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Implement telegraf's own full metric type

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main reasons behind this:
- make adding/removing tags cheap
- make adding/removing fields cheap
- make parsing cheaper
- make parse -> decorate -> write out bytes metric flow much faster

Refactor serializer to use byte buffer
This commit is contained in:
Cameron Sparr
2016-11-22 12:51:57 +00:00
parent 332f678afb
commit db7a4b24b6
40 changed files with 1376 additions and 398 deletions
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10
plugins/serializers/json/json.go
View File

@@ -9,9 +9,7 @@ import (
type JsonSerializer struct {
}
func (s *JsonSerializer) Serialize(metric telegraf.Metric) ([]string, error) {
out := []string{}
func (s *JsonSerializer) Serialize(metric telegraf.Metric) ([]byte, error) {
m := make(map[string]interface{})
m["tags"] = metric.Tags()
m["fields"] = metric.Fields()
@@ -19,9 +17,9 @@ func (s *JsonSerializer) Serialize(metric telegraf.Metric) ([]string, error) {
m["timestamp"] = metric.UnixNano() / 1000000000
serialized, err := ejson.Marshal(m)
if err != nil {
return []string{}, err
return []byte{}, err
}
out = append(out, string(serialized))
serialized = append(serialized, '\n')
return out, nil
return serialized, nil
}

9
plugins/serializers/json/json_test.go
View File

@@ -8,6 +8,7 @@ import (
"github.com/stretchr/testify/assert"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/metric"
)
func TestSerializeMetricFloat(t *testing.T) {
@@ -18,7 +19,7 @@ func TestSerializeMetricFloat(t *testing.T) {
fields := map[string]interface{}{
"usage_idle": float64(91.5),
}
m, err := telegraf.NewMetric("cpu", tags, fields, now)
m, err := metric.New("cpu", tags, fields, now)
assert.NoError(t, err)
s := JsonSerializer{}
@@ -36,7 +37,7 @@ func TestSerializeMetricInt(t *testing.T) {
fields := map[string]interface{}{
"usage_idle": int64(90),
}
m, err := telegraf.NewMetric("cpu", tags, fields, now)
m, err := metric.New("cpu", tags, fields, now)
assert.NoError(t, err)
s := JsonSerializer{}
@@ -55,7 +56,7 @@ func TestSerializeMetricString(t *testing.T) {
fields := map[string]interface{}{
"usage_idle": "foobar",
}
m, err := telegraf.NewMetric("cpu", tags, fields, now)
m, err := metric.New("cpu", tags, fields, now)
assert.NoError(t, err)
s := JsonSerializer{}
@@ -75,7 +76,7 @@ func TestSerializeMultiFields(t *testing.T) {
"usage_idle": int64(90),
"usage_total": 8559615,
}
m, err := telegraf.NewMetric("cpu", tags, fields, now)
m, err := metric.New("cpu", tags, fields, now)
assert.NoError(t, err)
s := JsonSerializer{}