chore: add k8s nodes, namespaces, and cluster list (#6230)

pkg/query-service/app/http_handler.go

@@ -112,9 +112,12 @@ type APIHandler struct {
 
 	UseLogsNewSchema bool
 
-	hostsRepo     *inframetrics.HostsRepo
-	processesRepo *inframetrics.ProcessesRepo
-	podsRepo      *inframetrics.PodsRepo
+	hostsRepo      *inframetrics.HostsRepo
+	processesRepo  *inframetrics.ProcessesRepo
+	podsRepo       *inframetrics.PodsRepo
+	nodesRepo      *inframetrics.NodesRepo
+	namespacesRepo *inframetrics.NamespacesRepo
+	clustersRepo   *inframetrics.ClustersRepo
 }
 
 type APIHandlerOpts struct {
@@ -187,6 +190,9 @@ func NewAPIHandler(opts APIHandlerOpts) (*APIHandler, error) {
 	hostsRepo := inframetrics.NewHostsRepo(opts.Reader, querierv2)
 	processesRepo := inframetrics.NewProcessesRepo(opts.Reader, querierv2)
 	podsRepo := inframetrics.NewPodsRepo(opts.Reader, querierv2)
+	nodesRepo := inframetrics.NewNodesRepo(opts.Reader, querierv2)
+	namespacesRepo := inframetrics.NewNamespacesRepo(opts.Reader, querierv2)
+	clustersRepo := inframetrics.NewClustersRepo(opts.Reader, querierv2)
 
 	aH := &APIHandler{
 		reader:                        opts.Reader,
@@ -208,6 +214,9 @@ func NewAPIHandler(opts APIHandlerOpts) (*APIHandler, error) {
 		hostsRepo:                     hostsRepo,
 		processesRepo:                 processesRepo,
 		podsRepo:                      podsRepo,
+		nodesRepo:                     nodesRepo,
+		namespacesRepo:                namespacesRepo,
+		clustersRepo:                  clustersRepo,
 	}
 
 	logsQueryBuilder := logsv3.PrepareLogsQuery
@@ -371,6 +380,21 @@ func (aH *APIHandler) RegisterInfraMetricsRoutes(router *mux.Router, am *AuthMid
 	podsSubRouter.HandleFunc("/attribute_keys", am.ViewAccess(aH.getPodAttributeKeys)).Methods(http.MethodGet)
 	podsSubRouter.HandleFunc("/attribute_values", am.ViewAccess(aH.getPodAttributeValues)).Methods(http.MethodGet)
 	podsSubRouter.HandleFunc("/list", am.ViewAccess(aH.getPodList)).Methods(http.MethodPost)
+
+	nodesSubRouter := router.PathPrefix("/api/v1/nodes").Subrouter()
+	nodesSubRouter.HandleFunc("/attribute_keys", am.ViewAccess(aH.getNodeAttributeKeys)).Methods(http.MethodGet)
+	nodesSubRouter.HandleFunc("/attribute_values", am.ViewAccess(aH.getNodeAttributeValues)).Methods(http.MethodGet)
+	nodesSubRouter.HandleFunc("/list", am.ViewAccess(aH.getNodeList)).Methods(http.MethodPost)
+
+	namespacesSubRouter := router.PathPrefix("/api/v1/namespaces").Subrouter()
+	namespacesSubRouter.HandleFunc("/attribute_keys", am.ViewAccess(aH.getNamespaceAttributeKeys)).Methods(http.MethodGet)
+	namespacesSubRouter.HandleFunc("/attribute_values", am.ViewAccess(aH.getNamespaceAttributeValues)).Methods(http.MethodGet)
+	namespacesSubRouter.HandleFunc("/list", am.ViewAccess(aH.getNamespaceList)).Methods(http.MethodPost)
+
+	clustersSubRouter := router.PathPrefix("/api/v1/clusters").Subrouter()
+	clustersSubRouter.HandleFunc("/attribute_keys", am.ViewAccess(aH.getClusterAttributeKeys)).Methods(http.MethodGet)
+	clustersSubRouter.HandleFunc("/attribute_values", am.ViewAccess(aH.getClusterAttributeValues)).Methods(http.MethodGet)
+	clustersSubRouter.HandleFunc("/list", am.ViewAccess(aH.getClusterList)).Methods(http.MethodPost)
 }
 
 func (aH *APIHandler) RegisterWebSocketPaths(router *mux.Router, am *AuthMiddleware) {

pkg/query-service/app/infra.go

@@ -175,3 +175,162 @@ func (aH *APIHandler) getPodList(w http.ResponseWriter, r *http.Request) {
 
 	aH.Respond(w, podList)
 }
+
+func (aH *APIHandler) getNodeAttributeKeys(w http.ResponseWriter, r *http.Request) {
+	ctx := r.Context()
+	req, err := parseFilterAttributeKeyRequest(r)
+	if err != nil {
+		RespondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, nil)
+		return
+	}
+
+	keys, err := aH.nodesRepo.GetNodeAttributeKeys(ctx, *req)
+	if err != nil {
+		RespondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, nil)
+		return
+	}
+
+	aH.Respond(w, keys)
+}
+
+func (aH *APIHandler) getNodeAttributeValues(w http.ResponseWriter, r *http.Request) {
+	ctx := r.Context()
+	req, err := parseFilterAttributeValueRequest(r)
+	if err != nil {
+		RespondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, nil)
+		return
+	}
+
+	values, err := aH.nodesRepo.GetNodeAttributeValues(ctx, *req)
+	if err != nil {
+		RespondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, nil)
+		return
+	}
+
+	aH.Respond(w, values)
+}
+
+func (aH *APIHandler) getNodeList(w http.ResponseWriter, r *http.Request) {
+	ctx := r.Context()
+	req := model.NodeListRequest{}
+
+	err := json.NewDecoder(r.Body).Decode(&req)
+	if err != nil {
+		RespondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, nil)
+		return
+	}
+
+	nodeList, err := aH.nodesRepo.GetNodeList(ctx, req)
+	if err != nil {
+		RespondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, nil)
+		return
+	}
+
+	aH.Respond(w, nodeList)
+}
+
+func (aH *APIHandler) getNamespaceAttributeKeys(w http.ResponseWriter, r *http.Request) {
+	ctx := r.Context()
+	req, err := parseFilterAttributeKeyRequest(r)
+	if err != nil {
+		RespondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, nil)
+		return
+	}
+
+	keys, err := aH.namespacesRepo.GetNamespaceAttributeKeys(ctx, *req)
+	if err != nil {
+		RespondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, nil)
+		return
+	}
+
+	aH.Respond(w, keys)
+}
+
+func (aH *APIHandler) getNamespaceAttributeValues(w http.ResponseWriter, r *http.Request) {
+	ctx := r.Context()
+	req, err := parseFilterAttributeValueRequest(r)
+	if err != nil {
+		RespondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, nil)
+		return
+	}
+
+	values, err := aH.namespacesRepo.GetNamespaceAttributeValues(ctx, *req)
+	if err != nil {
+		RespondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, nil)
+		return
+	}
+
+	aH.Respond(w, values)
+}
+
+func (aH *APIHandler) getNamespaceList(w http.ResponseWriter, r *http.Request) {
+	ctx := r.Context()
+	req := model.NamespaceListRequest{}
+
+	err := json.NewDecoder(r.Body).Decode(&req)
+	if err != nil {
+		RespondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, nil)
+		return
+	}
+
+	namespaceList, err := aH.namespacesRepo.GetNamespaceList(ctx, req)
+	if err != nil {
+		RespondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, nil)
+		return
+	}
+
+	aH.Respond(w, namespaceList)
+}
+
+func (aH *APIHandler) getClusterAttributeKeys(w http.ResponseWriter, r *http.Request) {
+	ctx := r.Context()
+	req, err := parseFilterAttributeKeyRequest(r)
+	if err != nil {
+		RespondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, nil)
+		return
+	}
+
+	keys, err := aH.clustersRepo.GetClusterAttributeKeys(ctx, *req)
+	if err != nil {
+		RespondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, nil)
+		return
+	}
+
+	aH.Respond(w, keys)
+}
+
+func (aH *APIHandler) getClusterAttributeValues(w http.ResponseWriter, r *http.Request) {
+	ctx := r.Context()
+	req, err := parseFilterAttributeValueRequest(r)
+	if err != nil {
+		RespondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, nil)
+		return
+	}
+
+	values, err := aH.clustersRepo.GetClusterAttributeValues(ctx, *req)
+	if err != nil {
+		RespondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, nil)
+		return
+	}
+
+	aH.Respond(w, values)
+}
+
+func (aH *APIHandler) getClusterList(w http.ResponseWriter, r *http.Request) {
+	ctx := r.Context()
+	req := model.ClusterListRequest{}
+
+	err := json.NewDecoder(r.Body).Decode(&req)
+	if err != nil {
+		RespondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, nil)
+		return
+	}
+
+	clusterList, err := aH.clustersRepo.GetClusterList(ctx, req)
+	if err != nil {
+		RespondError(w, &model.ApiError{Typ: model.ErrorInternal, Err: err}, nil)
+		return
+	}
+
+	aH.Respond(w, clusterList)
+}

pkg/query-service/app/inframetrics/clusters.go

@@ -0,0 +1,342 @@
+package inframetrics
+
+import (
+	"context"
+	"math"
+	"sort"
+
+	"go.signoz.io/signoz/pkg/query-service/app/metrics/v4/helpers"
+	"go.signoz.io/signoz/pkg/query-service/common"
+	"go.signoz.io/signoz/pkg/query-service/interfaces"
+	"go.signoz.io/signoz/pkg/query-service/model"
+	v3 "go.signoz.io/signoz/pkg/query-service/model/v3"
+	"go.signoz.io/signoz/pkg/query-service/postprocess"
+	"golang.org/x/exp/slices"
+)
+
+var (
+	metricToUseForClusters = "k8s_node_cpu_utilization"
+
+	clusterAttrsToEnrich = []string{"k8s_cluster_name"}
+
+	k8sClusterUIDAttrKey = "k8s_cluster_uid"
+
+	queryNamesForClusters = map[string][]string{
+		"cpu":                {"A"},
+		"cpu_allocatable":    {"B"},
+		"memory":             {"C"},
+		"memory_allocatable": {"D"},
+	}
+	clusterQueryNames = []string{"A", "B", "C", "D"}
+)
+
+type ClustersRepo struct {
+	reader    interfaces.Reader
+	querierV2 interfaces.Querier
+}
+
+func NewClustersRepo(reader interfaces.Reader, querierV2 interfaces.Querier) *ClustersRepo {
+	return &ClustersRepo{reader: reader, querierV2: querierV2}
+}
+
+func (n *ClustersRepo) GetClusterAttributeKeys(ctx context.Context, req v3.FilterAttributeKeyRequest) (*v3.FilterAttributeKeyResponse, error) {
+	req.DataSource = v3.DataSourceMetrics
+	req.AggregateAttribute = metricToUseForClusters
+	if req.Limit == 0 {
+		req.Limit = 50
+	}
+
+	attributeKeysResponse, err := n.reader.GetMetricAttributeKeys(ctx, &req)
+	if err != nil {
+		return nil, err
+	}
+
+	return attributeKeysResponse, nil
+}
+
+func (n *ClustersRepo) GetClusterAttributeValues(ctx context.Context, req v3.FilterAttributeValueRequest) (*v3.FilterAttributeValueResponse, error) {
+	req.DataSource = v3.DataSourceMetrics
+	req.AggregateAttribute = metricToUseForClusters
+	if req.Limit == 0 {
+		req.Limit = 50
+	}
+
+	attributeValuesResponse, err := n.reader.GetMetricAttributeValues(ctx, &req)
+	if err != nil {
+		return nil, err
+	}
+
+	return attributeValuesResponse, nil
+}
+
+func (p *ClustersRepo) getMetadataAttributes(ctx context.Context, req model.ClusterListRequest) (map[string]map[string]string, error) {
+	clusterAttrs := map[string]map[string]string{}
+
+	for _, key := range clusterAttrsToEnrich {
+		hasKey := false
+		for _, groupByKey := range req.GroupBy {
+			if groupByKey.Key == key {
+				hasKey = true
+				break
+			}
+		}
+		if !hasKey {
+			req.GroupBy = append(req.GroupBy, v3.AttributeKey{Key: key})
+		}
+	}
+
+	mq := v3.BuilderQuery{
+		DataSource: v3.DataSourceMetrics,
+		AggregateAttribute: v3.AttributeKey{
+			Key:      metricToUseForClusters,
+			DataType: v3.AttributeKeyDataTypeFloat64,
+		},
+		Temporality: v3.Unspecified,
+		GroupBy:     req.GroupBy,
+	}
+
+	query, err := helpers.PrepareTimeseriesFilterQuery(req.Start, req.End, &mq)
+	if err != nil {
+		return nil, err
+	}
+
+	query = localQueryToDistributedQuery(query)
+
+	attrsListResponse, err := p.reader.GetListResultV3(ctx, query)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, row := range attrsListResponse {
+		stringData := map[string]string{}
+		for key, value := range row.Data {
+			if str, ok := value.(string); ok {
+				stringData[key] = str
+			} else if strPtr, ok := value.(*string); ok {
+				stringData[key] = *strPtr
+			}
+		}
+
+		clusterUID := stringData[k8sClusterUIDAttrKey]
+		if _, ok := clusterAttrs[clusterUID]; !ok {
+			clusterAttrs[clusterUID] = map[string]string{}
+		}
+
+		for _, key := range req.GroupBy {
+			clusterAttrs[clusterUID][key.Key] = stringData[key.Key]
+		}
+	}
+
+	return clusterAttrs, nil
+}
+
+func (p *ClustersRepo) getTopClusterGroups(ctx context.Context, req model.ClusterListRequest, q *v3.QueryRangeParamsV3) ([]map[string]string, []map[string]string, error) {
+	step, timeSeriesTableName, samplesTableName := getParamsForTopClusters(req)
+
+	queryNames := queryNamesForClusters[req.OrderBy.ColumnName]
+	topClusterGroupsQueryRangeParams := &v3.QueryRangeParamsV3{
+		Start: req.Start,
+		End:   req.End,
+		Step:  step,
+		CompositeQuery: &v3.CompositeQuery{
+			BuilderQueries: map[string]*v3.BuilderQuery{},
+			QueryType:      v3.QueryTypeBuilder,
+			PanelType:      v3.PanelTypeTable,
+		},
+	}
+
+	for _, queryName := range queryNames {
+		query := q.CompositeQuery.BuilderQueries[queryName].Clone()
+		query.StepInterval = step
+		query.MetricTableHints = &v3.MetricTableHints{
+			TimeSeriesTableName: timeSeriesTableName,
+			SamplesTableName:    samplesTableName,
+		}
+		if req.Filters != nil && len(req.Filters.Items) > 0 {
+			if query.Filters == nil {
+				query.Filters = &v3.FilterSet{Operator: "AND", Items: []v3.FilterItem{}}
+			}
+			query.Filters.Items = append(query.Filters.Items, req.Filters.Items...)
+		}
+		topClusterGroupsQueryRangeParams.CompositeQuery.BuilderQueries[queryName] = query
+	}
+
+	queryResponse, _, err := p.querierV2.QueryRange(ctx, topClusterGroupsQueryRangeParams)
+	if err != nil {
+		return nil, nil, err
+	}
+	formattedResponse, err := postprocess.PostProcessResult(queryResponse, topClusterGroupsQueryRangeParams)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	if len(formattedResponse) == 0 || len(formattedResponse[0].Series) == 0 {
+		return nil, nil, nil
+	}
+
+	if req.OrderBy.Order == v3.DirectionDesc {
+		sort.Slice(formattedResponse[0].Series, func(i, j int) bool {
+			return formattedResponse[0].Series[i].Points[0].Value > formattedResponse[0].Series[j].Points[0].Value
+		})
+	} else {
+		sort.Slice(formattedResponse[0].Series, func(i, j int) bool {
+			return formattedResponse[0].Series[i].Points[0].Value < formattedResponse[0].Series[j].Points[0].Value
+		})
+	}
+
+	max := math.Min(float64(req.Offset+req.Limit), float64(len(formattedResponse[0].Series)))
+
+	paginatedTopClusterGroupsSeries := formattedResponse[0].Series[req.Offset:int(max)]
+
+	topClusterGroups := []map[string]string{}
+	for _, series := range paginatedTopClusterGroupsSeries {
+		topClusterGroups = append(topClusterGroups, series.Labels)
+	}
+	allClusterGroups := []map[string]string{}
+	for _, series := range formattedResponse[0].Series {
+		allClusterGroups = append(allClusterGroups, series.Labels)
+	}
+
+	return topClusterGroups, allClusterGroups, nil
+}
+
+func (p *ClustersRepo) GetClusterList(ctx context.Context, req model.ClusterListRequest) (model.ClusterListResponse, error) {
+	resp := model.ClusterListResponse{}
+
+	if req.Limit == 0 {
+		req.Limit = 10
+	}
+
+	if req.OrderBy == nil {
+		req.OrderBy = &v3.OrderBy{ColumnName: "cpu", Order: v3.DirectionDesc}
+	}
+
+	if req.GroupBy == nil {
+		req.GroupBy = []v3.AttributeKey{{Key: k8sClusterUIDAttrKey}}
+		resp.Type = model.ResponseTypeList
+	} else {
+		resp.Type = model.ResponseTypeGroupedList
+	}
+
+	step := int64(math.Max(float64(common.MinAllowedStepInterval(req.Start, req.End)), 60))
+
+	query := NodesTableListQuery.Clone()
+
+	query.Start = req.Start
+	query.End = req.End
+	query.Step = step
+
+	for _, query := range query.CompositeQuery.BuilderQueries {
+		query.StepInterval = step
+		if req.Filters != nil && len(req.Filters.Items) > 0 {
+			if query.Filters == nil {
+				query.Filters = &v3.FilterSet{Operator: "AND", Items: []v3.FilterItem{}}
+			}
+			query.Filters.Items = append(query.Filters.Items, req.Filters.Items...)
+		}
+		query.GroupBy = req.GroupBy
+	}
+
+	clusterAttrs, err := p.getMetadataAttributes(ctx, req)
+	if err != nil {
+		return resp, err
+	}
+
+	topClusterGroups, allClusterGroups, err := p.getTopClusterGroups(ctx, req, query)
+	if err != nil {
+		return resp, err
+	}
+
+	groupFilters := map[string][]string{}
+	for _, topClusterGroup := range topClusterGroups {
+		for k, v := range topClusterGroup {
+			groupFilters[k] = append(groupFilters[k], v)
+		}
+	}
+
+	for groupKey, groupValues := range groupFilters {
+		hasGroupFilter := false
+		if req.Filters != nil && len(req.Filters.Items) > 0 {
+			for _, filter := range req.Filters.Items {
+				if filter.Key.Key == groupKey {
+					hasGroupFilter = true
+					break
+				}
+			}
+		}
+
+		if !hasGroupFilter {
+			for _, query := range query.CompositeQuery.BuilderQueries {
+				query.Filters.Items = append(query.Filters.Items, v3.FilterItem{
+					Key:      v3.AttributeKey{Key: groupKey},
+					Value:    groupValues,
+					Operator: v3.FilterOperatorIn,
+				})
+			}
+		}
+	}
+
+	queryResponse, _, err := p.querierV2.QueryRange(ctx, query)
+	if err != nil {
+		return resp, err
+	}
+
+	formattedResponse, err := postprocess.PostProcessResult(queryResponse, query)
+	if err != nil {
+		return resp, err
+	}
+
+	records := []model.ClusterListRecord{}
+
+	for _, result := range formattedResponse {
+		for _, row := range result.Table.Rows {
+
+			record := model.ClusterListRecord{
+				CPUUsage:          -1,
+				CPUAllocatable:    -1,
+				MemoryUsage:       -1,
+				MemoryAllocatable: -1,
+			}
+
+			if clusterUID, ok := row.Data[k8sClusterUIDAttrKey].(string); ok {
+				record.ClusterUID = clusterUID
+			}
+
+			if cpu, ok := row.Data["A"].(float64); ok {
+				record.CPUUsage = cpu
+			}
+
+			if cpuAllocatable, ok := row.Data["B"].(float64); ok {
+				record.CPUAllocatable = cpuAllocatable
+			}
+
+			if mem, ok := row.Data["C"].(float64); ok {
+				record.MemoryUsage = mem
+			}
+
+			if memoryAllocatable, ok := row.Data["D"].(float64); ok {
+				record.MemoryAllocatable = memoryAllocatable
+			}
+
+			record.Meta = map[string]string{}
+			if _, ok := clusterAttrs[record.ClusterUID]; ok {
+				record.Meta = clusterAttrs[record.ClusterUID]
+			}
+
+			for k, v := range row.Data {
+				if slices.Contains(clusterQueryNames, k) {
+					continue
+				}
+				if labelValue, ok := v.(string); ok {
+					record.Meta[k] = labelValue
+				}
+			}
+
+			records = append(records, record)
+		}
+	}
+	resp.Total = len(allClusterGroups)
+	resp.Records = records
+
+	return resp, nil
+}

pkg/query-service/app/inframetrics/common.go

@@ -57,6 +57,18 @@ func getParamsForTopPods(req model.PodListRequest) (int64, string, string) {
 	return getParamsForTopItems(req.Start, req.End)
 }
 
+func getParamsForTopNodes(req model.NodeListRequest) (int64, string, string) {
+	return getParamsForTopItems(req.Start, req.End)
+}
+
+func getParamsForTopNamespaces(req model.NamespaceListRequest) (int64, string, string) {
+	return getParamsForTopItems(req.Start, req.End)
+}
+
+func getParamsForTopClusters(req model.ClusterListRequest) (int64, string, string) {
+	return getParamsForTopItems(req.Start, req.End)
+}
+
 // TODO(srikanthccv): remove this
 // What is happening here?
 // The `PrepareTimeseriesFilterQuery` uses the local time series table for sub-query because each fingerprint

pkg/query-service/app/inframetrics/namespaces.go

@@ -0,0 +1,329 @@
+package inframetrics
+
+import (
+	"context"
+	"math"
+	"sort"
+
+	"go.signoz.io/signoz/pkg/query-service/app/metrics/v4/helpers"
+	"go.signoz.io/signoz/pkg/query-service/common"
+	"go.signoz.io/signoz/pkg/query-service/interfaces"
+	"go.signoz.io/signoz/pkg/query-service/model"
+	v3 "go.signoz.io/signoz/pkg/query-service/model/v3"
+	"go.signoz.io/signoz/pkg/query-service/postprocess"
+	"golang.org/x/exp/slices"
+)
+
+var (
+	metricToUseForNamespaces = "k8s_pod_cpu_utilization"
+
+	namespaceAttrsToEnrich = []string{
+		"k8s_namespace_name",
+		"k8s_cluster_name",
+	}
+
+	queryNamesForNamespaces = map[string][]string{
+		"cpu":    {"A"},
+		"memory": {"D"},
+	}
+	namespaceQueryNames = []string{"A", "D"}
+
+	attributesKeysForNamespaces = []v3.AttributeKey{
+		{Key: "k8s_namespace_name"},
+		{Key: "k8s_cluster_name"},
+	}
+
+	k8sNamespaceNameAttrKey = "k8s_namespace_name"
+)
+
+type NamespacesRepo struct {
+	reader    interfaces.Reader
+	querierV2 interfaces.Querier
+}
+
+func NewNamespacesRepo(reader interfaces.Reader, querierV2 interfaces.Querier) *NamespacesRepo {
+	return &NamespacesRepo{reader: reader, querierV2: querierV2}
+}
+
+func (p *NamespacesRepo) GetNamespaceAttributeKeys(ctx context.Context, req v3.FilterAttributeKeyRequest) (*v3.FilterAttributeKeyResponse, error) {
+	return &v3.FilterAttributeKeyResponse{AttributeKeys: attributesKeysForNamespaces}, nil
+}
+
+func (p *NamespacesRepo) GetNamespaceAttributeValues(ctx context.Context, req v3.FilterAttributeValueRequest) (*v3.FilterAttributeValueResponse, error) {
+	req.DataSource = v3.DataSourceMetrics
+	req.AggregateAttribute = metricToUseForNamespaces
+	if req.Limit == 0 {
+		req.Limit = 50
+	}
+
+	attributeValuesResponse, err := p.reader.GetMetricAttributeValues(ctx, &req)
+	if err != nil {
+		return nil, err
+	}
+	return attributeValuesResponse, nil
+}
+
+func (p *NamespacesRepo) getMetadataAttributes(ctx context.Context, req model.NamespaceListRequest) (map[string]map[string]string, error) {
+	namespaceAttrs := map[string]map[string]string{}
+
+	for _, key := range namespaceAttrsToEnrich {
+		hasKey := false
+		for _, groupByKey := range req.GroupBy {
+			if groupByKey.Key == key {
+				hasKey = true
+				break
+			}
+		}
+		if !hasKey {
+			req.GroupBy = append(req.GroupBy, v3.AttributeKey{Key: key})
+		}
+	}
+
+	mq := v3.BuilderQuery{
+		DataSource: v3.DataSourceMetrics,
+		AggregateAttribute: v3.AttributeKey{
+			Key:      metricToUseForNamespaces,
+			DataType: v3.AttributeKeyDataTypeFloat64,
+		},
+		Temporality: v3.Unspecified,
+		GroupBy:     req.GroupBy,
+	}
+
+	query, err := helpers.PrepareTimeseriesFilterQuery(req.Start, req.End, &mq)
+	if err != nil {
+		return nil, err
+	}
+
+	query = localQueryToDistributedQuery(query)
+
+	attrsListResponse, err := p.reader.GetListResultV3(ctx, query)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, row := range attrsListResponse {
+		stringData := map[string]string{}
+		for key, value := range row.Data {
+			if str, ok := value.(string); ok {
+				stringData[key] = str
+			} else if strPtr, ok := value.(*string); ok {
+				stringData[key] = *strPtr
+			}
+		}
+
+		namespaceName := stringData[k8sNamespaceNameAttrKey]
+		if _, ok := namespaceAttrs[namespaceName]; !ok {
+			namespaceAttrs[namespaceName] = map[string]string{}
+		}
+
+		for _, key := range req.GroupBy {
+			namespaceAttrs[namespaceName][key.Key] = stringData[key.Key]
+		}
+	}
+
+	return namespaceAttrs, nil
+}
+
+func (p *NamespacesRepo) getTopNamespaceGroups(ctx context.Context, req model.NamespaceListRequest, q *v3.QueryRangeParamsV3) ([]map[string]string, []map[string]string, error) {
+	step, timeSeriesTableName, samplesTableName := getParamsForTopNamespaces(req)
+
+	queryNames := queryNamesForNamespaces[req.OrderBy.ColumnName]
+	topNamespaceGroupsQueryRangeParams := &v3.QueryRangeParamsV3{
+		Start: req.Start,
+		End:   req.End,
+		Step:  step,
+		CompositeQuery: &v3.CompositeQuery{
+			BuilderQueries: map[string]*v3.BuilderQuery{},
+			QueryType:      v3.QueryTypeBuilder,
+			PanelType:      v3.PanelTypeTable,
+		},
+	}
+
+	for _, queryName := range queryNames {
+		query := q.CompositeQuery.BuilderQueries[queryName].Clone()
+		query.StepInterval = step
+		query.MetricTableHints = &v3.MetricTableHints{
+			TimeSeriesTableName: timeSeriesTableName,
+			SamplesTableName:    samplesTableName,
+		}
+		if req.Filters != nil && len(req.Filters.Items) > 0 {
+			if query.Filters == nil {
+				query.Filters = &v3.FilterSet{Operator: "AND", Items: []v3.FilterItem{}}
+			}
+			query.Filters.Items = append(query.Filters.Items, req.Filters.Items...)
+		}
+		topNamespaceGroupsQueryRangeParams.CompositeQuery.BuilderQueries[queryName] = query
+	}
+
+	queryResponse, _, err := p.querierV2.QueryRange(ctx, topNamespaceGroupsQueryRangeParams)
+	if err != nil {
+		return nil, nil, err
+	}
+	formattedResponse, err := postprocess.PostProcessResult(queryResponse, topNamespaceGroupsQueryRangeParams)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	if len(formattedResponse) == 0 || len(formattedResponse[0].Series) == 0 {
+		return nil, nil, nil
+	}
+
+	if req.OrderBy.Order == v3.DirectionDesc {
+		sort.Slice(formattedResponse[0].Series, func(i, j int) bool {
+			return formattedResponse[0].Series[i].Points[0].Value > formattedResponse[0].Series[j].Points[0].Value
+		})
+	} else {
+		sort.Slice(formattedResponse[0].Series, func(i, j int) bool {
+			return formattedResponse[0].Series[i].Points[0].Value < formattedResponse[0].Series[j].Points[0].Value
+		})
+	}
+
+	paginatedTopNamespaceGroupsSeries := formattedResponse[0].Series[req.Offset : req.Offset+req.Limit]
+
+	topNamespaceGroups := []map[string]string{}
+	for _, series := range paginatedTopNamespaceGroupsSeries {
+		topNamespaceGroups = append(topNamespaceGroups, series.Labels)
+	}
+	allNamespaceGroups := []map[string]string{}
+	for _, series := range formattedResponse[0].Series {
+		allNamespaceGroups = append(allNamespaceGroups, series.Labels)
+	}
+
+	return topNamespaceGroups, allNamespaceGroups, nil
+}
+
+func (p *NamespacesRepo) GetNamespaceList(ctx context.Context, req model.NamespaceListRequest) (model.NamespaceListResponse, error) {
+	resp := model.NamespaceListResponse{}
+
+	if req.Limit == 0 {
+		req.Limit = 10
+	}
+
+	if req.OrderBy == nil {
+		req.OrderBy = &v3.OrderBy{ColumnName: "cpu", Order: v3.DirectionDesc}
+	}
+
+	if req.GroupBy == nil {
+		req.GroupBy = []v3.AttributeKey{{Key: k8sNamespaceNameAttrKey}}
+		resp.Type = model.ResponseTypeList
+	} else {
+		resp.Type = model.ResponseTypeGroupedList
+	}
+
+	step := int64(math.Max(float64(common.MinAllowedStepInterval(req.Start, req.End)), 60))
+
+	query := PodsTableListQuery.Clone()
+
+	query.Start = req.Start
+	query.End = req.End
+	query.Step = step
+
+	for _, q := range query.CompositeQuery.BuilderQueries {
+
+		if !slices.Contains(namespaceQueryNames, q.QueryName) {
+			delete(query.CompositeQuery.BuilderQueries, q.QueryName)
+		}
+
+		q.StepInterval = step
+		if req.Filters != nil && len(req.Filters.Items) > 0 {
+			if q.Filters == nil {
+				q.Filters = &v3.FilterSet{Operator: "AND", Items: []v3.FilterItem{}}
+			}
+			q.Filters.Items = append(q.Filters.Items, req.Filters.Items...)
+		}
+		q.GroupBy = req.GroupBy
+	}
+
+	namespaceAttrs, err := p.getMetadataAttributes(ctx, req)
+	if err != nil {
+		return resp, err
+	}
+
+	topNamespaceGroups, allNamespaceGroups, err := p.getTopNamespaceGroups(ctx, req, query)
+	if err != nil {
+		return resp, err
+	}
+
+	groupFilters := map[string][]string{}
+	for _, topNamespaceGroup := range topNamespaceGroups {
+		for k, v := range topNamespaceGroup {
+			groupFilters[k] = append(groupFilters[k], v)
+		}
+	}
+
+	for groupKey, groupValues := range groupFilters {
+		hasGroupFilter := false
+		if req.Filters != nil && len(req.Filters.Items) > 0 {
+			for _, filter := range req.Filters.Items {
+				if filter.Key.Key == groupKey {
+					hasGroupFilter = true
+					break
+				}
+			}
+		}
+
+		if !hasGroupFilter {
+			for _, query := range query.CompositeQuery.BuilderQueries {
+				query.Filters.Items = append(query.Filters.Items, v3.FilterItem{
+					Key:      v3.AttributeKey{Key: groupKey},
+					Value:    groupValues,
+					Operator: v3.FilterOperatorIn,
+				})
+			}
+		}
+	}
+
+	queryResponse, _, err := p.querierV2.QueryRange(ctx, query)
+	if err != nil {
+		return resp, err
+	}
+
+	formattedResponse, err := postprocess.PostProcessResult(queryResponse, query)
+	if err != nil {
+		return resp, err
+	}
+
+	records := []model.NamespaceListRecord{}
+
+	for _, result := range formattedResponse {
+		for _, row := range result.Table.Rows {
+
+			record := model.NamespaceListRecord{
+				CPUUsage:    -1,
+				MemoryUsage: -1,
+			}
+
+			if name, ok := row.Data[k8sNamespaceNameAttrKey].(string); ok {
+				record.NamespaceName = name
+			}
+
+			if cpu, ok := row.Data["A"].(float64); ok {
+				record.CPUUsage = cpu
+			}
+
+			if memory, ok := row.Data["D"].(float64); ok {
+				record.MemoryUsage = memory
+			}
+
+			record.Meta = map[string]string{}
+			if _, ok := namespaceAttrs[record.NamespaceName]; ok {
+				record.Meta = namespaceAttrs[record.NamespaceName]
+			}
+
+			for k, v := range row.Data {
+				if slices.Contains(namespaceQueryNames, k) {
+					continue
+				}
+				if labelValue, ok := v.(string); ok {
+					record.Meta[k] = labelValue
+				}
+			}
+
+			records = append(records, record)
+		}
+	}
+	resp.Total = len(allNamespaceGroups)
+	resp.Records = records
+
+	return resp, nil
+}

pkg/query-service/app/inframetrics/nodes.go

@@ -0,0 +1,349 @@
+package inframetrics
+
+import (
+	"context"
+	"math"
+	"sort"
+
+	"go.signoz.io/signoz/pkg/query-service/app/metrics/v4/helpers"
+	"go.signoz.io/signoz/pkg/query-service/common"
+	"go.signoz.io/signoz/pkg/query-service/interfaces"
+	"go.signoz.io/signoz/pkg/query-service/model"
+	v3 "go.signoz.io/signoz/pkg/query-service/model/v3"
+	"go.signoz.io/signoz/pkg/query-service/postprocess"
+	"golang.org/x/exp/slices"
+)
+
+var (
+	metricToUseForNodes = "k8s_node_cpu_utilization"
+
+	nodeAttrsToEnrich = []string{"k8s_node_name", "k8s_node_uid"}
+
+	k8sNodeUIDAttrKey = "k8s_node_uid"
+
+	queryNamesForNodes = map[string][]string{
+		"cpu":                {"A"},
+		"cpu_allocatable":    {"B"},
+		"memory":             {"C"},
+		"memory_allocatable": {"D"},
+	}
+	nodeQueryNames = []string{"A", "B", "C", "D"}
+
+	metricNamesForNodes = map[string]string{
+		"cpu":                "k8s_node_cpu_utilization",
+		"cpu_allocatable":    "k8s_node_allocatable_cpu",
+		"memory":             "k8s_node_memory_usage",
+		"memory_allocatable": "k8s_node_allocatable_memory",
+	}
+)
+
+type NodesRepo struct {
+	reader    interfaces.Reader
+	querierV2 interfaces.Querier
+}
+
+func NewNodesRepo(reader interfaces.Reader, querierV2 interfaces.Querier) *NodesRepo {
+	return &NodesRepo{reader: reader, querierV2: querierV2}
+}
+
+func (n *NodesRepo) GetNodeAttributeKeys(ctx context.Context, req v3.FilterAttributeKeyRequest) (*v3.FilterAttributeKeyResponse, error) {
+	req.DataSource = v3.DataSourceMetrics
+	req.AggregateAttribute = metricToUseForNodes
+	if req.Limit == 0 {
+		req.Limit = 50
+	}
+
+	attributeKeysResponse, err := n.reader.GetMetricAttributeKeys(ctx, &req)
+	if err != nil {
+		return nil, err
+	}
+
+	return attributeKeysResponse, nil
+}
+
+func (n *NodesRepo) GetNodeAttributeValues(ctx context.Context, req v3.FilterAttributeValueRequest) (*v3.FilterAttributeValueResponse, error) {
+	req.DataSource = v3.DataSourceMetrics
+	req.AggregateAttribute = metricToUseForNodes
+	if req.Limit == 0 {
+		req.Limit = 50
+	}
+
+	attributeValuesResponse, err := n.reader.GetMetricAttributeValues(ctx, &req)
+	if err != nil {
+		return nil, err
+	}
+
+	return attributeValuesResponse, nil
+}
+
+func (p *NodesRepo) getMetadataAttributes(ctx context.Context, req model.NodeListRequest) (map[string]map[string]string, error) {
+	nodeAttrs := map[string]map[string]string{}
+
+	for _, key := range nodeAttrsToEnrich {
+		hasKey := false
+		for _, groupByKey := range req.GroupBy {
+			if groupByKey.Key == key {
+				hasKey = true
+				break
+			}
+		}
+		if !hasKey {
+			req.GroupBy = append(req.GroupBy, v3.AttributeKey{Key: key})
+		}
+	}
+
+	mq := v3.BuilderQuery{
+		DataSource: v3.DataSourceMetrics,
+		AggregateAttribute: v3.AttributeKey{
+			Key:      metricToUseForNodes,
+			DataType: v3.AttributeKeyDataTypeFloat64,
+		},
+		Temporality: v3.Unspecified,
+		GroupBy:     req.GroupBy,
+	}
+
+	query, err := helpers.PrepareTimeseriesFilterQuery(req.Start, req.End, &mq)
+	if err != nil {
+		return nil, err
+	}
+
+	query = localQueryToDistributedQuery(query)
+
+	attrsListResponse, err := p.reader.GetListResultV3(ctx, query)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, row := range attrsListResponse {
+		stringData := map[string]string{}
+		for key, value := range row.Data {
+			if str, ok := value.(string); ok {
+				stringData[key] = str
+			} else if strPtr, ok := value.(*string); ok {
+				stringData[key] = *strPtr
+			}
+		}
+
+		nodeUID := stringData[k8sNodeUIDAttrKey]
+		if _, ok := nodeAttrs[nodeUID]; !ok {
+			nodeAttrs[nodeUID] = map[string]string{}
+		}
+
+		for _, key := range req.GroupBy {
+			nodeAttrs[nodeUID][key.Key] = stringData[key.Key]
+		}
+	}
+
+	return nodeAttrs, nil
+}
+
+func (p *NodesRepo) getTopNodeGroups(ctx context.Context, req model.NodeListRequest, q *v3.QueryRangeParamsV3) ([]map[string]string, []map[string]string, error) {
+	step, timeSeriesTableName, samplesTableName := getParamsForTopNodes(req)
+
+	queryNames := queryNamesForNodes[req.OrderBy.ColumnName]
+	topNodeGroupsQueryRangeParams := &v3.QueryRangeParamsV3{
+		Start: req.Start,
+		End:   req.End,
+		Step:  step,
+		CompositeQuery: &v3.CompositeQuery{
+			BuilderQueries: map[string]*v3.BuilderQuery{},
+			QueryType:      v3.QueryTypeBuilder,
+			PanelType:      v3.PanelTypeTable,
+		},
+	}
+
+	for _, queryName := range queryNames {
+		query := q.CompositeQuery.BuilderQueries[queryName].Clone()
+		query.StepInterval = step
+		query.MetricTableHints = &v3.MetricTableHints{
+			TimeSeriesTableName: timeSeriesTableName,
+			SamplesTableName:    samplesTableName,
+		}
+		if req.Filters != nil && len(req.Filters.Items) > 0 {
+			if query.Filters == nil {
+				query.Filters = &v3.FilterSet{Operator: "AND", Items: []v3.FilterItem{}}
+			}
+			query.Filters.Items = append(query.Filters.Items, req.Filters.Items...)
+		}
+		topNodeGroupsQueryRangeParams.CompositeQuery.BuilderQueries[queryName] = query
+	}
+
+	queryResponse, _, err := p.querierV2.QueryRange(ctx, topNodeGroupsQueryRangeParams)
+	if err != nil {
+		return nil, nil, err
+	}
+	formattedResponse, err := postprocess.PostProcessResult(queryResponse, topNodeGroupsQueryRangeParams)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	if len(formattedResponse) == 0 || len(formattedResponse[0].Series) == 0 {
+		return nil, nil, nil
+	}
+
+	if req.OrderBy.Order == v3.DirectionDesc {
+		sort.Slice(formattedResponse[0].Series, func(i, j int) bool {
+			return formattedResponse[0].Series[i].Points[0].Value > formattedResponse[0].Series[j].Points[0].Value
+		})
+	} else {
+		sort.Slice(formattedResponse[0].Series, func(i, j int) bool {
+			return formattedResponse[0].Series[i].Points[0].Value < formattedResponse[0].Series[j].Points[0].Value
+		})
+	}
+
+	max := math.Min(float64(req.Offset+req.Limit), float64(len(formattedResponse[0].Series)))
+
+	paginatedTopNodeGroupsSeries := formattedResponse[0].Series[req.Offset:int(max)]
+
+	topNodeGroups := []map[string]string{}
+	for _, series := range paginatedTopNodeGroupsSeries {
+		topNodeGroups = append(topNodeGroups, series.Labels)
+	}
+	allNodeGroups := []map[string]string{}
+	for _, series := range formattedResponse[0].Series {
+		allNodeGroups = append(allNodeGroups, series.Labels)
+	}
+
+	return topNodeGroups, allNodeGroups, nil
+}
+
+func (p *NodesRepo) GetNodeList(ctx context.Context, req model.NodeListRequest) (model.NodeListResponse, error) {
+	resp := model.NodeListResponse{}
+
+	if req.Limit == 0 {
+		req.Limit = 10
+	}
+
+	if req.OrderBy == nil {
+		req.OrderBy = &v3.OrderBy{ColumnName: "cpu", Order: v3.DirectionDesc}
+	}
+
+	if req.GroupBy == nil {
+		req.GroupBy = []v3.AttributeKey{{Key: k8sNodeUIDAttrKey}}
+		resp.Type = model.ResponseTypeList
+	} else {
+		resp.Type = model.ResponseTypeGroupedList
+	}
+
+	step := int64(math.Max(float64(common.MinAllowedStepInterval(req.Start, req.End)), 60))
+
+	query := NodesTableListQuery.Clone()
+
+	query.Start = req.Start
+	query.End = req.End
+	query.Step = step
+
+	for _, query := range query.CompositeQuery.BuilderQueries {
+		query.StepInterval = step
+		if req.Filters != nil && len(req.Filters.Items) > 0 {
+			if query.Filters == nil {
+				query.Filters = &v3.FilterSet{Operator: "AND", Items: []v3.FilterItem{}}
+			}
+			query.Filters.Items = append(query.Filters.Items, req.Filters.Items...)
+		}
+		query.GroupBy = req.GroupBy
+	}
+
+	nodeAttrs, err := p.getMetadataAttributes(ctx, req)
+	if err != nil {
+		return resp, err
+	}
+
+	topNodeGroups, allNodeGroups, err := p.getTopNodeGroups(ctx, req, query)
+	if err != nil {
+		return resp, err
+	}
+
+	groupFilters := map[string][]string{}
+	for _, topNodeGroup := range topNodeGroups {
+		for k, v := range topNodeGroup {
+			groupFilters[k] = append(groupFilters[k], v)
+		}
+	}
+
+	for groupKey, groupValues := range groupFilters {
+		hasGroupFilter := false
+		if req.Filters != nil && len(req.Filters.Items) > 0 {
+			for _, filter := range req.Filters.Items {
+				if filter.Key.Key == groupKey {
+					hasGroupFilter = true
+					break
+				}
+			}
+		}
+
+		if !hasGroupFilter {
+			for _, query := range query.CompositeQuery.BuilderQueries {
+				query.Filters.Items = append(query.Filters.Items, v3.FilterItem{
+					Key:      v3.AttributeKey{Key: groupKey},
+					Value:    groupValues,
+					Operator: v3.FilterOperatorIn,
+				})
+			}
+		}
+	}
+
+	queryResponse, _, err := p.querierV2.QueryRange(ctx, query)
+	if err != nil {
+		return resp, err
+	}
+
+	formattedResponse, err := postprocess.PostProcessResult(queryResponse, query)
+	if err != nil {
+		return resp, err
+	}
+
+	records := []model.NodeListRecord{}
+
+	for _, result := range formattedResponse {
+		for _, row := range result.Table.Rows {
+
+			record := model.NodeListRecord{
+				NodeCPUUsage:          -1,
+				NodeCPUAllocatable:    -1,
+				NodeMemoryUsage:       -1,
+				NodeMemoryAllocatable: -1,
+			}
+
+			if nodeUID, ok := row.Data[k8sNodeUIDAttrKey].(string); ok {
+				record.NodeUID = nodeUID
+			}
+
+			if cpu, ok := row.Data["A"].(float64); ok {
+				record.NodeCPUUsage = cpu
+			}
+
+			if cpuAllocatable, ok := row.Data["B"].(float64); ok {
+				record.NodeCPUAllocatable = cpuAllocatable
+			}
+
+			if mem, ok := row.Data["C"].(float64); ok {
+				record.NodeMemoryUsage = mem
+			}
+
+			if memory, ok := row.Data["D"].(float64); ok {
+				record.NodeMemoryAllocatable = memory
+			}
+
+			record.Meta = map[string]string{}
+			if _, ok := nodeAttrs[record.NodeUID]; ok {
+				record.Meta = nodeAttrs[record.NodeUID]
+			}
+
+			for k, v := range row.Data {
+				if slices.Contains(nodeQueryNames, k) {
+					continue
+				}
+				if labelValue, ok := v.(string); ok {
+					record.Meta[k] = labelValue
+				}
+			}
+
+			records = append(records, record)
+		}
+	}
+	resp.Total = len(allNodeGroups)
+	resp.Records = records
+
+	return resp, nil
+}

pkg/query-service/app/inframetrics/nodes_query.go

@@ -0,0 +1,118 @@
+package inframetrics
+
+import v3 "go.signoz.io/signoz/pkg/query-service/model/v3"
+
+var NodesTableListQuery = v3.QueryRangeParamsV3{
+	CompositeQuery: &v3.CompositeQuery{
+		BuilderQueries: map[string]*v3.BuilderQuery{
+			// node cpu utilization
+			"A": {
+				QueryName:  "A",
+				DataSource: v3.DataSourceMetrics,
+				AggregateAttribute: v3.AttributeKey{
+					Key:      metricNamesForNodes["cpu"],
+					DataType: v3.AttributeKeyDataTypeFloat64,
+				},
+				Temporality: v3.Unspecified,
+				Filters: &v3.FilterSet{
+					Operator: "AND",
+					Items:    []v3.FilterItem{},
+				},
+				GroupBy: []v3.AttributeKey{
+					{
+						Key:      k8sNodeUIDAttrKey,
+						DataType: v3.AttributeKeyDataTypeString,
+						Type:     v3.AttributeKeyTypeResource,
+					},
+				},
+				Expression:       "A",
+				ReduceTo:         v3.ReduceToOperatorAvg,
+				TimeAggregation:  v3.TimeAggregationAvg,
+				SpaceAggregation: v3.SpaceAggregationSum,
+				Disabled:         false,
+			},
+			// node cpu allocatable
+			"B": {
+				QueryName:  "B",
+				DataSource: v3.DataSourceMetrics,
+				AggregateAttribute: v3.AttributeKey{
+					Key:      metricNamesForNodes["cpu_allocatable"],
+					DataType: v3.AttributeKeyDataTypeFloat64,
+				},
+				Temporality: v3.Unspecified,
+				Filters: &v3.FilterSet{
+					Operator: "AND",
+					Items:    []v3.FilterItem{},
+				},
+				GroupBy: []v3.AttributeKey{
+					{
+						Key:      k8sNodeUIDAttrKey,
+						DataType: v3.AttributeKeyDataTypeString,
+						Type:     v3.AttributeKeyTypeResource,
+					},
+				},
+				Expression:       "B",
+				ReduceTo:         v3.ReduceToOperatorAvg,
+				TimeAggregation:  v3.TimeAggregationAnyLast,
+				SpaceAggregation: v3.SpaceAggregationSum,
+				Disabled:         false,
+			},
+			// node memory utilization
+			"C": {
+				QueryName:  "C",
+				DataSource: v3.DataSourceMetrics,
+				AggregateAttribute: v3.AttributeKey{
+					Key:      metricNamesForNodes["memory"],
+					DataType: v3.AttributeKeyDataTypeFloat64,
+				},
+				Temporality: v3.Unspecified,
+				Filters: &v3.FilterSet{
+					Operator: "AND",
+					Items:    []v3.FilterItem{},
+				},
+				GroupBy: []v3.AttributeKey{
+					{
+						Key:      k8sNodeUIDAttrKey,
+						DataType: v3.AttributeKeyDataTypeString,
+						Type:     v3.AttributeKeyTypeResource,
+					},
+				},
+				Expression:       "C",
+				ReduceTo:         v3.ReduceToOperatorAvg,
+				TimeAggregation:  v3.TimeAggregationAvg,
+				SpaceAggregation: v3.SpaceAggregationSum,
+				Disabled:         false,
+			},
+			// node memory allocatable
+			"D": {
+				QueryName:  "D",
+				DataSource: v3.DataSourceMetrics,
+				AggregateAttribute: v3.AttributeKey{
+					Key:      metricNamesForNodes["memory_allocatable"],
+					DataType: v3.AttributeKeyDataTypeFloat64,
+				},
+				Temporality: v3.Unspecified,
+				Filters: &v3.FilterSet{
+					Operator: "AND",
+					Items:    []v3.FilterItem{},
+				},
+				GroupBy: []v3.AttributeKey{
+					{
+						Key:      k8sNodeUIDAttrKey,
+						DataType: v3.AttributeKeyDataTypeString,
+						Type:     v3.AttributeKeyTypeResource,
+					},
+				},
+				Expression:       "D",
+				ReduceTo:         v3.ReduceToOperatorAvg,
+				TimeAggregation:  v3.TimeAggregationAnyLast,
+				SpaceAggregation: v3.SpaceAggregationSum,
+				Disabled:         false,
+			},
+		},
+		PanelType: v3.PanelTypeTable,
+		QueryType: v3.QueryTypeBuilder,
+	},
+	Version:      "v4",
+	FormatForWeb: true,
+}

pkg/query-service/app/inframetrics/pods.go

@@ -2,6 +2,7 @@ package inframetrics
 
 import (
 	"context"
+	"math"
 	"sort"
 
 	"go.signoz.io/signoz/pkg/query-service/app/metrics/v4/helpers"
@@ -248,7 +249,7 @@ func (p *PodsRepo) GetPodList(ctx context.Context, req model.PodListRequest) (mo
 		resp.Type = model.ResponseTypeGroupedList
 	}
 
-	step := common.MinAllowedStepInterval(req.Start, req.End)
+	step := int64(math.Max(float64(common.MinAllowedStepInterval(req.Start, req.End)), 60))
 
 	query := PodsTableListQuery.Clone()
 

pkg/query-service/model/infra.go

@@ -126,3 +126,76 @@ type PodCountByPhase struct {
 	Failed    int `json:"failed"`
 	Unknown   int `json:"unknown"`
 }
+
+type NodeListRequest struct {
+	Start   int64             `json:"start"` // epoch time in ms
+	End     int64             `json:"end"`   // epoch time in ms
+	Filters *v3.FilterSet     `json:"filters"`
+	GroupBy []v3.AttributeKey `json:"groupBy"`
+	OrderBy *v3.OrderBy       `json:"orderBy"`
+	Offset  int               `json:"offset"`
+	Limit   int               `json:"limit"`
+}
+
+type NodeListResponse struct {
+	Type    ResponseType     `json:"type"`
+	Records []NodeListRecord `json:"records"`
+	Total   int              `json:"total"`
+}
+
+type NodeListRecord struct {
+	NodeUID               string            `json:"nodeUID,omitempty"`
+	NodeCPUUsage          float64           `json:"nodeCPUUsage"`
+	NodeCPUAllocatable    float64           `json:"nodeCPUAllocatable"`
+	NodeMemoryUsage       float64           `json:"nodeMemoryUsage"`
+	NodeMemoryAllocatable float64           `json:"nodeMemoryAllocatable"`
+	Meta                  map[string]string `json:"meta"`
+}
+
+type NamespaceListRequest struct {
+	Start   int64             `json:"start"` // epoch time in ms
+	End     int64             `json:"end"`   // epoch time in ms
+	Filters *v3.FilterSet     `json:"filters"`
+	GroupBy []v3.AttributeKey `json:"groupBy"`
+	OrderBy *v3.OrderBy       `json:"orderBy"`
+	Offset  int               `json:"offset"`
+	Limit   int               `json:"limit"`
+}
+
+type NamespaceListResponse struct {
+	Type    ResponseType          `json:"type"`
+	Records []NamespaceListRecord `json:"records"`
+	Total   int                   `json:"total"`
+}
+
+type NamespaceListRecord struct {
+	NamespaceName string            `json:"namespaceName"`
+	CPUUsage      float64           `json:"cpuUsage"`
+	MemoryUsage   float64           `json:"memoryUsage"`
+	Meta          map[string]string `json:"meta"`
+}
+
+type ClusterListRequest struct {
+	Start   int64             `json:"start"` // epoch time in ms
+	End     int64             `json:"end"`   // epoch time in ms
+	Filters *v3.FilterSet     `json:"filters"`
+	GroupBy []v3.AttributeKey `json:"groupBy"`
+	OrderBy *v3.OrderBy       `json:"orderBy"`
+	Offset  int               `json:"offset"`
+	Limit   int               `json:"limit"`
+}
+
+type ClusterListResponse struct {
+	Type    ResponseType        `json:"type"`
+	Records []ClusterListRecord `json:"records"`
+	Total   int                 `json:"total"`
+}
+
+type ClusterListRecord struct {
+	ClusterUID        string            `json:"clusterUID"`
+	CPUUsage          float64           `json:"cpuUsage"`
+	CPUAllocatable    float64           `json:"cpuAllocatable"`
+	MemoryUsage       float64           `json:"memoryUsage"`
+	MemoryAllocatable float64           `json:"memoryAllocatable"`
+	Meta              map[string]string `json:"meta"`
+}