mirror of
https://github.com/ClusterCockpit/cc-metric-store.git
synced 2024-09-20 07:27:26 +02:00
Accept unit tags for incoming metrics and store it in the buffer.
This commit is contained in:
Thomas Roehl
parent
c8c6560040
commit
89acbe8db2
@ -16,6 +16,7 @@ import (
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type Metric struct {
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Name string
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Value Float
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Unit string
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mc MetricConfig
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}
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@ -206,7 +207,7 @@ func decodeLine(dec *lineprotocol.Decoder, clusterDefault string) error {
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}
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typeBuf, subTypeBuf := typeBuf[:0], subTypeBuf[:0]
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cluster, host := clusterDefault, ""
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cluster, host, unit := clusterDefault, "", ""
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for {
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key, val, err := dec.NextTag()
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if err != nil {
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@ -232,6 +233,8 @@ func decodeLine(dec *lineprotocol.Decoder, clusterDefault string) error {
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host = string(val)
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lvl = nil
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}
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case "unit":
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unit = string(val)
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case "type":
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if string(val) == "node" {
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break
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@ -300,6 +303,7 @@ func decodeLine(dec *lineprotocol.Decoder, clusterDefault string) error {
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} else {
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return fmt.Errorf("unsupported value type in message: %s", val.Kind().String())
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}
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metric.Unit = unit
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}
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if t, err = dec.Time(lineprotocol.Second, t); err != nil {
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24
memstore.go
24
memstore.go
@ -35,6 +35,7 @@ var (
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type buffer struct {
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frequency int64 // Time between two "slots"
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start int64 // Timestamp of when `data[0]` was written.
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unit string // Unit for the data in this buffer
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data []Float // The slice should never reallocacte as `cap(data)` is respected.
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prev, next *buffer // `prev` contains older data, `next` newer data.
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archived bool // If true, this buffer is already archived
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@ -50,12 +51,13 @@ type buffer struct {
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*/
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}
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func newBuffer(ts, freq int64) *buffer {
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func newBuffer(ts, freq int64, unit string) *buffer {
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b := bufferPool.Get().(*buffer)
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b.frequency = freq
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b.start = ts - (freq / 2)
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b.prev = nil
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b.next = nil
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b.unit = unit
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b.archived = false
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b.closed = false
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b.data = b.data[:0]
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@ -74,7 +76,7 @@ func (b *buffer) write(ts int64, value Float) (*buffer, error) {
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// idx := int((ts - b.start + (b.frequency / 3)) / b.frequency)
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idx := int((ts - b.start) / b.frequency)
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if idx >= cap(b.data) {
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newbuf := newBuffer(ts, b.frequency)
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newbuf := newBuffer(ts, b.frequency, b.unit)
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newbuf.prev = b
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b.next = newbuf
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b.close()
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@ -412,7 +414,7 @@ func (m *MemoryStore) WriteToLevel(l *level, selector []string, ts int64, metric
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b := l.metrics[metric.mc.offset]
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if b == nil {
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// First write to this metric and level
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b = newBuffer(ts, metric.mc.Frequency)
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b = newBuffer(ts, metric.mc.Frequency, metric.Unit)
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l.metrics[metric.mc.offset] = b
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}
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@ -433,14 +435,15 @@ func (m *MemoryStore) WriteToLevel(l *level, selector []string, ts int64, metric
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// If the level does not hold the metric itself, the data will be aggregated recursively from the children.
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// The second and third return value are the actual from/to for the data. Those can be different from
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// the range asked for if no data was available.
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func (m *MemoryStore) Read(selector Selector, metric string, from, to int64) ([]Float, int64, int64, error) {
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func (m *MemoryStore) Read(selector Selector, metric string, from, to int64) ([]Float, int64, int64, string, error) {
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var unit string = ""
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if from > to {
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return nil, 0, 0, errors.New("invalid time range")
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return nil, 0, 0, "", errors.New("invalid time range")
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}
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minfo, ok := m.metrics[metric]
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if !ok {
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return nil, 0, 0, errors.New("unkown metric: " + metric)
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return nil, 0, 0, "", errors.New("unkown metric: " + metric)
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}
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n, data := 0, make([]Float, (to-from)/minfo.Frequency+1)
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@ -449,6 +452,7 @@ func (m *MemoryStore) Read(selector Selector, metric string, from, to int64) ([]
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if err != nil {
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return err
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}
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unit = b.unit
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if n == 0 {
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from, to = cfrom, cto
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@ -476,9 +480,9 @@ func (m *MemoryStore) Read(selector Selector, metric string, from, to int64) ([]
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})
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if err != nil {
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return nil, 0, 0, err
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return nil, 0, 0, "", err
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} else if n == 0 {
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return nil, 0, 0, errors.New("metric or host not found")
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return nil, 0, 0, "", errors.New("metric or host not found")
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} else if n > 1 {
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if minfo.Aggregation == AvgAggregation {
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normalize := 1. / Float(n)
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@ -486,11 +490,11 @@ func (m *MemoryStore) Read(selector Selector, metric string, from, to int64) ([]
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data[i] *= normalize
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}
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} else if minfo.Aggregation != SumAggregation {
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return nil, 0, 0, errors.New("invalid aggregation")
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return nil, 0, 0, "", errors.New("invalid aggregation")
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}
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}
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return data, from, to, nil
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return data, from, to, unit, nil
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}
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// Release all buffers for the selected level and all its children that contain only
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@ -28,12 +28,12 @@ func TestMemoryStoreBasics(t *testing.T) {
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}
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sel := Selector{{String: "testhost"}}
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adata, from, to, err := store.Read(sel, "a", start, start+count*frequency)
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if err != nil || from != start || to != start+count*frequency {
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adata, from, to, unit, err := store.Read(sel, "a", start, start+count*frequency)
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if err != nil || from != start || to != start+count*frequency || unit != "" {
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t.Error(err)
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return
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}
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bdata, _, _, err := store.Read(sel, "b", start, start+count*frequency)
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bdata, _, _, unit, err := store.Read(sel, "b", start, start+count*frequency)
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if err != nil {
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t.Error(err)
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return
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@ -83,23 +83,23 @@ func TestMemoryStoreTooMuchWrites(t *testing.T) {
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}
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end := start + int64(count)*frequency
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data, from, to, err := store.Read(Selector{{String: "test"}}, "a", start, end)
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if len(data) != count || from != start || to != end || err != nil {
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data, from, to, unit, err := store.Read(Selector{{String: "test"}}, "a", start, end)
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if len(data) != count || from != start || to != end || err != nil || unit != "" {
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t.Fatalf("a: err=%#v, from=%d, to=%d, data=%#v\n", err, from, to, data)
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}
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data, from, to, err = store.Read(Selector{{String: "test"}}, "b", start, end)
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if len(data) != count/2 || from != start || to != end || err != nil {
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data, from, to, unit, err = store.Read(Selector{{String: "test"}}, "b", start, end)
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if len(data) != count/2 || from != start || to != end || err != nil || unit != "" {
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t.Fatalf("b: err=%#v, from=%d, to=%d, data=%#v\n", err, from, to, data)
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}
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data, from, to, err = store.Read(Selector{{String: "test"}}, "c", start, end)
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if len(data) != count*2-1 || from != start || to != end-frequency/2 || err != nil {
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data, from, to, unit, err = store.Read(Selector{{String: "test"}}, "c", start, end)
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if len(data) != count*2-1 || from != start || to != end-frequency/2 || err != nil || unit != "" {
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t.Fatalf("c: err=%#v, from=%d, to=%d, data=%#v\n", err, from, to, data)
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}
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data, from, to, err = store.Read(Selector{{String: "test"}}, "d", start, end)
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if len(data) != count/3+1 || from != start || to != end+frequency*2 || err != nil {
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data, from, to, unit, err = store.Read(Selector{{String: "test"}}, "d", start, end)
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if len(data) != count/3+1 || from != start || to != end+frequency*2 || err != nil || unit != "" {
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t.Errorf("expected: err=nil, from=%d, to=%d, len(data)=%d\n", start, end+frequency*2, count/3)
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t.Fatalf("d: err=%#v, from=%d, to=%d, data=%#v\n", err, from, to, data)
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}
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@ -121,7 +121,7 @@ func TestMemoryStoreOutOfBounds(t *testing.T) {
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}
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sel := Selector{{String: "cluster"}, {String: "host"}, {String: "cpu"}}
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data, from, to, err := store.Read(sel, "a", 500, int64(toffset+count*60+500))
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data, from, to, unit, err := store.Read(sel, "a", 500, int64(toffset+count*60+500))
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if err != nil {
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t.Fatal(err)
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}
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@ -136,14 +136,14 @@ func TestMemoryStoreOutOfBounds(t *testing.T) {
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}
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testfrom, testlen := int64(100000000), int64(10000)
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data, from, to, err = store.Read(sel, "a", testfrom, testfrom+testlen)
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if len(data) != 0 || from != testfrom || to != testfrom || err != nil {
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data, from, to, unit, err = store.Read(sel, "a", testfrom, testfrom+testlen)
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if len(data) != 0 || from != testfrom || to != testfrom || err != nil || unit != "" {
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t.Fatal("Unexpected data returned when reading range after valid data")
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}
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testfrom, testlen = 0, 10
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data, from, to, err = store.Read(sel, "a", testfrom, testfrom+testlen)
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if len(data) != 0 || from/60 != int64(toffset)/60 || to/60 != int64(toffset)/60 || err != nil {
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data, from, to, unit, err = store.Read(sel, "a", testfrom, testfrom+testlen)
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if len(data) != 0 || from/60 != int64(toffset)/60 || to/60 != int64(toffset)/60 || err != nil || unit != "" {
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t.Fatal("Unexpected data returned when reading range before valid data")
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}
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}
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@ -169,7 +169,7 @@ func TestMemoryStoreMissingDatapoints(t *testing.T) {
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}
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sel := Selector{{String: "testhost"}}
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adata, _, _, err := store.Read(sel, "a", 0, int64(count))
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adata, _, _, _, err := store.Read(sel, "a", 0, int64(count))
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if err != nil {
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t.Error(err)
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return
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@ -219,7 +219,7 @@ func TestMemoryStoreAggregation(t *testing.T) {
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}
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}
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adata, from, to, err := store.Read(Selector{{String: "host0"}}, "a", int64(0), int64(count))
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adata, from, to, _, err := store.Read(Selector{{String: "host0"}}, "a", int64(0), int64(count))
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if err != nil {
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t.Error(err)
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return
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@ -352,7 +352,7 @@ func TestMemoryStoreArchive(t *testing.T) {
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}
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sel := Selector{{String: "cluster"}, {String: "host"}, {String: "cpu0"}}
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adata, from, to, err := store2.Read(sel, "a", 100, int64(100+count))
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adata, from, to, _, err := store2.Read(sel, "a", 100, int64(100+count))
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if err != nil {
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t.Error(err)
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return
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@ -398,7 +398,7 @@ func TestMemoryStoreFree(t *testing.T) {
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t.Fatal("two buffers expected to be released")
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}
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adata, from, to, err := store.Read(Selector{{String: "cluster"}, {String: "host"}, {String: "1"}}, "a", 0, int64(count))
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adata, from, to, _, err := store.Read(Selector{{String: "cluster"}, {String: "host"}, {String: "1"}}, "a", 0, int64(count))
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if err != nil {
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t.Fatal(err)
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}
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@ -451,7 +451,7 @@ func BenchmarkMemoryStoreConcurrentWrites(b *testing.B) {
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for g := 0; g < goroutines; g++ {
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host := fmt.Sprintf("host%d", g)
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sel := Selector{{String: "cluster"}, {String: host}, {String: "cpu0"}}
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adata, _, _, err := store.Read(sel, "a", 0, int64(count)*frequency)
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adata, _, _, _, err := store.Read(sel, "a", 0, int64(count)*frequency)
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if err != nil {
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b.Error(err)
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return
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@ -500,7 +500,7 @@ func BenchmarkMemoryStoreAggregation(b *testing.B) {
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b.StartTimer()
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for n := 0; n < b.N; n++ {
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data, from, to, err := store.Read(Selector{{String: "testcluster"}, {String: "host123"}}, "flops_any", 0, int64(count))
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data, from, to, _, err := store.Read(Selector{{String: "testcluster"}, {String: "host123"}}, "flops_any", 0, int64(count))
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if err != nil {
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b.Fatal(err)
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}
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