Example #1
0
func (s *ManagerTestSuite) TestStartStopManager(t *C) {
	/**
	 * mm is a proxy manager for monitors, so it's always running.
	 * It should implement the service manager interface anyway,
	 * but it doesn't actually start or stop.  Its main work is done
	 * in Handle, starting and stopping monitors (tested later).
	 */
	mrm := mock.NewMrmsMonitor()
	m := mm.NewManager(s.logger, s.factory, s.clock, s.spool, s.im, mrm)
	if m == nil {
		t.Fatal("Make new mm.Manager")
	}

	// It shouldn't have added a tickChan yet.
	if len(s.clock.Added) != 0 {
		t.Error("tickChan not added yet")
	}

	// First the API marshals an mm.Config.
	config := &mm.Config{
		ServiceInstance: proto.ServiceInstance{
			Service:    "mysql",
			InstanceId: 1,
		},
		Collect: 1,
		Report:  60,
		// No monitor-specific config
	}
	err := pct.Basedir.WriteConfig("mm-mysql-1", config)
	t.Assert(err, IsNil)

	// The agent calls mm.Start().
	err = m.Start()
	t.Assert(err, IsNil)

	// There is a monitor so there should be tickers.
	if ok, diff := test.IsDeeply(s.clock.Added, []uint{1}); !ok {
		test.Dump(s.clock.Added)
		t.Errorf("Does not add tickChan, got %#v", diff)
	}

	// Its status should be "Running".
	status := m.Status()
	t.Check(status["mm"], Equals, "Running")

	// Can't start mm twice.
	err = m.Start()
	t.Check(err, Not(Equals), "")

	// Stopping should be idempotent.
	err = m.Stop()
	t.Check(err, IsNil)
	err = m.Stop()
	t.Check(err, IsNil)

	status = m.Status()
	t.Check(status["mm"], Equals, "Stopped")
}
Example #2
0
func (s *TestSuite) SetUpSuite(t *C) {
	if dsn == "" {
		t.Fatal("PCT_TEST_MYSQL_DSN is not set")
	}

	// Get our own connection to MySQL.
	db, err := test.ConnectMySQL(dsn)
	if err != nil {
		t.Fatal(err)
	}
	s.db = db

	s.logChan = make(chan *proto.LogEntry, 10)
	s.logger = pct.NewLogger(s.logChan, "mm-manager-test")
	s.tickChan = make(chan time.Time)
	s.collectionChan = make(chan *mm.Collection, 1)
	s.name = "mm-mysql-db1"
	s.mrm = mock.NewMrmsMonitor()

}
Example #3
0
func (s *ManagerTestSuite) SetUpSuite(t *C) {

	s.nullmysql = mock.NewNullMySQL()
	s.mrmsMonitor = mock.NewMrmsMonitor()

	s.logChan = make(chan *proto.LogEntry, 1000)
	s.logger = pct.NewLogger(s.logChan, "qan-test")

	s.dataChan = make(chan interface{}, 2)
	s.spool = mock.NewSpooler(s.dataChan)

	var err error
	s.tmpDir, err = ioutil.TempDir("/tmp", "agent-test")
	t.Assert(err, IsNil)

	if err := pct.Basedir.Init(s.tmpDir); err != nil {
		t.Fatal(err)
	}
	s.configDir = pct.Basedir.Dir("config")

	s.im = instance.NewRepo(pct.NewLogger(s.logChan, "im-test"), s.configDir, s.api)
	data, err := json.Marshal(&proto.MySQLInstance{
		Hostname: "bm-cloud-db01",
		Alias:    "db01",
		DSN:      "user:pass@tcp/",
	})
	t.Assert(err, IsNil)
	s.im.Add("mysql", 1, data, false)
	s.mysqlInstance = proto.ServiceInstance{Service: "mysql", InstanceId: 1}

	links := map[string]string{
		"agent":     "http://localhost/agent",
		"instances": "http://localhost/instances",
	}
	s.api = mock.NewAPI("http://localhost", "http://localhost", "123", "abc-123-def", links)
}
Example #4
0
func (s *TestSuite) SetUpSuite(t *C) {
	s.mockMrmsMonitor = mock.NewMrmsMonitor()
	s.logChan = make(chan *proto.LogEntry, 1000)
	s.logger = pct.NewLogger(s.logChan, "mrms-test")
}
Example #5
0
func (s *ManagerTestSuite) TestGetConfig(t *C) {
	mrm := mock.NewMrmsMonitor()
	m := mm.NewManager(s.logger, s.factory, s.clock, s.spool, s.im, mrm)
	t.Assert(m, NotNil)
	err := m.Start()
	t.Assert(err, IsNil)

	/**
	 * Start a mock MySQL monitor.
	 */
	mysqlMonitorConfig := &mysql.Config{
		Config: mm.Config{
			ServiceInstance: proto.ServiceInstance{
				Service:    "mysql",
				InstanceId: 1,
			},
			Collect: 1,
			Report:  60,
		},
		Status: map[string]string{
			"threads_connected": "gauge",
			"threads_running":   "gauge",
		},
	}
	mysqlData, err := json.Marshal(mysqlMonitorConfig)
	t.Assert(err, IsNil)
	cmd := &proto.Cmd{
		User:    "******",
		Service: "mm",
		Cmd:     "StartService",
		Data:    mysqlData,
	}
	s.mysqlMonitor.SetConfig(mysqlMonitorConfig)
	reply := m.Handle(cmd)
	t.Assert(reply, NotNil)
	t.Assert(reply.Error, Equals, "")

	/**
	 * Start a mock system monitor.
	 */
	systemMonitorConfig := &system.Config{
		Config: mm.Config{
			ServiceInstance: proto.ServiceInstance{
				Service:    "server",
				InstanceId: 1,
			},
			Collect: 10,
			Report:  60,
		},
	}
	systemData, err := json.Marshal(systemMonitorConfig)
	t.Assert(err, IsNil)
	cmd = &proto.Cmd{
		User:    "******",
		Service: "mm",
		Cmd:     "StartService",
		Data:    systemData,
	}
	s.systemMonitor.SetConfig(systemMonitorConfig)
	reply = m.Handle(cmd)
	t.Assert(reply, NotNil)
	t.Assert(reply.Error, Equals, "")

	/**
	 * GetConfig from mm which should return all monitors' configs.
	 */
	cmd = &proto.Cmd{
		Cmd:     "GetConfig",
		Service: "mm",
	}
	reply = m.Handle(cmd)
	t.Assert(reply, NotNil)
	t.Assert(reply.Error, Equals, "")
	t.Assert(reply.Data, NotNil)
	gotConfig := []proto.AgentConfig{}
	if err := json.Unmarshal(reply.Data, &gotConfig); err != nil {
		t.Fatal(err)
	}
	expectConfig := []proto.AgentConfig{
		{
			InternalService: "mm",
			ExternalService: proto.ServiceInstance{
				Service:    "mysql",
				InstanceId: 1,
			},
			Config:  string(mysqlData),
			Running: true,
		},
		{
			InternalService: "mm",
			ExternalService: proto.ServiceInstance{
				Service:    "server",
				InstanceId: 1,
			},
			Config:  string(systemData),
			Running: true,
		},
	}
	sort.Sort(test.ByInternalService(gotConfig))
	if same, diff := test.IsDeeply(gotConfig, expectConfig); !same {
		test.Dump(gotConfig)
		t.Error(diff)
	}
}
Example #6
0
/**
 * Tests:
 * - starting monitor
 * - stopping monitor
 * - starting monitor again (restarting monitor)
 * - sneaked in:) unknown cmd test
 */
func (s *ManagerTestSuite) TestRestartMonitor(t *C) {
	// Create and start mm, no monitors yet.
	mrm := mock.NewMrmsMonitor()
	m := mm.NewManager(s.logger, s.factory, s.clock, s.spool, s.im, mrm)
	t.Assert(m, NotNil)
	err := m.Start()
	t.Assert(err, IsNil)

	// Start a monitor by sending StartService + monitor config.
	// This is the config in test/mm/config/mm-mysql-1.conf.
	mmConfig := &mysql.Config{
		Config: mm.Config{
			ServiceInstance: proto.ServiceInstance{
				Service:    "mysql",
				InstanceId: 1,
			},
			Collect: 1,
			Report:  60,
		},
		Status: map[string]string{
			"threads_connected": "gauge",
			"threads_running":   "gauge",
		},
	}
	mmConfigData, err := json.Marshal(mmConfig)
	t.Assert(err, IsNil)

	// If this were a real monitor, it would decode and set its own config.
	// The mock monitor doesn't have any real config type, so we set it manually.
	s.mysqlMonitor.SetConfig(mmConfig)

	// The agent calls mm.Handle() with the cmd (for logging and status) and the config data.
	cmd := &proto.Cmd{
		User:    "******",
		Service: "mm",
		Cmd:     "StartService",
		Data:    mmConfigData,
	}
	reply := m.Handle(cmd)
	t.Assert(reply, NotNil)
	t.Check(reply.Error, Equals, "")

	// The monitor should be running.  The mock monitor returns "Running" if
	// Start() has been called; else it returns "Stopped".
	status := m.Status()
	t.Check(status["monitor"], Equals, "Running")

	// There should be a 1s collect ticker for the monitor.
	if ok, diff := test.IsDeeply(s.clock.Added, []uint{1}); !ok {
		t.Errorf("Make 1s ticker for collect interval\n%s", diff)
	}

	// After starting a monitor, mm should write its config to the dir
	// it learned when mm.LoadConfig() was called.  Next time agent starts,
	// it will have mm start the monitor with this config.
	data, err := ioutil.ReadFile(s.configDir + "/mm-mysql-1.conf")
	t.Check(err, IsNil)
	gotConfig := &mysql.Config{}
	err = json.Unmarshal(data, gotConfig)
	t.Check(err, IsNil)
	if same, diff := test.IsDeeply(gotConfig, mmConfig); !same {
		test.Dump(gotConfig)
		t.Error(diff)
	}

	/**
	 * Stop the monitor.
	 */

	cmd = &proto.Cmd{
		User:    "******",
		Service: "mm",
		Cmd:     "StopService",
		Data:    mmConfigData,
	}

	// Handles StopService without error.
	reply = m.Handle(cmd)
	t.Assert(reply, NotNil)
	t.Check(reply.Error, Equals, "")

	// Stop a monitor removes it from the managers list of monitors.
	// So it's no longer present in a status request.
	status = m.Status()
	t.Check(status["monitor"], Equals, "")

	// After stopping the monitor, the manager should remove its tickChan.
	if len(s.clock.Removed) != 1 {
		t.Error("Remove's monitor's tickChan from clock")
	}

	// After stopping a monitor, mm should remove its config file so agent
	// doesn't start it on restart.
	file := s.configDir + "/mm-mysql-1.conf"
	if pct.FileExists(file) {
		t.Error("Stopping monitor removes its config; ", file, " exists")
	}

	/**
	 * Start the monitor again (restarting monitor).
	 */
	cmd = &proto.Cmd{
		User:    "******",
		Service: "mm",
		Cmd:     "StartService",
		Data:    mmConfigData,
	}

	// If this were a real monitor, it would decode and set its own config.
	// The mock monitor doesn't have any real config type, so we set it manually.
	s.mysqlMonitor.SetConfig(mmConfig)

	// The agent calls mm.Handle() with the cmd (for logging and status) and the config data.
	reply = m.Handle(cmd)
	t.Assert(reply, NotNil)
	t.Check(reply.Error, Equals, "")

	// The monitor should be running.  The mock monitor returns "Running" if
	// Start() has been called; else it returns "Stopped".
	status = m.Status()
	t.Check(status["monitor"], Equals, "Running")

	// There should be a 1s collect ticker for the monitor.
	// (Actually two in s.clock.Added, as this is mock and we started monitor twice)
	if ok, diff := test.IsDeeply(s.clock.Added, []uint{1, 1}); !ok {
		t.Errorf("Make 1s ticker for collect interval\n%s", diff)
	}

	// After starting a monitor, mm should write its config to the dir
	// it learned when mm.LoadConfig() was called.  Next time agent starts,
	// it will have mm start the monitor with this config.
	data, err = ioutil.ReadFile(s.configDir + "/mm-mysql-1.conf")
	t.Check(err, IsNil)
	gotConfig = &mysql.Config{}
	err = json.Unmarshal(data, gotConfig)
	t.Check(err, IsNil)
	if same, diff := test.IsDeeply(gotConfig, mmConfig); !same {
		t.Logf("%+v", gotConfig)
		t.Error(diff)
	}

	/**
	 * While we're all setup and working, let's sneak in an unknown cmd test.
	 */

	cmd = &proto.Cmd{
		User:    "******",
		Service: "mm",
		Cmd:     "Pontificate",
		Data:    mmConfigData,
	}

	// Unknown cmd causes error.
	reply = m.Handle(cmd)
	t.Assert(reply, NotNil)
	t.Check(reply.Error, Not(Equals), "")
}