Example #1
0
// DbServingGraph returns the ServingGraph for the given cell.
func DbServingGraph(ctx context.Context, ts topo.Server, cell string) (servingGraph *ServingGraph) {
	servingGraph = &ServingGraph{
		Cell:      cell,
		Keyspaces: make(map[string]*KeyspaceNodes),
	}
	rec := concurrency.AllErrorRecorder{}

	keyspaces, err := ts.GetSrvKeyspaceNames(ctx, cell)
	if err != nil {
		servingGraph.Errors = append(servingGraph.Errors, fmt.Sprintf("GetSrvKeyspaceNames failed: %v", err))
		return
	}
	wg := sync.WaitGroup{}
	servingTypes := []topo.TabletType{topo.TYPE_MASTER, topo.TYPE_REPLICA, topo.TYPE_RDONLY}
	for _, keyspace := range keyspaces {
		kn := newKeyspaceNodes()
		servingGraph.Keyspaces[keyspace] = kn
		wg.Add(1)
		go func(keyspace string, kn *KeyspaceNodes) {
			defer wg.Done()

			ks, err := ts.GetSrvKeyspace(ctx, cell, keyspace)
			if err != nil {
				rec.RecordError(fmt.Errorf("GetSrvKeyspace(%v, %v) failed: %v", cell, keyspace, err))
				return
			}
			kn.ServedFrom = ks.ServedFrom

			displayedShards := make(map[string]bool)
			for _, partitionTabletType := range servingTypes {
				kp, ok := ks.Partitions[partitionTabletType]
				if !ok {
					continue
				}
				for _, srvShard := range kp.ShardReferences {
					shard := srvShard.Name
					if displayedShards[shard] {
						continue
					}
					displayedShards[shard] = true

					sn := &ShardNodes{
						Name:        shard,
						TabletNodes: make(TabletNodesByType),
					}
					kn.ShardNodes = append(kn.ShardNodes, sn)
					wg.Add(1)
					go func(shard string, sn *ShardNodes) {
						defer wg.Done()
						tabletTypes, err := ts.GetSrvTabletTypesPerShard(ctx, cell, keyspace, shard)
						if err != nil {
							rec.RecordError(fmt.Errorf("GetSrvTabletTypesPerShard(%v, %v, %v) failed: %v", cell, keyspace, shard, err))
							return
						}
						for _, tabletType := range tabletTypes {
							endPoints, _, err := ts.GetEndPoints(ctx, cell, keyspace, shard, tabletType)
							if err != nil {
								rec.RecordError(fmt.Errorf("GetEndPoints(%v, %v, %v, %v) failed: %v", cell, keyspace, shard, tabletType, err))
								continue
							}
							for _, endPoint := range endPoints.Entries {
								sn.TabletNodes[tabletType] = append(sn.TabletNodes[tabletType], newTabletNodeFromEndPoint(endPoint, cell))
							}
						}
					}(shard, sn)
				}
			}
		}(keyspace, kn)
	}
	wg.Wait()
	servingGraph.Errors = rec.ErrorStrings()
	return
}
Example #2
0
// DbServingGraph returns the ServingGraph for the given cell.
func DbServingGraph(ctx context.Context, ts topo.Server, cell string) (servingGraph *ServingGraph) {
	servingGraph = &ServingGraph{
		Cell:      cell,
		Keyspaces: make(map[string]*KeyspaceNodes),
	}
	rec := concurrency.AllErrorRecorder{}

	keyspaces, err := ts.GetSrvKeyspaceNames(ctx, cell)
	if err != nil {
		servingGraph.Errors = append(servingGraph.Errors, fmt.Sprintf("GetSrvKeyspaceNames failed: %v", err))
		return
	}
	wg := sync.WaitGroup{}
	servingTypes := []pb.TabletType{pb.TabletType_MASTER, pb.TabletType_REPLICA, pb.TabletType_RDONLY}
	for _, keyspace := range keyspaces {
		kn := newKeyspaceNodes()
		servingGraph.Keyspaces[keyspace] = kn
		wg.Add(1)
		go func(keyspace string, kn *KeyspaceNodes) {
			defer wg.Done()

			ks, err := ts.GetSrvKeyspace(ctx, cell, keyspace)
			if err != nil {
				rec.RecordError(fmt.Errorf("GetSrvKeyspace(%v, %v) failed: %v", cell, keyspace, err))
				return
			}
			for _, sf := range ks.ServedFrom {
				kn.ServedFrom[strings.ToLower(sf.TabletType.String())] = sf.Keyspace
			}

			displayedShards := make(map[string]bool)
			for _, partitionTabletType := range servingTypes {
				kp := topoproto.SrvKeyspaceGetPartition(ks, partitionTabletType)
				if kp == nil {
					continue
				}
				for _, srvShard := range kp.ShardReferences {
					shard := srvShard.Name
					if displayedShards[shard] {
						continue
					}
					displayedShards[shard] = true

					sn := &ShardNodes{
						Name: shard,
					}
					kn.ShardNodes = append(kn.ShardNodes, sn)
					wg.Add(1)
					go func(shard string, sn *ShardNodes) {
						defer wg.Done()
						tabletTypes, err := ts.GetSrvTabletTypesPerShard(ctx, cell, keyspace, shard)
						if err != nil {
							rec.RecordError(fmt.Errorf("GetSrvTabletTypesPerShard(%v, %v, %v) failed: %v", cell, keyspace, shard, err))
							return
						}
						for _, tabletType := range tabletTypes {
							endPoints, _, err := ts.GetEndPoints(ctx, cell, keyspace, shard, tabletType)
							if err != nil {
								rec.RecordError(fmt.Errorf("GetEndPoints(%v, %v, %v, %v) failed: %v", cell, keyspace, shard, tabletType, err))
								continue
							}
							for _, endPoint := range endPoints.Entries {
								var tabletNode *TabletNodesByType
								for _, t := range sn.TabletNodes {
									if t.TabletType == tabletType {
										tabletNode = t
										break
									}
								}
								if tabletNode == nil {
									tabletNode = &TabletNodesByType{
										TabletType: tabletType,
									}
									sn.TabletNodes = append(sn.TabletNodes, tabletNode)
								}
								tabletNode.Nodes = append(tabletNode.Nodes, newTabletNodeFromEndPoint(endPoint, cell))
							}
						}
					}(shard, sn)
				}
			}
		}(keyspace, kn)
	}
	wg.Wait()
	servingGraph.Errors = rec.ErrorStrings()
	return
}
Example #3
0
func CheckServingGraph(t *testing.T, ts topo.Server) {
	cell := getLocalCell(t, ts)

	// test individual cell/keyspace/shard/type entries
	if _, err := ts.GetSrvTabletTypesPerShard(cell, "test_keyspace", "-10"); err != topo.ErrNoNode {
		t.Errorf("GetSrvTabletTypesPerShard(invalid): %v", err)
	}
	if _, err := ts.GetEndPoints(cell, "test_keyspace", "-10", topo.TYPE_MASTER); err != topo.ErrNoNode {
		t.Errorf("GetEndPoints(invalid): %v", err)
	}

	endPoints := topo.EndPoints{
		Entries: []topo.EndPoint{
			topo.EndPoint{
				Uid:          1,
				Host:         "host1",
				NamedPortMap: map[string]int{"_vt": 1234, "_mysql": 1235, "_vts": 1236},
			},
		},
	}

	if err := ts.UpdateEndPoints(cell, "test_keyspace", "-10", topo.TYPE_MASTER, &endPoints); err != nil {
		t.Errorf("UpdateEndPoints(master): %v", err)
	}
	if types, err := ts.GetSrvTabletTypesPerShard(cell, "test_keyspace", "-10"); err != nil || len(types) != 1 || types[0] != topo.TYPE_MASTER {
		t.Errorf("GetSrvTabletTypesPerShard(1): %v %v", err, types)
	}

	addrs, err := ts.GetEndPoints(cell, "test_keyspace", "-10", topo.TYPE_MASTER)
	if err != nil {
		t.Errorf("GetEndPoints: %v", err)
	}
	if len(addrs.Entries) != 1 || addrs.Entries[0].Uid != 1 {
		t.Errorf("GetEndPoints(1): %v", addrs)
	}
	if pm := addrs.Entries[0].NamedPortMap; pm["_vt"] != 1234 || pm["_mysql"] != 1235 || pm["_vts"] != 1236 {
		t.Errorf("GetSrcTabletType(1).NamedPortmap: want %v, got %v", endPoints.Entries[0].NamedPortMap, pm)
	}

	if err := ts.UpdateTabletEndpoint(cell, "test_keyspace", "-10", topo.TYPE_REPLICA, &topo.EndPoint{Uid: 2, Host: "host2"}); err != nil {
		t.Errorf("UpdateTabletEndpoint(invalid): %v", err)
	}
	if err := ts.UpdateTabletEndpoint(cell, "test_keyspace", "-10", topo.TYPE_MASTER, &topo.EndPoint{Uid: 1, Host: "host2"}); err != nil {
		t.Errorf("UpdateTabletEndpoint(master): %v", err)
	}
	if addrs, err := ts.GetEndPoints(cell, "test_keyspace", "-10", topo.TYPE_MASTER); err != nil || len(addrs.Entries) != 1 || addrs.Entries[0].Uid != 1 {
		t.Errorf("GetEndPoints(2): %v %v", err, addrs)
	}
	if err := ts.UpdateTabletEndpoint(cell, "test_keyspace", "-10", topo.TYPE_MASTER, &topo.EndPoint{Uid: 3, Host: "host3"}); err != nil {
		t.Errorf("UpdateTabletEndpoint(master): %v", err)
	}
	if addrs, err := ts.GetEndPoints(cell, "test_keyspace", "-10", topo.TYPE_MASTER); err != nil || len(addrs.Entries) != 2 {
		t.Errorf("GetEndPoints(2): %v %v", err, addrs)
	}

	if err := ts.DeleteSrvTabletType(cell, "test_keyspace", "-10", topo.TYPE_REPLICA); err != topo.ErrNoNode {
		t.Errorf("DeleteSrvTabletType(unknown): %v", err)
	}
	if err := ts.DeleteSrvTabletType(cell, "test_keyspace", "-10", topo.TYPE_MASTER); err != nil {
		t.Errorf("DeleteSrvTabletType(master): %v", err)
	}

	// test cell/keyspace/shard entries (SrvShard)
	srvShard := topo.SrvShard{
		ServedTypes: []topo.TabletType{topo.TYPE_MASTER},
		TabletTypes: []topo.TabletType{topo.TYPE_REPLICA, topo.TYPE_RDONLY},
	}
	if err := ts.UpdateSrvShard(cell, "test_keyspace", "-10", &srvShard); err != nil {
		t.Errorf("UpdateSrvShard(1): %v", err)
	}
	if _, err := ts.GetSrvShard(cell, "test_keyspace", "666"); err != topo.ErrNoNode {
		t.Errorf("GetSrvShard(invalid): %v", err)
	}
	if s, err := ts.GetSrvShard(cell, "test_keyspace", "-10"); err != nil ||
		len(s.ServedTypes) != 1 ||
		s.ServedTypes[0] != topo.TYPE_MASTER ||
		len(s.TabletTypes) != 2 ||
		s.TabletTypes[0] != topo.TYPE_REPLICA ||
		s.TabletTypes[1] != topo.TYPE_RDONLY {
		t.Errorf("GetSrvShard(valid): %v", err)
	}

	// test cell/keyspace entries (SrvKeyspace)
	srvKeyspace := topo.SrvKeyspace{
		Partitions: map[topo.TabletType]*topo.KeyspacePartition{
			topo.TYPE_MASTER: &topo.KeyspacePartition{
				Shards: []topo.SrvShard{
					topo.SrvShard{
						ServedTypes: []topo.TabletType{topo.TYPE_MASTER},
					},
				},
			},
		},
		TabletTypes: []topo.TabletType{topo.TYPE_MASTER},
	}
	if err := ts.UpdateSrvKeyspace(cell, "test_keyspace", &srvKeyspace); err != nil {
		t.Errorf("UpdateSrvKeyspace(1): %v", err)
	}
	if _, err := ts.GetSrvKeyspace(cell, "test_keyspace666"); err != topo.ErrNoNode {
		t.Errorf("GetSrvKeyspace(invalid): %v", err)
	}
	if s, err := ts.GetSrvKeyspace(cell, "test_keyspace"); err != nil ||
		len(s.TabletTypes) != 1 ||
		s.TabletTypes[0] != topo.TYPE_MASTER ||
		len(s.Partitions) != 1 ||
		len(s.Partitions[topo.TYPE_MASTER].Shards) != 1 ||
		len(s.Partitions[topo.TYPE_MASTER].Shards[0].ServedTypes) != 1 ||
		s.Partitions[topo.TYPE_MASTER].Shards[0].ServedTypes[0] != topo.TYPE_MASTER {
		t.Errorf("GetSrvKeyspace(valid): %v", err)
	}
	if k, err := ts.GetSrvKeyspaceNames(cell); err != nil || len(k) != 1 || k[0] != "test_keyspace" {
		t.Errorf("GetSrvKeyspaceNames(): %v", err)
	}
}
Example #4
0
File: api.go Project: erzel/vitess
func initAPI(ctx context.Context, ts topo.Server, actions *ActionRepository, realtimeStats *realtimeStats) {
	tabletHealthCache := newTabletHealthCache(ts)
	tmClient := tmclient.NewTabletManagerClient()

	// Cells
	handleCollection("cells", func(r *http.Request) (interface{}, error) {
		if getItemPath(r.URL.Path) != "" {
			return nil, errors.New("cells can only be listed, not retrieved")
		}
		return ts.GetKnownCells(ctx)
	})

	// Keyspaces
	handleCollection("keyspaces", func(r *http.Request) (interface{}, error) {
		keyspace := getItemPath(r.URL.Path)
		switch r.Method {
		case "GET":
			// List all keyspaces.
			if keyspace == "" {
				return ts.GetKeyspaces(ctx)
			}
			// Get the keyspace record.
			k, err := ts.GetKeyspace(ctx, keyspace)
			// Pass the embedded proto directly or jsonpb will panic.
			return k.Keyspace, err
			// Perform an action on a keyspace.
		case "POST":
			if keyspace == "" {
				return nil, errors.New("A POST request needs a keyspace in the URL")
			}
			if err := r.ParseForm(); err != nil {
				return nil, err
			}

			action := r.FormValue("action")
			if action == "" {
				return nil, errors.New("A POST request must specify action")
			}
			return actions.ApplyKeyspaceAction(ctx, action, keyspace, r), nil
		default:
			return nil, fmt.Errorf("unsupported HTTP method: %v", r.Method)
		}
	})

	// Shards
	handleCollection("shards", func(r *http.Request) (interface{}, error) {
		shardPath := getItemPath(r.URL.Path)
		if !strings.Contains(shardPath, "/") {
			return nil, fmt.Errorf("invalid shard path: %q", shardPath)
		}
		parts := strings.SplitN(shardPath, "/", 2)
		keyspace := parts[0]
		shard := parts[1]

		// List the shards in a keyspace.
		if shard == "" {
			return ts.GetShardNames(ctx, keyspace)
		}

		// Perform an action on a shard.
		if r.Method == "POST" {
			if err := r.ParseForm(); err != nil {
				return nil, err
			}
			action := r.FormValue("action")
			if action == "" {
				return nil, errors.New("must specify action")
			}
			return actions.ApplyShardAction(ctx, action, keyspace, shard, r), nil
		}

		// Get the shard record.
		si, err := ts.GetShard(ctx, keyspace, shard)
		// Pass the embedded proto directly or jsonpb will panic.
		return si.Shard, err
	})

	// SrvKeyspace
	handleCollection("srv_keyspace", func(r *http.Request) (interface{}, error) {
		keyspacePath := getItemPath(r.URL.Path)
		parts := strings.SplitN(keyspacePath, "/", 2)

		// Request was incorrectly formatted.
		if len(parts) != 2 {
			return nil, fmt.Errorf("invalid srvkeyspace path: %q  expected path: /srv_keyspace/<cell>/<keyspace>", keyspacePath)
		}

		cell := parts[0]
		keyspace := parts[1]

		if cell == "local" {
			if *localCell == "" {
				return nil, fmt.Errorf("local cell requested, but not specified. Please set with -cell flag")
			}
			cell = *localCell
		}

		// If a keyspace is provided then return the specified srvkeyspace.
		if keyspace != "" {
			srvKeyspace, err := ts.GetSrvKeyspace(ctx, cell, keyspace)
			if err != nil {
				return nil, fmt.Errorf("Can't get server keyspace: %v", err)
			}
			return srvKeyspace, nil
		}

		// Else return the srvKeyspace from all keyspaces.
		srvKeyspaces := make(map[string]interface{})
		keyspaceNamesList, err := ts.GetSrvKeyspaceNames(ctx, cell)
		if err != nil {
			return nil, fmt.Errorf("can't get list of SrvKeyspaceNames for cell %q: GetSrvKeyspaceNames returned: %v", cell, err)
		}
		for _, keyspaceName := range keyspaceNamesList {
			err := addSrvkeyspace(ctx, ts, cell, keyspaceName, srvKeyspaces)
			if err != nil {
				return nil, err
			}
		}
		return srvKeyspaces, nil

	})

	// Tablets
	handleCollection("tablets", func(r *http.Request) (interface{}, error) {
		tabletPath := getItemPath(r.URL.Path)

		// List tablets based on query params.
		if tabletPath == "" {
			if err := r.ParseForm(); err != nil {
				return nil, err
			}
			shardRef := r.FormValue("shard")
			cell := r.FormValue("cell")

			if shardRef != "" {
				// Look up by keyspace/shard, and optionally cell.
				keyspace, shard, err := topoproto.ParseKeyspaceShard(shardRef)
				if err != nil {
					return nil, err
				}
				if cell != "" {
					result, err := ts.FindAllTabletAliasesInShardByCell(ctx, keyspace, shard, []string{cell})
					if err != nil && err != topo.ErrPartialResult {
						return result, err
					}
					return result, nil
				}
				result, err := ts.FindAllTabletAliasesInShard(ctx, keyspace, shard)
				if err != nil && err != topo.ErrPartialResult {
					return result, err
				}
				return result, nil
			}

			// Get all tablets in a cell.
			if cell == "" {
				return nil, errors.New("cell param required")
			}
			return ts.GetTabletsByCell(ctx, cell)
		}

		// Get tablet health.
		if parts := strings.Split(tabletPath, "/"); len(parts) == 2 && parts[1] == "health" {
			tabletAlias, err := topoproto.ParseTabletAlias(parts[0])
			if err != nil {
				return nil, err
			}
			return tabletHealthCache.Get(ctx, tabletAlias)
		}

		tabletAlias, err := topoproto.ParseTabletAlias(tabletPath)
		if err != nil {
			return nil, err
		}

		// Perform an action on a tablet.
		if r.Method == "POST" {
			if err := r.ParseForm(); err != nil {
				return nil, err
			}
			action := r.FormValue("action")
			if action == "" {
				return nil, errors.New("must specify action")
			}
			return actions.ApplyTabletAction(ctx, action, tabletAlias, r), nil
		}

		// Get the tablet record.
		t, err := ts.GetTablet(ctx, tabletAlias)
		// Pass the embedded proto directly or jsonpb will panic.
		return t.Tablet, err
	})

	// Healthcheck real time status per (cell, keyspace, tablet type, metric).
	handleCollection("tablet_statuses", func(r *http.Request) (interface{}, error) {
		targetPath := getItemPath(r.URL.Path)

		// Get the heatmap data based on query parameters.
		if targetPath == "" {
			if err := r.ParseForm(); err != nil {
				return nil, err
			}
			keyspace := r.FormValue("keyspace")
			cell := r.FormValue("cell")
			tabletType := r.FormValue("type")
			_, err := topoproto.ParseTabletType(tabletType)
			// Excluding the case where parse fails because all tabletTypes was chosen.
			if err != nil && tabletType != "all" {
				return nil, fmt.Errorf("invalid tablet type: %v ", err)
			}
			metric := r.FormValue("metric")

			// Setting default values if none was specified in the query params.
			if keyspace == "" {
				keyspace = "all"
			}
			if cell == "" {
				cell = "all"
			}
			if tabletType == "" {
				tabletType = "all"
			}
			if metric == "" {
				metric = "health"
			}

			if realtimeStats == nil {
				return nil, fmt.Errorf("realtimeStats not initialized")
			}

			heatmap, err := realtimeStats.heatmapData(keyspace, cell, tabletType, metric)
			if err != nil {
				return nil, fmt.Errorf("couldn't get heatmap data: %v", err)
			}
			return heatmap, nil
		}

		return nil, fmt.Errorf("invalid target path: %q  expected path: ?keyspace=<keyspace>&cell=<cell>&type=<type>&metric=<metric>", targetPath)
	})

	handleCollection("tablet_health", func(r *http.Request) (interface{}, error) {
		tabletPath := getItemPath(r.URL.Path)
		parts := strings.SplitN(tabletPath, "/", 2)

		// Request was incorrectly formatted.
		if len(parts) != 2 {
			return nil, fmt.Errorf("invalid tablet_health path: %q  expected path: /tablet_health/<cell>/<uid>", tabletPath)
		}

		if realtimeStats == nil {
			return nil, fmt.Errorf("realtimeStats not initialized")
		}

		cell := parts[0]
		uidStr := parts[1]
		uid, err := topoproto.ParseUID(uidStr)
		if err != nil {
			return nil, fmt.Errorf("incorrect uid: %v", err)
		}

		tabletAlias := topodatapb.TabletAlias{
			Cell: cell,
			Uid:  uid,
		}
		tabletStat, err := realtimeStats.tabletStats(&tabletAlias)
		if err != nil {
			return nil, fmt.Errorf("could not get tabletStats: %v", err)
		}
		return tabletStat, nil
	})

	handleCollection("topology_info", func(r *http.Request) (interface{}, error) {
		targetPath := getItemPath(r.URL.Path)

		// Retrieving topology information (keyspaces, cells, and types) based on query params.
		if targetPath == "" {
			if err := r.ParseForm(); err != nil {
				return nil, err
			}
			keyspace := r.FormValue("keyspace")
			cell := r.FormValue("cell")

			// Setting default values if none was specified in the query params.
			if keyspace == "" {
				keyspace = "all"
			}
			if cell == "" {
				cell = "all"
			}

			if realtimeStats == nil {
				return nil, fmt.Errorf("realtimeStats not initialized")
			}

			return realtimeStats.topologyInfo(keyspace, cell), nil
		}
		return nil, fmt.Errorf("invalid target path: %q  expected path: ?keyspace=<keyspace>&cell=<cell>", targetPath)
	})

	// Vtctl Command
	http.HandleFunc(apiPrefix+"vtctl/", func(w http.ResponseWriter, r *http.Request) {
		if err := acl.CheckAccessHTTP(r, acl.ADMIN); err != nil {
			httpErrorf(w, r, "Access denied")
			return
		}
		var args []string
		resp := struct {
			Error  string
			Output string
		}{}
		if err := unmarshalRequest(r, &args); err != nil {
			httpErrorf(w, r, "can't unmarshal request: %v", err)
			return
		}

		logstream := logutil.NewMemoryLogger()

		wr := wrangler.New(logstream, ts, tmClient)
		// TODO(enisoc): Context for run command should be request-scoped.
		err := vtctl.RunCommand(ctx, wr, args)
		if err != nil {
			resp.Error = err.Error()
		}
		resp.Output = logstream.String()
		data, err := json.MarshalIndent(resp, "", "  ")
		if err != nil {
			httpErrorf(w, r, "json error: %v", err)
			return
		}
		w.Header().Set("Content-Type", jsonContentType)
		w.Write(data)
	})

	// Schema Change
	http.HandleFunc(apiPrefix+"schema/apply", func(w http.ResponseWriter, r *http.Request) {
		if err := acl.CheckAccessHTTP(r, acl.ADMIN); err != nil {
			httpErrorf(w, r, "Access denied")
			return
		}
		req := struct {
			Keyspace, SQL       string
			SlaveTimeoutSeconds int
		}{}
		if err := unmarshalRequest(r, &req); err != nil {
			httpErrorf(w, r, "can't unmarshal request: %v", err)
			return
		}
		if req.SlaveTimeoutSeconds <= 0 {
			req.SlaveTimeoutSeconds = 10
		}

		logger := logutil.NewCallbackLogger(func(ev *logutilpb.Event) {
			w.Write([]byte(logutil.EventString(ev)))
		})
		wr := wrangler.New(logger, ts, tmClient)

		executor := schemamanager.NewTabletExecutor(
			wr, time.Duration(req.SlaveTimeoutSeconds)*time.Second)

		schemamanager.Run(ctx,
			schemamanager.NewUIController(req.SQL, req.Keyspace, w), executor)
	})
}
Example #5
0
// CheckServingGraph makes sure the serving graph functions work properly.
func CheckServingGraph(ctx context.Context, t *testing.T, ts topo.Server) {
	cell := getLocalCell(ctx, t, ts)

	// test individual cell/keyspace/shard/type entries
	if _, err := ts.GetSrvTabletTypesPerShard(ctx, cell, "test_keyspace", "-10"); err != topo.ErrNoNode {
		t.Errorf("GetSrvTabletTypesPerShard(invalid): %v", err)
	}
	if _, _, err := ts.GetEndPoints(ctx, cell, "test_keyspace", "-10", topo.TYPE_MASTER); err != topo.ErrNoNode {
		t.Errorf("GetEndPoints(invalid): %v", err)
	}

	endPoints := &pb.EndPoints{
		Entries: []*pb.EndPoint{
			&pb.EndPoint{
				Uid:  1,
				Host: "host1",
				PortMap: map[string]int32{
					"vt":    1234,
					"mysql": 1235,
					"grpc":  1236,
				},
			},
		},
	}

	if err := ts.CreateEndPoints(ctx, cell, "test_keyspace", "-10", topo.TYPE_MASTER, endPoints); err != nil {
		t.Fatalf("CreateEndPoints(master): %v", err)
	}
	// Try to create again.
	if err := ts.CreateEndPoints(ctx, cell, "test_keyspace", "-10", topo.TYPE_MASTER, endPoints); err != topo.ErrNodeExists {
		t.Fatalf("CreateEndPoints(master): err = %v, want topo.ErrNodeExists", err)
	}

	// Get version.
	_, version, err := ts.GetEndPoints(ctx, cell, "test_keyspace", "-10", topo.TYPE_MASTER)
	if err != nil {
		t.Fatalf("GetEndPoints(master): %v", err)
	}
	// Make a change.
	tmp := endPoints.Entries[0].Uid
	endPoints.Entries[0].Uid = tmp + 1
	if err := topo.UpdateEndPoints(ctx, ts, cell, "test_keyspace", "-10", topo.TYPE_MASTER, endPoints, -1); err != nil {
		t.Fatalf("UpdateEndPoints(master): %v", err)
	}
	endPoints.Entries[0].Uid = tmp
	// Try to delete with the wrong version.
	if err := ts.DeleteEndPoints(ctx, cell, "test_keyspace", "-10", topo.TYPE_MASTER, version); err != topo.ErrBadVersion {
		t.Fatalf("DeleteEndPoints: err = %v, want topo.ErrBadVersion", err)
	}
	// Delete with the correct version.
	_, version, err = ts.GetEndPoints(ctx, cell, "test_keyspace", "-10", topo.TYPE_MASTER)
	if err != nil {
		t.Fatalf("GetEndPoints(master): %v", err)
	}
	if err := ts.DeleteEndPoints(ctx, cell, "test_keyspace", "-10", topo.TYPE_MASTER, version); err != nil {
		t.Fatalf("DeleteEndPoints: %v", err)
	}
	// Recreate it with an unconditional update.
	if err := topo.UpdateEndPoints(ctx, ts, cell, "test_keyspace", "-10", topo.TYPE_MASTER, endPoints, -1); err != nil {
		t.Fatalf("UpdateEndPoints(master): %v", err)
	}

	if types, err := ts.GetSrvTabletTypesPerShard(ctx, cell, "test_keyspace", "-10"); err != nil || len(types) != 1 || types[0] != topo.TYPE_MASTER {
		t.Errorf("GetSrvTabletTypesPerShard(1): %v %v", err, types)
	}

	// Delete it unconditionally.
	if err := ts.DeleteEndPoints(ctx, cell, "test_keyspace", "-10", topo.TYPE_MASTER, -1); err != nil {
		t.Fatalf("DeleteEndPoints: %v", err)
	}

	// Delete the SrvShard.
	if err := ts.DeleteSrvShard(ctx, cell, "test_keyspace", "-10"); err != nil {
		t.Fatalf("DeleteSrvShard: %v", err)
	}
	if _, err := ts.GetSrvShard(ctx, cell, "test_keyspace", "-10"); err != topo.ErrNoNode {
		t.Errorf("GetSrvShard(deleted) got %v, want ErrNoNode", err)
	}

	// Re-add endpoints.
	if err := topo.UpdateEndPoints(ctx, ts, cell, "test_keyspace", "-10", topo.TYPE_MASTER, endPoints, -1); err != nil {
		t.Fatalf("UpdateEndPoints(master): %v", err)
	}

	addrs, version, err := ts.GetEndPoints(ctx, cell, "test_keyspace", "-10", topo.TYPE_MASTER)
	if err != nil {
		t.Errorf("GetEndPoints: %v", err)
	}
	if len(addrs.Entries) != 1 || addrs.Entries[0].Uid != 1 {
		t.Errorf("GetEndPoints(1): %v", addrs)
	}
	if pm := addrs.Entries[0].PortMap; pm["vt"] != 1234 || pm["mysql"] != 1235 || pm["grpc"] != 1236 {
		t.Errorf("GetSrcTabletType(1).PortMap: want %v, got %v", endPoints.Entries[0].PortMap, pm)
	}

	// Update with the wrong version.
	if err := topo.UpdateEndPoints(ctx, ts, cell, "test_keyspace", "-10", topo.TYPE_MASTER, endPoints, version+1); err != topo.ErrBadVersion {
		t.Fatalf("UpdateEndPoints(master): err = %v, want topo.ErrBadVersion", err)
	}
	// Update with the right version.
	if err := topo.UpdateEndPoints(ctx, ts, cell, "test_keyspace", "-10", topo.TYPE_MASTER, endPoints, version); err != nil {
		t.Fatalf("UpdateEndPoints(master): %v", err)
	}
	// Update existing EndPoints unconditionally.
	if err := topo.UpdateEndPoints(ctx, ts, cell, "test_keyspace", "-10", topo.TYPE_MASTER, endPoints, -1); err != nil {
		t.Fatalf("UpdateEndPoints(master): %v", err)
	}

	if err := ts.DeleteEndPoints(ctx, cell, "test_keyspace", "-10", topo.TYPE_REPLICA, -1); err != topo.ErrNoNode {
		t.Errorf("DeleteEndPoints(unknown): %v", err)
	}
	if err := ts.DeleteEndPoints(ctx, cell, "test_keyspace", "-10", topo.TYPE_MASTER, -1); err != nil {
		t.Errorf("DeleteEndPoints(master): %v", err)
	}

	// test cell/keyspace/shard entries (SrvShard)
	srvShard := &pb.SrvShard{
		Name:       "-10",
		KeyRange:   newKeyRange3("-10"),
		MasterCell: "test",
	}
	if err := ts.UpdateSrvShard(ctx, cell, "test_keyspace", "-10", srvShard); err != nil {
		t.Fatalf("UpdateSrvShard(1): %v", err)
	}
	if _, err := ts.GetSrvShard(ctx, cell, "test_keyspace", "666"); err != topo.ErrNoNode {
		t.Errorf("GetSrvShard(invalid): %v", err)
	}
	if s, err := ts.GetSrvShard(ctx, cell, "test_keyspace", "-10"); err != nil ||
		s.Name != "-10" ||
		!key.KeyRangeEqual(s.KeyRange, newKeyRange3("-10")) ||
		s.MasterCell != "test" {
		t.Errorf("GetSrvShard(valid): %v", err)
	}

	// test cell/keyspace entries (SrvKeyspace)
	srvKeyspace := topo.SrvKeyspace{
		Partitions: map[topo.TabletType]*topo.KeyspacePartition{
			topo.TYPE_MASTER: &topo.KeyspacePartition{
				ShardReferences: []topo.ShardReference{
					topo.ShardReference{
						Name:     "-80",
						KeyRange: newKeyRange("-80"),
					},
				},
			},
		},
		ShardingColumnName: "video_id",
		ShardingColumnType: key.KIT_UINT64,
		ServedFrom: map[topo.TabletType]string{
			topo.TYPE_REPLICA: "other_keyspace",
		},
	}
	if err := ts.UpdateSrvKeyspace(ctx, cell, "test_keyspace", &srvKeyspace); err != nil {
		t.Errorf("UpdateSrvKeyspace(1): %v", err)
	}
	if _, err := ts.GetSrvKeyspace(ctx, cell, "test_keyspace666"); err != topo.ErrNoNode {
		t.Errorf("GetSrvKeyspace(invalid): %v", err)
	}
	if k, err := ts.GetSrvKeyspace(ctx, cell, "test_keyspace"); err != nil ||
		len(k.Partitions) != 1 ||
		len(k.Partitions[topo.TYPE_MASTER].ShardReferences) != 1 ||
		k.Partitions[topo.TYPE_MASTER].ShardReferences[0].Name != "-80" ||
		k.Partitions[topo.TYPE_MASTER].ShardReferences[0].KeyRange != newKeyRange("-80") ||
		k.ShardingColumnName != "video_id" ||
		k.ShardingColumnType != key.KIT_UINT64 ||
		k.ServedFrom[topo.TYPE_REPLICA] != "other_keyspace" {
		t.Errorf("GetSrvKeyspace(valid): %v %v", err, k)
	}
	if k, err := ts.GetSrvKeyspaceNames(ctx, cell); err != nil || len(k) != 1 || k[0] != "test_keyspace" {
		t.Errorf("GetSrvKeyspaceNames(): %v", err)
	}

	// check that updating a SrvKeyspace out of the blue works
	if err := ts.UpdateSrvKeyspace(ctx, cell, "unknown_keyspace_so_far", &srvKeyspace); err != nil {
		t.Fatalf("UpdateSrvKeyspace(2): %v", err)
	}
	if k, err := ts.GetSrvKeyspace(ctx, cell, "unknown_keyspace_so_far"); err != nil ||
		len(k.Partitions) != 1 ||
		len(k.Partitions[topo.TYPE_MASTER].ShardReferences) != 1 ||
		k.Partitions[topo.TYPE_MASTER].ShardReferences[0].Name != "-80" ||
		k.Partitions[topo.TYPE_MASTER].ShardReferences[0].KeyRange != newKeyRange("-80") ||
		k.ShardingColumnName != "video_id" ||
		k.ShardingColumnType != key.KIT_UINT64 ||
		k.ServedFrom[topo.TYPE_REPLICA] != "other_keyspace" {
		t.Errorf("GetSrvKeyspace(out of the blue): %v %v", err, *k)
	}

	// Delete the SrvKeyspace.
	if err := ts.DeleteSrvKeyspace(ctx, cell, "unknown_keyspace_so_far"); err != nil {
		t.Fatalf("DeleteSrvShard: %v", err)
	}
	if _, err := ts.GetSrvKeyspace(ctx, cell, "unknown_keyspace_so_far"); err != topo.ErrNoNode {
		t.Errorf("GetSrvKeyspace(deleted) got %v, want ErrNoNode", err)
	}
}
Example #6
0
File: api.go Project: CowLeo/vitess
func initAPI(ctx context.Context, ts topo.Server, actions *ActionRepository) {
	tabletHealthCache := newTabletHealthCache(ts)
	tmClient := tmclient.NewTabletManagerClient()

	// Cells
	handleCollection("cells", func(r *http.Request) (interface{}, error) {
		if getItemPath(r.URL.Path) != "" {
			return nil, errors.New("cells can only be listed, not retrieved")
		}
		return ts.GetKnownCells(ctx)
	})

	// Keyspaces
	handleCollection("keyspaces", func(r *http.Request) (interface{}, error) {
		keyspace := getItemPath(r.URL.Path)

		// List all keyspaces.
		if keyspace == "" {
			return ts.GetKeyspaces(ctx)
		}

		// Perform an action on a keyspace.
		if r.Method == "POST" {
			if err := r.ParseForm(); err != nil {
				return nil, err
			}
			action := r.FormValue("action")
			if action == "" {
				return nil, errors.New("must specify action")
			}
			return actions.ApplyKeyspaceAction(ctx, action, keyspace, r), nil
		}

		// Get the keyspace record.
		return ts.GetKeyspace(ctx, keyspace)
	})

	// Shards
	handleCollection("shards", func(r *http.Request) (interface{}, error) {
		shardPath := getItemPath(r.URL.Path)
		if !strings.Contains(shardPath, "/") {
			return nil, fmt.Errorf("invalid shard path: %q", shardPath)
		}
		parts := strings.SplitN(shardPath, "/", 2)
		keyspace := parts[0]
		shard := parts[1]

		// List the shards in a keyspace.
		if shard == "" {
			return ts.GetShardNames(ctx, keyspace)
		}

		// Perform an action on a shard.
		if r.Method == "POST" {
			if err := r.ParseForm(); err != nil {
				return nil, err
			}
			action := r.FormValue("action")
			if action == "" {
				return nil, errors.New("must specify action")
			}
			return actions.ApplyShardAction(ctx, action, keyspace, shard, r), nil
		}

		// Get the shard record.
		return ts.GetShard(ctx, keyspace, shard)
	})
	//SrvKeyspace
	handleCollection("srv_keyspace", func(r *http.Request) (interface{}, error) {
		keyspacePath := getItemPath(r.URL.Path)
		parts := strings.SplitN(keyspacePath, "/", 2)

		//request was incorrectly formatted
		if len(parts) != 2 {
			return nil, fmt.Errorf("invalid srvkeyspace path: %q  expected path: /srv_keyspace/<cell>/<keyspace>", keyspacePath)
		}

		cell := parts[0]
		keyspace := parts[1]

		if cell == "local" {
			if *localCell == "" {
				return nil, fmt.Errorf("local cell requested, but not specified. Please set with -cell flag")
			}
			cell = *localCell
		}

		//If a keyspace is provided then return the specified srvkeyspace
		if keyspace != "" {
			srvKeyspace, err := ts.GetSrvKeyspace(ctx, cell, keyspace)
			if err != nil {
				return nil, fmt.Errorf("Can't get server keyspace: %v", err)
			}
			return srvKeyspace, nil
		}

		//Else return the srvKeyspace from all keyspaces
		srvKeyspaces := make(map[string]interface{})
		keyspaceNamesList, err := ts.GetSrvKeyspaceNames(ctx, cell)
		if err != nil {
			return nil, fmt.Errorf("can't get list of SrvKeyspaceNames for cell %q: GetSrvKeyspaceNames returned: %v", cell, err)
		}
		for _, keyspaceName := range keyspaceNamesList {
			err := addSrvkeyspace(ctx, ts, cell, keyspaceName, srvKeyspaces)
			if err != nil {
				return nil, err
			}
		}
		return srvKeyspaces, nil

	})

	// Tablets
	handleCollection("tablets", func(r *http.Request) (interface{}, error) {
		tabletPath := getItemPath(r.URL.Path)

		// List tablets based on query params.
		if tabletPath == "" {
			if err := r.ParseForm(); err != nil {
				return nil, err
			}
			shardRef := r.FormValue("shard")
			cell := r.FormValue("cell")

			if shardRef != "" {
				// Look up by keyspace/shard, and optionally cell.
				keyspace, shard, err := topoproto.ParseKeyspaceShard(shardRef)
				if err != nil {
					return nil, err
				}
				if cell != "" {
					return ts.FindAllTabletAliasesInShardByCell(ctx, keyspace, shard, []string{cell})
				}
				return ts.FindAllTabletAliasesInShard(ctx, keyspace, shard)
			}

			// Get all tablets in a cell.
			if cell == "" {
				return nil, errors.New("cell param required")
			}
			return ts.GetTabletsByCell(ctx, cell)
		}

		// Get tablet health.
		if parts := strings.Split(tabletPath, "/"); len(parts) == 2 && parts[1] == "health" {
			tabletAlias, err := topoproto.ParseTabletAlias(parts[0])
			if err != nil {
				return nil, err
			}
			return tabletHealthCache.Get(ctx, tabletAlias)
		}

		tabletAlias, err := topoproto.ParseTabletAlias(tabletPath)
		if err != nil {
			return nil, err
		}

		// Perform an action on a tablet.
		if r.Method == "POST" {
			if err := r.ParseForm(); err != nil {
				return nil, err
			}
			action := r.FormValue("action")
			if action == "" {
				return nil, errors.New("must specify action")
			}
			return actions.ApplyTabletAction(ctx, action, tabletAlias, r), nil
		}

		// Get the tablet record.
		return ts.GetTablet(ctx, tabletAlias)
	})

	// Schema Change
	http.HandleFunc(apiPrefix+"schema/apply", func(w http.ResponseWriter, r *http.Request) {
		req := struct {
			Keyspace, SQL       string
			SlaveTimeoutSeconds int
		}{}
		if err := unmarshalRequest(r, &req); err != nil {
			httpErrorf(w, r, "can't unmarshal request: %v", err)
			return
		}
		if req.SlaveTimeoutSeconds <= 0 {
			req.SlaveTimeoutSeconds = 10
		}

		logger := logutil.NewCallbackLogger(func(ev *logutilpb.Event) {
			w.Write([]byte(logutil.EventString(ev)))
		})
		wr := wrangler.New(logger, ts, tmClient)

		executor := schemamanager.NewTabletExecutor(
			wr, time.Duration(req.SlaveTimeoutSeconds)*time.Second)

		schemamanager.Run(ctx,
			schemamanager.NewUIController(req.SQL, req.Keyspace, w), executor)
	})
}