func Test_ExecuteStatement(t *testing.T) {
	numOfNodes := 3

	mock := newMockExecutor()
	// Expect each statement twice because we have 3 nodes, 2 of which
	// are remote and should be executed on.
	mock.expect("DROP RETENTION POLICY rp0 on foo")
	mock.expect("DROP RETENTION POLICY rp0 on foo")
	mock.expect("DROP DATABASE foo")
	mock.expect("DROP DATABASE foo")

	e := NewMetaExecutor()
	e.MetaClient = newMockMetaClient(numOfNodes)
	e.Node = influxdb.NewNode("/tmp/node")
	e.Node.ID = 1
	// Replace MetaExecutor's nodeExecutor with our mock.
	e.nodeExecutor = mock

	if err := e.ExecuteStatement(mustParseStatement("DROP RETENTION POLICY rp0 on foo"), "foo"); err != nil {
		t.Fatal(err)
	}
	if err := e.ExecuteStatement(mustParseStatement("DROP DATABASE foo"), "foo"); err != nil {
		t.Fatal(err)
	}

	if err := mock.done(); err != nil {
		t.Fatal(err)
	}
}
Exemple #2
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func newService(cfg *meta.Config) *testService {
	// Open shared TCP connection.
	ln, err := net.Listen("tcp", cfg.BindAddress)
	if err != nil {
		panic(err)
	}

	// Multiplex listener.
	mux := tcp.NewMux()

	if err != nil {
		panic(err)
	}
	s := meta.NewService(cfg)
	s.Node = influxdb.NewNode(cfg.Dir)
	s.RaftListener = mux.Listen(meta.MuxHeader)

	go mux.Serve(ln)

	return &testService{Service: s, ln: ln}
}
Exemple #3
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// NewServer returns a new instance of Server built from a config.
func NewServer(c *Config, buildInfo *BuildInfo) (*Server, error) {
	// We need to ensure that a meta directory always exists even if
	// we don't start the meta store.  node.json is always stored under
	// the meta directory.
	if err := os.MkdirAll(c.Meta.Dir, 0777); err != nil {
		return nil, fmt.Errorf("mkdir all: %s", err)
	}

	// 0.10-rc1 and prior would sometimes put the node.json at the root
	// dir which breaks backup/restore and restarting nodes.  This moves
	// the file from the root so it's always under the meta dir.
	oldPath := filepath.Join(filepath.Dir(c.Meta.Dir), "node.json")
	newPath := filepath.Join(c.Meta.Dir, "node.json")

	if _, err := os.Stat(oldPath); err == nil {
		if err := os.Rename(oldPath, newPath); err != nil {
			return nil, err
		}
	}

	nodeAddr, err := meta.DefaultHost(DefaultHostname, c.Meta.HTTPBindAddress)
	if err != nil {
		return nil, err
	}

	// load the node information
	metaAddresses := []string{nodeAddr}
	if !c.Meta.Enabled {
		metaAddresses = c.Meta.JoinPeers
	}

	node, err := influxdb.LoadNode(c.Meta.Dir, metaAddresses)
	if err != nil {
		if !os.IsNotExist(err) {
			return nil, err
		} else {
			node = influxdb.NewNode(c.Meta.Dir, metaAddresses)
		}
	}

	// In 0.10.0 bind-address got moved to the top level. Check
	// The old location to keep things backwards compatible
	bind := c.BindAddress
	if c.Meta.BindAddress != "" {
		bind = c.Meta.BindAddress
	}

	if !c.Data.Enabled && !c.Meta.Enabled {
		return nil, fmt.Errorf("must run as either meta node or data node or both")
	}

	httpBindAddress, err := meta.DefaultHost(DefaultHostname, c.HTTPD.BindAddress)
	if err != nil {
		return nil, err
	}
	tcpBindAddress, err := meta.DefaultHost(DefaultHostname, bind)
	if err != nil {
		return nil, err
	}

	s := &Server{
		buildInfo: *buildInfo,
		err:       make(chan error),
		closing:   make(chan struct{}),

		BindAddress: bind,

		Node: node,

		Monitor: monitor.New(c.Monitor),

		reportingDisabled: c.ReportingDisabled,
		joinPeers:         c.Meta.JoinPeers,
		metaUseTLS:        c.Meta.HTTPSEnabled,

		httpAPIAddr: httpBindAddress,
		httpUseTLS:  c.HTTPD.HTTPSEnabled,
		tcpAddr:     tcpBindAddress,

		config: c,
	}

	if c.Meta.Enabled {
		s.MetaService = meta.NewService(c.Meta)
	}

	if c.Data.Enabled {
		s.TSDBStore = tsdb.NewStore(c.Data.Dir)
		s.TSDBStore.EngineOptions.Config = c.Data

		// Copy TSDB configuration.
		s.TSDBStore.EngineOptions.EngineVersion = c.Data.Engine
		s.TSDBStore.EngineOptions.MaxWALSize = c.Data.MaxWALSize
		s.TSDBStore.EngineOptions.WALFlushInterval = time.Duration(c.Data.WALFlushInterval)
		s.TSDBStore.EngineOptions.WALPartitionFlushDelay = time.Duration(c.Data.WALPartitionFlushDelay)

		// Initialize query executor.
		s.QueryExecutor = tsdb.NewQueryExecutor()
		s.QueryExecutor.Store = s.TSDBStore
		s.QueryExecutor.MonitorStatementExecutor = &monitor.StatementExecutor{Monitor: s.Monitor}
		s.QueryExecutor.QueryLogEnabled = c.Data.QueryLogEnabled

		// Set the shard writer
		s.ShardWriter = cluster.NewShardWriter(time.Duration(c.Cluster.ShardWriterTimeout),
			c.Cluster.MaxRemoteWriteConnections)

		// Create the hinted handoff service
		s.HintedHandoff = hh.NewService(c.HintedHandoff, s.ShardWriter, s.MetaClient)
		s.HintedHandoff.Monitor = s.Monitor

		// Create the Subscriber service
		s.Subscriber = subscriber.NewService(c.Subscriber)

		// Initialize points writer.
		s.PointsWriter = cluster.NewPointsWriter()
		s.PointsWriter.WriteTimeout = time.Duration(c.Cluster.WriteTimeout)
		s.PointsWriter.TSDBStore = s.TSDBStore
		s.PointsWriter.ShardWriter = s.ShardWriter
		s.PointsWriter.HintedHandoff = s.HintedHandoff
		s.PointsWriter.Subscriber = s.Subscriber
		s.PointsWriter.Node = s.Node

		// needed for executing INTO queries.
		s.QueryExecutor.IntoWriter = s.PointsWriter

		// Initialize the monitor
		s.Monitor.Version = s.buildInfo.Version
		s.Monitor.Commit = s.buildInfo.Commit
		s.Monitor.Branch = s.buildInfo.Branch
		s.Monitor.BuildTime = s.buildInfo.Time
		s.Monitor.PointsWriter = s.PointsWriter
	}

	return s, nil
}