Merge pull request #1921 from grafana/getdata-use-pointslicepool

use pointslicepool for /getdata cluster-fan out requests

api/init.go

@@ -1,6 +1,7 @@
 package api
 
 import (
+	"github.com/grafana/metrictank/api/models"
 	"github.com/grafana/metrictank/expr"
 	"github.com/grafana/metrictank/pointslicepool"
 )
@@ -10,4 +11,5 @@ var pointSlicePool *pointslicepool.PointSlicePool
 func init() {
 	pointSlicePool = pointslicepool.New(pointslicepool.DefaultPointSliceSize)
 	expr.Pool(pointSlicePool)
+	models.Pool(pointSlicePool)
 }

api/models/init_test.go

@@ -0,0 +1,7 @@
+package models
+
+import "github.com/grafana/metrictank/pointslicepool"
+
+func init() {
+	pointSlicePool = pointslicepool.New(100)
+}

api/models/pointslicepool.go

@@ -0,0 +1,12 @@
+package models
+
+import (
+	"github.com/grafana/metrictank/pointslicepool"
+)
+
+var pointSlicePool *pointslicepool.PointSlicePool
+
+// Pool tells the models package library which pool to use for temporary []schema.Point
+func Pool(p *pointslicepool.PointSlicePool) {
+	pointSlicePool = p
+}

api/models/series.go

@@ -16,7 +16,7 @@ import (
 )
 
 //go:generate msgp
-//msgp:ignore SeriesMetaPropertiesExport
+//msgp:ignore SeriesMetaPropertiesExport Series
 
 type Series struct {
 	Target       string            // for fetched data, set from models.Req.Target, i.e. the metric graphite key. for function output, whatever should be shown as target string (legend)