECONNECT_OK), 0u);
+
+ srv_interceptor->proceed(15, Interceptor::ACTION::CONTINUE);
+
+ {
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+
+ client_msgr->shutdown();
+ client_msgr->wait();
+ server_msgr->shutdown();
+ server_msgr->wait();
+
+ delete cli_interceptor;
+ delete srv_interceptor;
+}
+
+/**
+ * Scenario:
+ * - A connects to B
+ * - A and B exchange messages
+ * - A fails
+ * - A reconnects // B reconnects
+ */
+TEST_P(MessengerTest, ReconnectRaceTest) {
+ FakeDispatcher cli_dispatcher(false), srv_dispatcher(true);
+
+ TestInterceptor *cli_interceptor = new TestInterceptor();
+ TestInterceptor *srv_interceptor = new TestInterceptor();
+
+ server_msgr->set_policy(entity_name_t::TYPE_CLIENT, Messenger::Policy::lossless_peer(0));
+ server_msgr->interceptor = srv_interceptor;
+
+ client_msgr->set_policy(entity_name_t::TYPE_OSD, Messenger::Policy::lossless_peer(0));
+ client_msgr->interceptor = cli_interceptor;
+
+ entity_addr_t bind_addr;
+ bind_addr.parse("v2:127.0.0.1:3300");
+ server_msgr->bind(bind_addr);
+ server_msgr->add_dispatcher_head(&srv_dispatcher);
+ server_msgr->start();
+
+ bind_addr.parse("v2:127.0.0.1:3301");
+ client_msgr->bind(bind_addr);
+ client_msgr->add_dispatcher_head(&cli_dispatcher);
+ client_msgr->start();
+
+ ConnectionRef c2s = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+
+ MPing *m1 = new MPing();
+ ASSERT_EQ(c2s->send_message(m1), 0);
+
+ {
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+
+ ASSERT_TRUE(c2s->is_connected());
+ ASSERT_EQ(1u, static_cast<Session*>(c2s->get_priv().get())->get_count());
+ ASSERT_TRUE(c2s->peer_is_osd());
+
+ cli_interceptor->breakpoint(Interceptor::STEP::HANDLE_MESSAGE);
+
+ MPing *m2 = new MPing();
+ ASSERT_EQ(c2s->send_message(m2), 0);
+
+ cli_interceptor->wait(Interceptor::STEP::HANDLE_MESSAGE, c2s.get());
+ cli_interceptor->remove_bp(Interceptor::STEP::HANDLE_MESSAGE);
+
+ // at this point client and server are connected together
+
+ // force both client and server to race on reconnect
+ cli_interceptor->breakpoint(Interceptor::STEP::SEND_RECONNECT);
+ srv_interceptor->breakpoint(Interceptor::STEP::SEND_RECONNECT);
+
+ // failing client
+ // this will cause both client and server to reconnect at the same time
+ cli_interceptor->proceed(Interceptor::STEP::HANDLE_MESSAGE, Interceptor::ACTION::FAIL);
+
+ MPing *m3 = new MPing();
+ ASSERT_EQ(c2s->send_message(m3), 0);
+
+ cli_interceptor->wait(Interceptor::STEP::SEND_RECONNECT, c2s.get());
+ srv_interceptor->wait(Interceptor::STEP::SEND_RECONNECT);
+
+ cli_interceptor->remove_bp(Interceptor::STEP::SEND_RECONNECT);
+ srv_interceptor->remove_bp(Interceptor::STEP::SEND_RECONNECT);
+
+ // pause on "ready"
+ srv_interceptor->breakpoint(Interceptor::STEP::READY);
+
+ cli_interceptor->proceed(Interceptor::STEP::SEND_RECONNECT, Interceptor::ACTION::CONTINUE);
+ srv_interceptor->proceed(Interceptor::STEP::SEND_RECONNECT, Interceptor::ACTION::CONTINUE);
+
+ Connection *c2s_accepter = srv_interceptor->wait(Interceptor::STEP::READY);
+
+ // the server has reconnected and is "ready"
+ srv_interceptor->remove_bp(Interceptor::STEP::READY);
+
+ ASSERT_TRUE(c2s_accepter->peer_is_client());
+ ASSERT_TRUE(c2s->peer_is_osd());
+
+ // the server should win the reconnect race
+
+ // c2s_accepter sent 1 or 2 reconnect messages
+ ASSERT_LT(srv_interceptor->count_step(c2s_accepter, Interceptor::STEP::SEND_RECONNECT), 3u);
+ ASSERT_GT(srv_interceptor->count_step(c2s_accepter, Interceptor::STEP::SEND_RECONNECT), 0u);
+ // c2s_accepter sent 0 reconnect_ok messages
+ ASSERT_EQ(srv_interceptor->count_step(c2s_accepter, Interceptor::STEP::SEND_RECONNECT_OK), 0u);
+ // c2s sent 1 reconnect messages
+ ASSERT_EQ(cli_interceptor->count_step(c2s.get(), Interceptor::STEP::SEND_RECONNECT), 1u);
+ // c2s sent 1 reconnect_ok messages
+ ASSERT_EQ(cli_interceptor->count_step(c2s.get(), Interceptor::STEP::SEND_RECONNECT_OK), 1u);
+
+ if (srv_interceptor->count_step(c2s_accepter, Interceptor::STEP::SEND_RECONNECT) == 2) {
+ // if the server send the reconnect message two times then
+ // the client must have sent a session retry message to the server
+ ASSERT_EQ(cli_interceptor->count_step(c2s.get(), Interceptor::STEP::SESSION_RETRY), 1u);
+ } else {
+ ASSERT_EQ(cli_interceptor->count_step(c2s.get(), Interceptor::STEP::SESSION_RETRY), 0u);
+ }
+
+ srv_interceptor->proceed(Interceptor::STEP::READY, Interceptor::ACTION::CONTINUE);
+
+ {
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+
+ client_msgr->shutdown();
+ client_msgr->wait();
+ server_msgr->shutdown();
+ server_msgr->wait();
+
+ delete cli_interceptor;
+ delete srv_interceptor;
+}
+
+TEST_P(MessengerTest, SimpleTest) {
+ FakeDispatcher cli_dispatcher(false), srv_dispatcher(true);
+ entity_addr_t bind_addr;
+ bind_addr.parse("v2:127.0.0.1");
+ server_msgr->bind(bind_addr);
+ server_msgr->add_dispatcher_head(&srv_dispatcher);
+ server_msgr->start();
+
+ client_msgr->add_dispatcher_head(&cli_dispatcher);
+ client_msgr->start();
+
+ // 1. simple round trip
+ MPing *m = new MPing();
+ ConnectionRef conn = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ {
+ ASSERT_EQ(conn->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ ASSERT_TRUE(conn->is_connected());
+ ASSERT_EQ(1u, static_cast<Session*>(conn->get_priv().get())->get_count());
+ ASSERT_TRUE(conn->peer_is_osd());
+
+ // 2. test rebind port
+ set<int> avoid_ports;
+ for (int i = 0; i < 10 ; i++) {
+ for (auto a : server_msgr->get_myaddrs().v) {
+ avoid_ports.insert(a.get_port() + i);
+ }
+ }
+ server_msgr->rebind(avoid_ports);
+ for (auto a : server_msgr->get_myaddrs().v) {
+ ASSERT_TRUE(avoid_ports.count(a.get_port()) == 0);
+ }
+
+ conn = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ {
+ m = new MPing();
+ ASSERT_EQ(conn->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ ASSERT_EQ(1U, static_cast<Session*>(conn->get_priv().get())->get_count());
+
+ // 3. test markdown connection
+ conn->mark_down();
+ ASSERT_FALSE(conn->is_connected());
+
+ // 4. test failed connection
+ server_msgr->shutdown();
+ server_msgr->wait();
+
+ m = new MPing();
+ conn->send_message(m);
+ CHECK_AND_WAIT_TRUE(!conn->is_connected());
+ ASSERT_FALSE(conn->is_connected());
+
+ // 5. loopback connection
+ srv_dispatcher.loopback = true;
+ conn = client_msgr->get_loopback_connection();
+ {
+ m = new MPing();
+ ASSERT_EQ(conn->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ srv_dispatcher.loopback = false;
+ ASSERT_EQ(1U, static_cast<Session*>(conn->get_priv().get())->get_count());
+ client_msgr->shutdown();
+ client_msgr->wait();
+ server_msgr->shutdown();
+ server_msgr->wait();
+}
+
+TEST_P(MessengerTest, SimpleMsgr2Test) {
+ FakeDispatcher cli_dispatcher(false), srv_dispatcher(true);
+ entity_addr_t legacy_addr;
+ legacy_addr.parse("v1:127.0.0.1");
+ entity_addr_t msgr2_addr;
+ msgr2_addr.parse("v2:127.0.0.1");
+ entity_addrvec_t bind_addrs;
+ bind_addrs.v.push_back(legacy_addr);
+ bind_addrs.v.push_back(msgr2_addr);
+ server_msgr->bindv(bind_addrs);
+ server_msgr->add_dispatcher_head(&srv_dispatcher);
+ server_msgr->start();
+
+ client_msgr->add_dispatcher_head(&cli_dispatcher);
+ client_msgr->start();
+
+ // 1. simple round trip
+ MPing *m = new MPing();
+ ConnectionRef conn = client_msgr->connect_to(
+ server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ {
+ ASSERT_EQ(conn->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ ASSERT_TRUE(conn->is_connected());
+ ASSERT_EQ(1u, static_cast<Session*>(conn->get_priv().get())->get_count());
+ ASSERT_TRUE(conn->peer_is_osd());
+
+ // 2. test rebind port
+ set<int> avoid_ports;
+ for (int i = 0; i < 10 ; i++) {
+ for (auto a : server_msgr->get_myaddrs().v) {
+ avoid_ports.insert(a.get_port() + i);
+ }
+ }
+ server_msgr->rebind(avoid_ports);
+ for (auto a : server_msgr->get_myaddrs().v) {
+ ASSERT_TRUE(avoid_ports.count(a.get_port()) == 0);
+ }
+
+ conn = client_msgr->connect_to(
+ server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ {
+ m = new MPing();
+ ASSERT_EQ(conn->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ ASSERT_EQ(1U, static_cast<Session*>(conn->get_priv().get())->get_count());
+
+ // 3. test markdown connection
+ conn->mark_down();
+ ASSERT_FALSE(conn->is_connected());
+
+ // 4. test failed connection
+ server_msgr->shutdown();
+ server_msgr->wait();
+
+ m = new MPing();
+ conn->send_message(m);
+ CHECK_AND_WAIT_TRUE(!conn->is_connected());
+ ASSERT_FALSE(conn->is_connected());
+
+ // 5. loopback connection
+ srv_dispatcher.loopback = true;
+ conn = client_msgr->get_loopback_connection();
+ {
+ m = new MPing();
+ ASSERT_EQ(conn->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ srv_dispatcher.loopback = false;
+ ASSERT_EQ(1U, static_cast<Session*>(conn->get_priv().get())->get_count());
+ client_msgr->shutdown();
+ client_msgr->wait();
+ server_msgr->shutdown();
+ server_msgr->wait();
+}
+
+TEST_P(MessengerTest, FeatureTest) {
+ FakeDispatcher cli_dispatcher(false), srv_dispatcher(true);
+ entity_addr_t bind_addr;
+ bind_addr.parse("v2:127.0.0.1");
+ uint64_t all_feature_supported, feature_required, feature_supported = 0;
+ for (int i = 0; i < 10; i++)
+ feature_supported |= 1ULL << i;
+ feature_supported |= CEPH_FEATUREMASK_MSG_ADDR2;
+ feature_supported |= CEPH_FEATUREMASK_SERVER_NAUTILUS;
+ feature_required = feature_supported | 1ULL << 13;
+ all_feature_supported = feature_required | 1ULL << 14;
+
+ Messenger::Policy p = server_msgr->get_policy(entity_name_t::TYPE_CLIENT);
+ p.features_required = feature_required;
+ server_msgr->set_policy(entity_name_t::TYPE_CLIENT, p);
+ server_msgr->bind(bind_addr);
+ server_msgr->add_dispatcher_head(&srv_dispatcher);
+ server_msgr->start();
+
+ // 1. Suppose if only support less than required
+ p = client_msgr->get_policy(entity_name_t::TYPE_OSD);
+ p.features_supported = feature_supported;
+ client_msgr->set_policy(entity_name_t::TYPE_OSD, p);
+ client_msgr->add_dispatcher_head(&cli_dispatcher);
+ client_msgr->start();
+
+ MPing *m = new MPing();
+ ConnectionRef conn = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ conn->send_message(m);
+ CHECK_AND_WAIT_TRUE(!conn->is_connected());
+ // should failed build a connection
+ ASSERT_FALSE(conn->is_connected());
+
+ client_msgr->shutdown();
+ client_msgr->wait();
+
+ // 2. supported met required
+ p = client_msgr->get_policy(entity_name_t::TYPE_OSD);
+ p.features_supported = all_feature_supported;
+ client_msgr->set_policy(entity_name_t::TYPE_OSD, p);
+ client_msgr->start();
+
+ conn = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ {
+ m = new MPing();
+ ASSERT_EQ(conn->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ ASSERT_EQ(1U, static_cast<Session*>(conn->get_priv().get())->get_count());
+
+ server_msgr->shutdown();
+ client_msgr->shutdown();
+ server_msgr->wait();
+ client_msgr->wait();
+}
+
+TEST_P(MessengerTest, TimeoutTest) {
+ g_ceph_context->_conf.set_val("ms_connection_idle_timeout", "1");
+ FakeDispatcher cli_dispatcher(false), srv_dispatcher(true);
+ entity_addr_t bind_addr;
+ bind_addr.parse("v2:127.0.0.1");
+ server_msgr->bind(bind_addr);
+ server_msgr->add_dispatcher_head(&srv_dispatcher);
+ server_msgr->start();
+
+ client_msgr->add_dispatcher_head(&cli_dispatcher);
+ client_msgr->start();
+
+ // 1. build the connection
+ MPing *m = new MPing();
+ ConnectionRef conn = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ {
+ ASSERT_EQ(conn->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ ASSERT_TRUE(conn->is_connected());
+ ASSERT_EQ(1U, static_cast<Session*>(conn->get_priv().get())->get_count());
+ ASSERT_TRUE(conn->peer_is_osd());
+
+ // 2. wait for idle
+ usleep(2500*1000);
+ ASSERT_FALSE(conn->is_connected());
+
+ server_msgr->shutdown();
+ server_msgr->wait();
+
+ client_msgr->shutdown();
+ client_msgr->wait();
+ g_ceph_context->_conf.set_val("ms_connection_idle_timeout", "900");
+}
+
+TEST_P(MessengerTest, StatefulTest) {
+ Message *m;
+ FakeDispatcher cli_dispatcher(false), srv_dispatcher(true);
+ entity_addr_t bind_addr;
+ bind_addr.parse("v2:127.0.0.1");
+ Messenger::Policy p = Messenger::Policy::stateful_server(0);
+ server_msgr->set_policy(entity_name_t::TYPE_CLIENT, p);
+ p = Messenger::Policy::lossless_client(0);
+ client_msgr->set_policy(entity_name_t::TYPE_OSD, p);
+
+ server_msgr->bind(bind_addr);
+ server_msgr->add_dispatcher_head(&srv_dispatcher);
+ server_msgr->start();
+ client_msgr->add_dispatcher_head(&cli_dispatcher);
+ client_msgr->start();
+
+ // 1. test for server standby
+ ConnectionRef conn = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ {
+ m = new MPing();
+ ASSERT_EQ(conn->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ ASSERT_EQ(1U, static_cast<Session*>(conn->get_priv().get())->get_count());
+ conn->mark_down();
+ ASSERT_FALSE(conn->is_connected());
+ ConnectionRef server_conn = server_msgr->connect_to(
+ client_msgr->get_mytype(), srv_dispatcher.last_accept);
+ // don't lose state
+ ASSERT_EQ(1U, static_cast<Session*>(server_conn->get_priv().get())->get_count());
+
+ srv_dispatcher.got_new = false;
+ conn = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ {
+ m = new MPing();
+ ASSERT_EQ(conn->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ ASSERT_EQ(1U, static_cast<Session*>(conn->get_priv().get())->get_count());
+ server_conn = server_msgr->connect_to(client_msgr->get_mytype(),
+ srv_dispatcher.last_accept);
+ {
+ std::unique_lock l{srv_dispatcher.lock};
+ srv_dispatcher.cond.wait(l, [&] { return srv_dispatcher.got_remote_reset; });
+ }
+
+ // 2. test for client reconnect
+ ASSERT_FALSE(cli_dispatcher.got_remote_reset);
+ cli_dispatcher.got_connect = false;
+ cli_dispatcher.got_new = false;
+ cli_dispatcher.got_remote_reset = false;
+ server_conn->mark_down();
+ ASSERT_FALSE(server_conn->is_connected());
+ // ensure client detect server socket closed
+ {
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_remote_reset; });
+ cli_dispatcher.got_remote_reset = false;
+ }
+ {
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_connect; });
+ cli_dispatcher.got_connect = false;
+ }
+ CHECK_AND_WAIT_TRUE(conn->is_connected());
+ ASSERT_TRUE(conn->is_connected());
+
+ {
+ m = new MPing();
+ ASSERT_EQ(conn->send_message(m), 0);
+ ASSERT_TRUE(conn->is_connected());
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ // resetcheck happen
+ ASSERT_EQ(1U, static_cast<Session*>(conn->get_priv().get())->get_count());
+ server_conn = server_msgr->connect_to(client_msgr->get_mytype(),
+ srv_dispatcher.last_accept);
+ ASSERT_EQ(1U, static_cast<Session*>(server_conn->get_priv().get())->get_count());
+ cli_dispatcher.got_remote_reset = false;
+
+ server_msgr->shutdown();
+ client_msgr->shutdown();
+ server_msgr->wait();
+ client_msgr->wait();
+}
+
+TEST_P(MessengerTest, StatelessTest) {
+ Message *m;
+ FakeDispatcher cli_dispatcher(false), srv_dispatcher(true);
+ entity_addr_t bind_addr;
+ bind_addr.parse("v2:127.0.0.1");
+ Messenger::Policy p = Messenger::Policy::stateless_server(0);
+ server_msgr->set_policy(entity_name_t::TYPE_CLIENT, p);
+ p = Messenger::Policy::lossy_client(0);
+ client_msgr->set_policy(entity_name_t::TYPE_OSD, p);
+
+ server_msgr->bind(bind_addr);
+ server_msgr->add_dispatcher_head(&srv_dispatcher);
+ server_msgr->start();
+ client_msgr->add_dispatcher_head(&cli_dispatcher);
+ client_msgr->start();
+
+ // 1. test for server lose state
+ ConnectionRef conn = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ {
+ m = new MPing();
+ ASSERT_EQ(conn->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ ASSERT_EQ(1U, static_cast<Session*>(conn->get_priv().get())->get_count());
+ conn->mark_down();
+ ASSERT_FALSE(conn->is_connected());
+
+ srv_dispatcher.got_new = false;
+ ConnectionRef server_conn;
+ srv_dispatcher.last_accept_con_ptr = &server_conn;
+ conn = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ {
+ m = new MPing();
+ ASSERT_EQ(conn->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ ASSERT_EQ(1U, static_cast<Session*>(conn->get_priv().get())->get_count());
+ ASSERT_TRUE(server_conn);
+
+ // server lose state
+ {
+ std::unique_lock l{srv_dispatcher.lock};
+ srv_dispatcher.cond.wait(l, [&] { return srv_dispatcher.got_new; });
+ }
+ ASSERT_EQ(1U, static_cast<Session*>(server_conn->get_priv().get())->get_count());
+
+ // 2. test for client lossy
+ server_conn->mark_down();
+ ASSERT_FALSE(server_conn->is_connected());
+ conn->send_keepalive();
+ CHECK_AND_WAIT_TRUE(!conn->is_connected());
+ ASSERT_FALSE(conn->is_connected());
+ conn = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ {
+ m = new MPing();
+ ASSERT_EQ(conn->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ ASSERT_EQ(1U, static_cast<Session*>(conn->get_priv().get())->get_count());
+
+ server_msgr->shutdown();
+ client_msgr->shutdown();
+ server_msgr->wait();
+ client_msgr->wait();
+}
+
+TEST_P(MessengerTest, AnonTest) {
+ Message *m;
+ FakeDispatcher cli_dispatcher(false), srv_dispatcher(true);
+ entity_addr_t bind_addr;
+ bind_addr.parse("v2:127.0.0.1");
+ Messenger::Policy p = Messenger::Policy::stateless_server(0);
+ server_msgr->set_policy(entity_name_t::TYPE_CLIENT, p);
+ p = Messenger::Policy::lossy_client(0);
+ client_msgr->set_policy(entity_name_t::TYPE_OSD, p);
+
+ server_msgr->bind(bind_addr);
+ server_msgr->add_dispatcher_head(&srv_dispatcher);
+ server_msgr->start();
+ client_msgr->add_dispatcher_head(&cli_dispatcher);
+ client_msgr->start();
+
+ ConnectionRef server_con_a, server_con_b;
+
+ // a
+ srv_dispatcher.last_accept_con_ptr = &server_con_a;
+ ConnectionRef con_a = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs(),
+ true);
+ {
+ m = new MPing();
+ ASSERT_EQ(con_a->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ ASSERT_EQ(1U, static_cast<Session*>(con_a->get_priv().get())->get_count());
+
+ // b
+ srv_dispatcher.last_accept_con_ptr = &server_con_b;
+ ConnectionRef con_b = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs(),
+ true);
+ {
+ m = new MPing();
+ ASSERT_EQ(con_b->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ ASSERT_EQ(1U, static_cast<Session*>(con_b->get_priv().get())->get_count());
+
+ // these should be distinct
+ ASSERT_NE(con_a, con_b);
+ ASSERT_NE(server_con_a, server_con_b);
+
+ // and both connected
+ {
+ m = new MPing();
+ ASSERT_EQ(con_a->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ {
+ m = new MPing();
+ ASSERT_EQ(con_b->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+
+ // clean up
+ con_a->mark_down();
+ ASSERT_FALSE(con_a->is_connected());
+ con_b->mark_down();
+ ASSERT_FALSE(con_b->is_connected());
+
+ server_msgr->shutdown();
+ client_msgr->shutdown();
+ server_msgr->wait();
+ client_msgr->wait();
+}
+
+TEST_P(MessengerTest, ClientStandbyTest) {
+ Message *m;
+ FakeDispatcher cli_dispatcher(false), srv_dispatcher(true);
+ entity_addr_t bind_addr;
+ bind_addr.parse("v2:127.0.0.1");
+ Messenger::Policy p = Messenger::Policy::stateful_server(0);
+ server_msgr->set_policy(entity_name_t::TYPE_CLIENT, p);
+ p = Messenger::Policy::lossless_peer(0);
+ client_msgr->set_policy(entity_name_t::TYPE_OSD, p);
+
+ server_msgr->bind(bind_addr);
+ server_msgr->add_dispatcher_head(&srv_dispatcher);
+ server_msgr->start();
+ client_msgr->add_dispatcher_head(&cli_dispatcher);
+ client_msgr->start();
+
+ // 1. test for client standby, resetcheck
+ ConnectionRef conn = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ {
+ m = new MPing();
+ ASSERT_EQ(conn->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ ASSERT_EQ(1U, static_cast<Session*>(conn->get_priv().get())->get_count());
+ ConnectionRef server_conn = server_msgr->connect_to(
+ client_msgr->get_mytype(),
+ srv_dispatcher.last_accept);
+ ASSERT_FALSE(cli_dispatcher.got_remote_reset);
+ cli_dispatcher.got_connect = false;
+ server_conn->mark_down();
+ ASSERT_FALSE(server_conn->is_connected());
+ // client should be standby
+ usleep(300*1000);
+ // client should be standby, so we use original connection
+ {
+ // Try send message to verify got remote reset callback
+ m = new MPing();
+ ASSERT_EQ(conn->send_message(m), 0);
+ {
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_remote_reset; });
+ cli_dispatcher.got_remote_reset = false;
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_connect; });
+ cli_dispatcher.got_connect = false;
+ }
+ CHECK_AND_WAIT_TRUE(conn->is_connected());
+ ASSERT_TRUE(conn->is_connected());
+ m = new MPing();
+ ASSERT_EQ(conn->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ ASSERT_EQ(1U, static_cast<Session*>(conn->get_priv().get())->get_count());
+ server_conn = server_msgr->connect_to(client_msgr->get_mytype(),
+ srv_dispatcher.last_accept);
+ ASSERT_EQ(1U, static_cast<Session*>(server_conn->get_priv().get())->get_count());
+
+ server_msgr->shutdown();
+ client_msgr->shutdown();
+ server_msgr->wait();
+ client_msgr->wait();
+}
+
+TEST_P(MessengerTest, AuthTest) {
+ g_ceph_context->_conf.set_val("auth_cluster_required", "cephx");
+ g_ceph_context->_conf.set_val("auth_service_required", "cephx");
+ g_ceph_context->_conf.set_val("auth_client_required", "cephx");
+ FakeDispatcher cli_dispatcher(false), srv_dispatcher(true);
+ entity_addr_t bind_addr;
+ bind_addr.parse("v2:127.0.0.1");
+ server_msgr->bind(bind_addr);
+ server_msgr->add_dispatcher_head(&srv_dispatcher);
+ server_msgr->start();
+
+ client_msgr->add_dispatcher_head(&cli_dispatcher);
+ client_msgr->start();
+
+ // 1. simple auth round trip
+ MPing *m = new MPing();
+ ConnectionRef conn = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ {
+ ASSERT_EQ(conn->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ ASSERT_TRUE(conn->is_connected());
+ ASSERT_EQ(1U, static_cast<Session*>(conn->get_priv().get())->get_count());
+
+ // 2. mix auth
+ g_ceph_context->_conf.set_val("auth_cluster_required", "none");
+ g_ceph_context->_conf.set_val("auth_service_required", "none");
+ g_ceph_context->_conf.set_val("auth_client_required", "none");
+ conn->mark_down();
+ ASSERT_FALSE(conn->is_connected());
+ conn = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ {
+ MPing *m = new MPing();
+ ASSERT_EQ(conn->send_message(m), 0);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ cli_dispatcher.got_new = false;
+ }
+ ASSERT_TRUE(conn->is_connected());
+ ASSERT_EQ(1U, static_cast<Session*>(conn->get_priv().get())->get_count());
+ server_msgr->shutdown();
+ client_msgr->shutdown();
+ server_msgr->wait();
+ client_msgr->wait();
+}
+
+TEST_P(MessengerTest, MessageTest) {
+ FakeDispatcher cli_dispatcher(false), srv_dispatcher(true);
+ entity_addr_t bind_addr;
+ bind_addr.parse("v2:127.0.0.1");
+ Messenger::Policy p = Messenger::Policy::stateful_server(0);
+ server_msgr->set_policy(entity_name_t::TYPE_CLIENT, p);
+ p = Messenger::Policy::lossless_peer(0);
+ client_msgr->set_policy(entity_name_t::TYPE_OSD, p);
+
+ server_msgr->bind(bind_addr);
+ server_msgr->add_dispatcher_head(&srv_dispatcher);
+ server_msgr->start();
+ client_msgr->add_dispatcher_head(&cli_dispatcher);
+ client_msgr->start();
+
+
+ // 1. A very large "front"(as well as "payload")
+ // Because a external message need to invade Messenger::decode_message,
+ // here we only use existing message class(MCommand)
+ ConnectionRef conn = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ {
+ uuid_d uuid;
+ uuid.generate_random();
+ vector<string> cmds;
+ string s("abcdefghijklmnopqrstuvwxyz");
+ for (int i = 0; i < 1024*30; i++)
+ cmds.push_back(s);
+ MCommand *m = new MCommand(uuid);
+ m->cmd = cmds;
+ conn->send_message(m);
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait_for(l, 500s, [&] { return cli_dispatcher.got_new; });
+ ASSERT_TRUE(cli_dispatcher.got_new);
+ cli_dispatcher.got_new = false;
+ }
+
+ // 2. A very large "data"
+ {
+ bufferlist bl;
+ string s("abcdefghijklmnopqrstuvwxyz");
+ for (int i = 0; i < 1024*30; i++)
+ bl.append(s);
+ MPing *m = new MPing();
+ m->set_data(bl);
+ conn->send_message(m);
+ utime_t t;
+ t += 1000*1000*500;
+ std::unique_lock l{cli_dispatcher.lock};
+ cli_dispatcher.cond.wait(l, [&] { return cli_dispatcher.got_new; });
+ ASSERT_TRUE(cli_dispatcher.got_new);
+ cli_dispatcher.got_new = false;
+ }
+ server_msgr->shutdown();
+ client_msgr->shutdown();
+ server_msgr->wait();
+ client_msgr->wait();
+}
+
+
+class SyntheticWorkload;
+
+struct Payload {
+ enum Who : uint8_t {
+ PING = 0,
+ PONG = 1,
+ };
+ uint8_t who = 0;
+ uint64_t seq = 0;
+ bufferlist data;
+
+ Payload(Who who, uint64_t seq, const bufferlist& data)
+ : who(who), seq(seq), data(data)
+ {}
+ Payload() = default;
+ DENC(Payload, v, p) {
+ DENC_START(1, 1, p);
+ denc(v.who, p);
+ denc(v.seq, p);
+ denc(v.data, p);
+ DENC_FINISH(p);
+ }
+};
+WRITE_CLASS_DENC(Payload)
+
+ostream& operator<<(ostream& out, const Payload &pl)
+{
+ return out << "reply=" << pl.who << " i = " << pl.seq;
+}
+
+class SyntheticDispatcher : public Dispatcher {
+ public:
+ ceph::mutex lock = ceph::make_mutex("SyntheticDispatcher::lock");
+ ceph::condition_variable cond;
+ bool is_server;
+ bool got_new;
+ bool got_remote_reset;
+ bool got_connect;
+ map<ConnectionRef, list<uint64_t> > conn_sent;
+ map<uint64_t, bufferlist> sent;
+ atomic<uint64_t> index;
+ SyntheticWorkload *workload;
+
+ SyntheticDispatcher(bool s, SyntheticWorkload *wl):
+ Dispatcher(g_ceph_context), is_server(s), got_new(false),
+ got_remote_reset(false), got_connect(false), index(0), workload(wl) {
+ }
+ bool ms_can_fast_dispatch_any() const override { return true; }
+ bool ms_can_fast_dispatch(const Message *m) const override {
+ switch (m->get_type()) {
+ case CEPH_MSG_PING:
+ case MSG_COMMAND:
+ return true;
+ default:
+ return false;
+ }
+ }
+
+ void ms_handle_fast_connect(Connection *con) override {
+ std::lock_guard l{lock};
+ list<uint64_t> c = conn_sent[con];
+ for (list<uint64_t>::iterator it = c.begin();
+ it != c.end(); ++it)
+ sent.erase(*it);
+ conn_sent.erase(con);
+ got_connect = true;
+ cond.notify_all();
+ }
+ void ms_handle_fast_accept(Connection *con) override {
+ std::lock_guard l{lock};
+ list<uint64_t> c = conn_sent[con];
+ for (list<uint64_t>::iterator it = c.begin();
+ it != c.end(); ++it)
+ sent.erase(*it);
+ conn_sent.erase(con);
+ cond.notify_all();
+ }
+ bool ms_dispatch(Message *m) override {
+ ceph_abort();
+ }
+ bool ms_handle_reset(Connection *con) override;
+ void ms_handle_remote_reset(Connection *con) override {
+ std::lock_guard l{lock};
+ list<uint64_t> c = conn_sent[con];
+ for (list<uint64_t>::iterator it = c.begin();
+ it != c.end(); ++it)
+ sent.erase(*it);
+ conn_sent.erase(con);
+ got_remote_reset = true;
+ }
+ bool ms_handle_refused(Connection *con) override {
+ return false;
+ }
+ void ms_fast_dispatch(Message *m) override {
+ // MSG_COMMAND is used to disorganize regular message flow
+ if (m->get_type() == MSG_COMMAND) {
+ m->put();
+ return ;
+ }
+
+ Payload pl;
+ auto p = m->get_data().cbegin();
+ decode(pl, p);
+ if (pl.who == Payload::PING) {
+ lderr(g_ceph_context) << __func__ << " conn=" << m->get_connection() << pl << dendl;
+ reply_message(m, pl);
+ m->put();
+ std::lock_guard l{lock};
+ got_new = true;
+ cond.notify_all();
+ } else {
+ std::lock_guard l{lock};
+ if (sent.count(pl.seq)) {
+ lderr(g_ceph_context) << __func__ << " conn=" << m->get_connection() << pl << dendl;
+ ASSERT_EQ(conn_sent[m->get_connection()].front(), pl.seq);
+ ASSERT_TRUE(pl.data.contents_equal(sent[pl.seq]));
+ conn_sent[m->get_connection()].pop_front();
+ sent.erase(pl.seq);
+ }
+ m->put();
+ got_new = true;
+ cond.notify_all();
+ }
+ }
+
+ int ms_handle_fast_authentication(Connection *con) override {
+ return 1;
+ }
+
+ void reply_message(const Message *m, Payload& pl) {
+ pl.who = Payload::PONG;
+ bufferlist bl;
+ encode(pl, bl);
+ MPing *rm = new MPing();
+ rm->set_data(bl);
+ m->get_connection()->send_message(rm);
+ lderr(g_ceph_context) << __func__ << " conn=" << m->get_connection() << " reply m=" << m << " i=" << pl.seq << dendl;
+ }
+
+ void send_message_wrap(ConnectionRef con, const bufferlist& data) {
+ Message *m = new MPing();
+ Payload pl{Payload::PING, index++, data};
+ bufferlist bl;
+ encode(pl, bl);
+ m->set_data(bl);
+ if (!con->get_messenger()->get_default_policy().lossy) {
+ std::lock_guard l{lock};
+ sent[pl.seq] = pl.data;
+ conn_sent[con].push_back(pl.seq);
+ }
+ lderr(g_ceph_context) << __func__ << " conn=" << con.get() << " send m=" << m << " i=" << pl.seq << dendl;
+ ASSERT_EQ(0, con->send_message(m));
+ }
+
+ uint64_t get_pending() {
+ std::lock_guard l{lock};
+ return sent.size();
+ }
+
+ void clear_pending(ConnectionRef con) {
+ std::lock_guard l{lock};
+
+ for (list<uint64_t>::iterator it = conn_sent[con].begin();
+ it != conn_sent[con].end(); ++it)
+ sent.erase(*it);
+ conn_sent.erase(con);
+ }
+
+ void print() {
+ for (auto && p : conn_sent) {
+ if (!p.second.empty()) {
+ lderr(g_ceph_context) << __func__ << " " << p.first << " wait " << p.second.size() << dendl;
+ }
+ }
+ }
+};
+
+
+class SyntheticWorkload {
+ ceph::mutex lock = ceph::make_mutex("SyntheticWorkload::lock");
+ ceph::condition_variable cond;
+ set<Messenger*> available_servers;
+ set<Messenger*> available_clients;
+ Messenger::Policy client_policy;
+ map<ConnectionRef, pair<Messenger*, Messenger*> > available_connections;
+ SyntheticDispatcher dispatcher;
+ gen_type rng;
+ vector<bufferlist> rand_data;
+ DummyAuthClientServer dummy_auth;
+
+ public:
+ const unsigned max_in_flight = 0;
+ const unsigned max_connections = 0;
+ static const unsigned max_message_len = 1024 * 1024 * 4;
+
+ SyntheticWorkload(int servers, int clients, string type, int random_num,
+ Messenger::Policy srv_policy, Messenger::Policy cli_policy,
+ int _max_in_flight = 64, int _max_connections = 128)
+ : client_policy(cli_policy),
+ dispatcher(false, this),
+ rng(time(NULL)),
+ dummy_auth(g_ceph_context),
+ max_in_flight(_max_in_flight),
+ max_connections(_max_connections) {
+
+ dummy_auth.auth_registry.refresh_config();
+ Messenger *msgr;
+ int base_port = 16800;
+ entity_addr_t bind_addr;
+ char addr[64];
+ for (int i = 0; i < servers; ++i) {
+ msgr = Messenger::create(g_ceph_context, type, entity_name_t::OSD(0),
+ "server", getpid()+i);
+ snprintf(addr, sizeof(addr), "v2:127.0.0.1:%d",
+ base_port+i);
+ bind_addr.parse(addr);
+ msgr->bind(bind_addr);
+ msgr->add_dispatcher_head(&dispatcher);
+ msgr->set_auth_client(&dummy_auth);
+ msgr->set_auth_server(&dummy_auth);
+
+ ceph_assert(msgr);
+ msgr->set_default_policy(srv_policy);
+ available_servers.insert(msgr);
+ msgr->start();
+ }
+
+ for (int i = 0; i < clients; ++i) {
+ msgr = Messenger::create(g_ceph_context, type, entity_name_t::CLIENT(-1),
+ "client", getpid()+i+servers);
+ if (cli_policy.standby) {
+ snprintf(addr, sizeof(addr), "v2:127.0.0.1:%d",
+ base_port+i+servers);
+ bind_addr.parse(addr);
+ msgr->bind(bind_addr);
+ }
+ msgr->add_dispatcher_head(&dispatcher);
+ msgr->set_auth_client(&dummy_auth);
+ msgr->set_auth_server(&dummy_auth);
+
+ ceph_assert(msgr);
+ msgr->set_default_policy(cli_policy);
+ available_clients.insert(msgr);
+ msgr->start();
+ }
+
+ for (int i = 0; i < random_num; i++) {
+ bufferlist bl;
+ boost::uniform_int<> u(32, max_message_len);
+ uint64_t value_len = u(rng);
+ bufferptr bp(value_len);
+ bp.zero();
+ for (uint64_t j = 0; j < value_len-sizeof(i); ) {
+ memcpy(bp.c_str()+j, &i, sizeof(i));
+ j += 4096;
+ }
+
+ bl.append(bp);
+ rand_data.push_back(bl);
+ }
+ }
+
+ ConnectionRef _get_random_connection() {
+ while (dispatcher.get_pending() > max_in_flight) {
+ lock.unlock();
+ usleep(500);
+ lock.lock();
+ }
+ ceph_assert(ceph_mutex_is_locked(lock));
+ boost::uniform_int<> choose(0, available_connections.size() - 1);
+ int index = choose(rng);
+ map<ConnectionRef, pair<Messenger*, Messenger*> >::iterator i = available_connections.begin();
+ for (; index > 0; --index, ++i) ;
+ return i->first;
+ }
+
+ bool can_create_connection() {
+ return available_connections.size() < max_connections;
+ }
+
+ void generate_connection() {
+ std::lock_guard l{lock};
+ if (!can_create_connection())
+ return ;
+
+ Messenger *server, *client;
+ {
+ boost::uniform_int<> choose(0, available_servers.size() - 1);
+ int index = choose(rng);
+ set<Messenger*>::iterator i = available_servers.begin();
+ for (; index > 0; --index, ++i) ;
+ server = *i;
+ }
+ {
+ boost::uniform_int<> choose(0, available_clients.size() - 1);
+ int index = choose(rng);
+ set<Messenger*>::iterator i = available_clients.begin();
+ for (; index > 0; --index, ++i) ;
+ client = *i;
+ }
+
+ pair<Messenger*, Messenger*> p;
+ {
+ boost::uniform_int<> choose(0, available_servers.size() - 1);
+ if (server->get_default_policy().server) {
+ p = make_pair(client, server);
+ ConnectionRef conn = client->connect_to(server->get_mytype(),
+ server->get_myaddrs());
+ available_connections[conn] = p;
+ } else {
+ ConnectionRef conn = client->connect_to(server->get_mytype(),
+ server->get_myaddrs());
+ p = make_pair(client, server);
+ available_connections[conn] = p;
+ }
+ }
+ }
+
+ void send_message() {
+ std::lock_guard l{lock};
+ ConnectionRef conn = _get_random_connection();
+ boost::uniform_int<> true_false(0, 99);
+ int val = true_false(rng);
+ if (val >= 95) {
+ uuid_d uuid;
+ uuid.generate_random();
+ MCommand *m = new MCommand(uuid);
+ vector<string> cmds;
+ cmds.push_back("command");
+ m->cmd = cmds;
+ m->set_priority(200);
+ conn->send_message(m);
+ } else {
+ boost::uniform_int<> u(0, rand_data.size()-1);
+ dispatcher.send_message_wrap(conn, rand_data[u(rng)]);
+ }
+ }
+
+ void send_large_message(bool inject_network_congestion=false) {
+ std::lock_guard l{lock};
+ ConnectionRef conn = _get_random_connection();
+ uuid_d uuid;
+ uuid.generate_random();
+ MCommand *m = new MCommand(uuid);
+ vector<string> cmds;
+ cmds.push_back("command");
+ // set the random data to make the large message
+ bufferlist bl;
+ string s("abcdefghijklmnopqrstuvwxyz");
+ for (int i = 0; i < 1024*256; i++)
+ bl.append(s);
+ // bl is around 6M
+ m->set_data(bl);
+ m->cmd = cmds;
+ m->set_priority(200);
+ // setup after connection is ready
+ if (inject_network_congestion && conn->is_connected()) {
+ g_ceph_context->_conf.set_val("ms_inject_network_congestion", "100");
+ } else {
+ g_ceph_context->_conf.set_val("ms_inject_network_congestion", "0");
+ }
+ conn->send_message(m);
+ }
+
+ void drop_connection() {
+ std::lock_guard l{lock};
+ if (available_connections.size() < 10)
+ return;
+ ConnectionRef conn = _get_random_connection();
+ dispatcher.clear_pending(conn);
+ conn->mark_down();
+ if (!client_policy.server &&
+ !client_policy.lossy &&
+ client_policy.standby) {
+ // it's a lossless policy, so we need to mark down each side
+ pair<Messenger*, Messenger*> &p = available_connections[conn];
+ if (!p.first->get_default_policy().server && !p.second->get_default_policy().server) {
+ ASSERT_EQ(conn->get_messenger(), p.first);
+ ConnectionRef peer = p.second->connect_to(p.first->get_mytype(),
+ p.first->get_myaddrs());
+ peer->mark_down();
+ dispatcher.clear_pending(peer);
+ available_connections.erase(peer);
+ }
+ }
+ ASSERT_EQ(available_connections.erase(conn), 1U);
+ }
+
+ void print_internal_state(bool detail=false) {
+ std::lock_guard l{lock};
+ lderr(g_ceph_context) << "available_connections: " << available_connections.size()
+ << " inflight messages: " << dispatcher.get_pending() << dendl;
+ if (detail && !available_connections.empty()) {
+ dispatcher.print();
+ }
+ }
+
+ void wait_for_done() {
+ int64_t tick_us = 1000 * 100; // 100ms
+ int64_t timeout_us = 5 * 60 * 1000 * 1000; // 5 mins
+ int i = 0;
+ while (dispatcher.get_pending()) {
+ usleep(tick_us);
+ timeout_us -= tick_us;
+ if (i++ % 50 == 0)
+ print_internal_state(true);
+ if (timeout_us < 0)
+ ceph_abort_msg(" loop time exceed 5 mins, it looks we stuck into some problems!");
+ }
+ for (set<Messenger*>::iterator it = available_servers.begin();
+ it != available_servers.end(); ++it) {
+ (*it)->shutdown();
+ (*it)->wait();
+ ASSERT_EQ((*it)->get_dispatch_queue_len(), 0);
+ delete (*it);
+ }
+ available_servers.clear();
+
+ for (set<Messenger*>::iterator it = available_clients.begin();
+ it != available_clients.end(); ++it) {
+ (*it)->shutdown();
+ (*it)->wait();
+ ASSERT_EQ((*it)->get_dispatch_queue_len(), 0);
+ delete (*it);
+ }
+ available_clients.clear();
+ }
+
+ void handle_reset(Connection *con) {
+ std::lock_guard l{lock};
+ available_connections.erase(con);
+ dispatcher.clear_pending(con);
+ }
+};
+
+bool SyntheticDispatcher::ms_handle_reset(Connection *con) {
+ workload->handle_reset(con);
+ return true;
+}
+
+TEST_P(MessengerTest, SyntheticStressTest) {
+ SyntheticWorkload test_msg(8, 32, GetParam(), 100,
+ Messenger::Policy::stateful_server(0),
+ Messenger::Policy::lossless_client(0));
+ for (int i = 0; i < 100; ++i) {
+ if (!(i % 10)) lderr(g_ceph_context) << "seeding connection " << i << dendl;
+ test_msg.generate_connection();
+ }
+ gen_type rng(time(NULL));
+ for (int i = 0; i < 5000; ++i) {
+ if (!(i % 10)) {
+ lderr(g_ceph_context) << "Op " << i << ": " << dendl;
+ test_msg.print_internal_state();
+ }
+ boost::uniform_int<> true_false(0, 99);
+ int val = true_false(rng);
+ if (val > 90) {
+ test_msg.generate_connection();
+ } else if (val > 80) {
+ test_msg.drop_connection();
+ } else if (val > 10) {
+ test_msg.send_message();
+ } else {
+ usleep(rand() % 1000 + 500);
+ }
+ }
+ test_msg.wait_for_done();
+}
+
+TEST_P(MessengerTest, SyntheticStressTest1) {
+ SyntheticWorkload test_msg(16, 32, GetParam(), 100,
+ Messenger::Policy::lossless_peer_reuse(0),
+ Messenger::Policy::lossless_peer_reuse(0));
+ for (int i = 0; i < 10; ++i) {
+ if (!(i % 10)) lderr(g_ceph_context) << "seeding connection " << i << dendl;
+ test_msg.generate_connection();
+ }
+ gen_type rng(time(NULL));
+ for (int i = 0; i < 10000; ++i) {
+ if (!(i % 10)) {
+ lderr(g_ceph_context) << "Op " << i << ": " << dendl;
+ test_msg.print_internal_state();
+ }
+ boost::uniform_int<> true_false(0, 99);
+ int val = true_false(rng);
+ if (val > 80) {
+ test_msg.generate_connection();
+ } else if (val > 60) {
+ test_msg.drop_connection();
+ } else if (val > 10) {
+ test_msg.send_message();
+ } else {
+ usleep(rand() % 1000 + 500);
+ }
+ }
+ test_msg.wait_for_done();
+}
+
+
+TEST_P(MessengerTest, SyntheticInjectTest) {
+ uint64_t dispatch_throttle_bytes = g_ceph_context->_conf->ms_dispatch_throttle_bytes;
+ g_ceph_context->_conf.set_val("ms_inject_socket_failures", "30");
+ g_ceph_context->_conf.set_val("ms_inject_internal_delays", "0.1");
+ g_ceph_context->_conf.set_val("ms_dispatch_throttle_bytes", "16777216");
+ SyntheticWorkload test_msg(8, 32, GetParam(), 100,
+ Messenger::Policy::stateful_server(0),
+ Messenger::Policy::lossless_client(0));
+ for (int i = 0; i < 100; ++i) {
+ if (!(i % 10)) lderr(g_ceph_context) << "seeding connection " << i << dendl;
+ test_msg.generate_connection();
+ }
+ gen_type rng(time(NULL));
+ for (int i = 0; i < 1000; ++i) {
+ if (!(i % 10)) {
+ lderr(g_ceph_context) << "Op " << i << ": " << dendl;
+ test_msg.print_internal_state();
+ }
+ boost::uniform_int<> true_false(0, 99);
+ int val = true_false(rng);
+ if (val > 90) {
+ test_msg.generate_connection();
+ } else if (val > 80) {
+ test_msg.drop_connection();
+ } else if (val > 10) {
+ test_msg.send_message();
+ } else {
+ usleep(rand() % 500 + 100);
+ }
+ }
+ test_msg.wait_for_done();
+ g_ceph_context->_conf.set_val("ms_inject_socket_failures", "0");
+ g_ceph_context->_conf.set_val("ms_inject_internal_delays", "0");
+ g_ceph_context->_conf.set_val(
+ "ms_dispatch_throttle_bytes", std::to_string(dispatch_throttle_bytes));
+}
+
+TEST_P(MessengerTest, SyntheticInjectTest2) {
+ g_ceph_context->_conf.set_val("ms_inject_socket_failures", "30");
+ g_ceph_context->_conf.set_val("ms_inject_internal_delays", "0.1");
+ SyntheticWorkload test_msg(8, 16, GetParam(), 100,
+ Messenger::Policy::lossless_peer_reuse(0),
+ Messenger::Policy::lossless_peer_reuse(0));
+ for (int i = 0; i < 100; ++i) {
+ if (!(i % 10)) lderr(g_ceph_context) << "seeding connection " << i << dendl;
+ test_msg.generate_connection();
+ }
+ gen_type rng(time(NULL));
+ for (int i = 0; i < 1000; ++i) {
+ if (!(i % 10)) {
+ lderr(g_ceph_context) << "Op " << i << ": " << dendl;
+ test_msg.print_internal_state();
+ }
+ boost::uniform_int<> true_false(0, 99);
+ int val = true_false(rng);
+ if (val > 90) {
+ test_msg.generate_connection();
+ } else if (val > 80) {
+ test_msg.drop_connection();
+ } else if (val > 10) {
+ test_msg.send_message();
+ } else {
+ usleep(rand() % 500 + 100);
+ }
+ }
+ test_msg.wait_for_done();
+ g_ceph_context->_conf.set_val("ms_inject_socket_failures", "0");
+ g_ceph_context->_conf.set_val("ms_inject_internal_delays", "0");
+}
+
+TEST_P(MessengerTest, SyntheticInjectTest3) {
+ g_ceph_context->_conf.set_val("ms_inject_socket_failures", "600");
+ g_ceph_context->_conf.set_val("ms_inject_internal_delays", "0.1");
+ SyntheticWorkload test_msg(8, 16, GetParam(), 100,
+ Messenger::Policy::stateless_server(0),
+ Messenger::Policy::lossy_client(0));
+ for (int i = 0; i < 100; ++i) {
+ if (!(i % 10)) lderr(g_ceph_context) << "seeding connection " << i << dendl;
+ test_msg.generate_connection();
+ }
+ gen_type rng(time(NULL));
+ for (int i = 0; i < 1000; ++i) {
+ if (!(i % 10)) {
+ lderr(g_ceph_context) << "Op " << i << ": " << dendl;
+ test_msg.print_internal_state();
+ }
+ boost::uniform_int<> true_false(0, 99);
+ int val = true_false(rng);
+ if (val > 90) {
+ test_msg.generate_connection();
+ } else if (val > 80) {
+ test_msg.drop_connection();
+ } else if (val > 10) {
+ test_msg.send_message();
+ } else {
+ usleep(rand() % 500 + 100);
+ }
+ }
+ test_msg.wait_for_done();
+ g_ceph_context->_conf.set_val("ms_inject_socket_failures", "0");
+ g_ceph_context->_conf.set_val("ms_inject_internal_delays", "0");
+}
+
+
+TEST_P(MessengerTest, SyntheticInjectTest4) {
+ g_ceph_context->_conf.set_val("ms_inject_socket_failures", "30");
+ g_ceph_context->_conf.set_val("ms_inject_internal_delays", "0.1");
+ g_ceph_context->_conf.set_val("ms_inject_delay_probability", "1");
+ g_ceph_context->_conf.set_val("ms_inject_delay_type", "client osd");
+ g_ceph_context->_conf.set_val("ms_inject_delay_max", "5");
+ SyntheticWorkload test_msg(16, 32, GetParam(), 100,
+ Messenger::Policy::lossless_peer(0),
+ Messenger::Policy::lossless_peer(0));
+ for (int i = 0; i < 100; ++i) {
+ if (!(i % 10)) lderr(g_ceph_context) << "seeding connection " << i << dendl;
+ test_msg.generate_connection();
+ }
+ gen_type rng(time(NULL));
+ for (int i = 0; i < 1000; ++i) {
+ if (!(i % 10)) {
+ lderr(g_ceph_context) << "Op " << i << ": " << dendl;
+ test_msg.print_internal_state();
+ }
+ boost::uniform_int<> true_false(0, 99);
+ int val = true_false(rng);
+ if (val > 95) {
+ test_msg.generate_connection();
+ } else if (val > 80) {
+ // test_msg.drop_connection();
+ } else if (val > 10) {
+ test_msg.send_message();
+ } else {
+ usleep(rand() % 500 + 100);
+ }
+ }
+ test_msg.wait_for_done();
+ g_ceph_context->_conf.set_val("ms_inject_socket_failures", "0");
+ g_ceph_context->_conf.set_val("ms_inject_internal_delays", "0");
+ g_ceph_context->_conf.set_val("ms_inject_delay_probability", "0");
+ g_ceph_context->_conf.set_val("ms_inject_delay_type", "");
+ g_ceph_context->_conf.set_val("ms_inject_delay_max", "0");
+}
+
+// This is test for network block, means ::send return EAGAIN
+TEST_P(MessengerTest, SyntheticInjectTest5) {
+ SyntheticWorkload test_msg(1, 8, GetParam(), 100,
+ Messenger::Policy::stateful_server(0),
+ Messenger::Policy::lossless_client(0),
+ 64, 2);
+ bool simulate_network_congestion = true;
+ for (int i = 0; i < 2; ++i)
+ test_msg.generate_connection();
+ for (int i = 0; i < 5000; ++i) {
+ if (!(i % 10)) {
+ ldout(g_ceph_context, 0) << "Op " << i << ": " << dendl;
+ test_msg.print_internal_state();
+ }
+ if (i < 1600) {
+ // means that we would stuck 1600 * 6M (9.6G) around with 2 connections
+ test_msg.send_large_message(simulate_network_congestion);
+ } else {
+ simulate_network_congestion = false;
+ test_msg.send_large_message(simulate_network_congestion);
+ }
+ }
+ test_msg.wait_for_done();
+}
+
+
+class MarkdownDispatcher : public Dispatcher {
+ ceph::mutex lock = ceph::make_mutex("MarkdownDispatcher::lock");
+ set<ConnectionRef> conns;
+ bool last_mark;
+ public:
+ std::atomic<uint64_t> count = { 0 };
+ explicit MarkdownDispatcher(bool s): Dispatcher(g_ceph_context),
+ last_mark(false) {
+ }
+ bool ms_can_fast_dispatch_any() const override { return false; }
+ bool ms_can_fast_dispatch(const Message *m) const override {
+ switch (m->get_type()) {
+ case CEPH_MSG_PING:
+ return true;
+ default:
+ return false;
+ }
+ }
+
+ void ms_handle_fast_connect(Connection *con) override {
+ lderr(g_ceph_context) << __func__ << " " << con << dendl;
+ std::lock_guard l{lock};
+ conns.insert(con);
+ }
+ void ms_handle_fast_accept(Connection *con) override {
+ std::lock_guard l{lock};
+ conns.insert(con);
+ }
+ bool ms_dispatch(Message *m) override {
+ lderr(g_ceph_context) << __func__ << " conn: " << m->get_connection() << dendl;
+ std::lock_guard l{lock};
+ count++;
+ conns.insert(m->get_connection());
+ if (conns.size() < 2 && !last_mark) {
+ m->put();
+ return true;
+ }
+
+ last_mark = true;
+ usleep(rand() % 500);
+ for (set<ConnectionRef>::iterator it = conns.begin(); it != conns.end(); ++it) {
+ if ((*it) != m->get_connection().get()) {
+ (*it)->mark_down();
+ conns.erase(it);
+ break;
+ }
+ }
+ if (conns.empty())
+ last_mark = false;
+ m->put();
+ return true;
+ }
+ bool ms_handle_reset(Connection *con) override {
+ lderr(g_ceph_context) << __func__ << " " << con << dendl;
+ std::lock_guard l{lock};
+ conns.erase(con);
+ usleep(rand() % 500);
+ return true;
+ }
+ void ms_handle_remote_reset(Connection *con) override {
+ std::lock_guard l{lock};
+ conns.erase(con);
+ lderr(g_ceph_context) << __func__ << " " << con << dendl;
+ }
+ bool ms_handle_refused(Connection *con) override {
+ return false;
+ }
+ void ms_fast_dispatch(Message *m) override {
+ ceph_abort();
+ }
+ int ms_handle_fast_authentication(Connection *con) override {
+ return 1;
+ }
+};
+
+
+// Markdown with external lock
+TEST_P(MessengerTest, MarkdownTest) {
+ Messenger *server_msgr2 = Messenger::create(g_ceph_context, string(GetParam()), entity_name_t::OSD(0), "server", getpid());
+ MarkdownDispatcher cli_dispatcher(false), srv_dispatcher(true);
+ DummyAuthClientServer dummy_auth(g_ceph_context);
+ dummy_auth.auth_registry.refresh_config();
+ entity_addr_t bind_addr;
+ bind_addr.parse("v2:127.0.0.1:16800");
+ server_msgr->bind(bind_addr);
+ server_msgr->add_dispatcher_head(&srv_dispatcher);
+ server_msgr->set_auth_client(&dummy_auth);
+ server_msgr->set_auth_server(&dummy_auth);
+ server_msgr->start();
+ bind_addr.parse("v2:127.0.0.1:16801");
+ server_msgr2->bind(bind_addr);
+ server_msgr2->add_dispatcher_head(&srv_dispatcher);
+ server_msgr2->set_auth_client(&dummy_auth);
+ server_msgr2->set_auth_server(&dummy_auth);
+ server_msgr2->start();
+
+ client_msgr->add_dispatcher_head(&cli_dispatcher);
+ client_msgr->set_auth_client(&dummy_auth);
+ client_msgr->set_auth_server(&dummy_auth);
+ client_msgr->start();
+
+ int i = 1000;
+ uint64_t last = 0;
+ bool equal = false;
+ uint64_t equal_count = 0;
+ while (i--) {
+ ConnectionRef conn1 = client_msgr->connect_to(server_msgr->get_mytype(),
+ server_msgr->get_myaddrs());
+ ConnectionRef conn2 = client_msgr->connect_to(server_msgr2->get_mytype(),
+ server_msgr2->get_myaddrs());
+ MPing *m = new MPing();
+ ASSERT_EQ(conn1->send_message(m), 0);
+ m = new MPing();
+ ASSERT_EQ(conn2->send_message(m), 0);
+ CHECK_AND_WAIT_TRUE(srv_dispatcher.count > last + 1);
+ if (srv_dispatcher.count == last) {
+ lderr(g_ceph_context) << __func__ << " last is " << last << dendl;
+ equal = true;
+ equal_count++;
+ } else {
+ equal = false;
+ equal_count = 0;
+ }
+ last = srv_dispatcher.count;
+ if (equal_count)
+ usleep(1000*500);
+ ASSERT_FALSE(equal && equal_count > 3);
+ }
+ server_msgr->shutdown();
+ client_msgr->shutdown();
+ server_msgr2->shutdown();
+ server_msgr->wait();
+ client_msgr->wait();
+ server_msgr2->wait();
+ delete server_msgr2;
+}
+
+INSTANTIATE_TEST_SUITE_P(
+ Messenger,
+ MessengerTest,
+ ::testing::Values(
+ "async+posix"
+ )
+);
+
+int main(int argc, char **argv) {
+ auto args = argv_to_vec(argc, argv);
+
+ auto cct = global_init(NULL, args, CEPH_ENTITY_TYPE_CLIENT,
+ CODE_ENVIRONMENT_UTILITY,
+ CINIT_FLAG_NO_DEFAULT_CONFIG_FILE);
+ g_ceph_context->_conf.set_val("auth_cluster_required", "none");
+ g_ceph_context->_conf.set_val("auth_service_required", "none");
+ g_ceph_context->_conf.set_val("auth_client_required", "none");
+ g_ceph_context->_conf.set_val("keyring", "/dev/null");
+ g_ceph_context->_conf.set_val("enable_experimental_unrecoverable_data_corrupting_features", "ms-type-async");
+ g_ceph_context->_conf.set_val("ms_die_on_bad_msg", "true");
+ g_ceph_context->_conf.set_val("ms_die_on_old_message", "true");
+ g_ceph_context->_conf.set_val("ms_max_backoff", "1");
+ common_init_finish(g_ceph_context);
+
+ ::testing::InitGoogleTest(&argc, argv);
+ return RUN_ALL_TESTS();
+}
+
+/*
+ * Local Variables:
+ * compile-command: "cd ../.. ; make -j4 ceph_test_msgr && valgrind --tool=memcheck ./ceph_test_msgr"
+ * End:
+ */