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Add prometheus serializer and use it in prometheus output (#6703)

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This commit is contained in:
Daniel Nelson
2019-11-26 15:46:31 -08:00
committed by GitHub
parent 8f71bbaa48
commit 80c5edd48e
20 changed files with 2516 additions and 1144 deletions
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5
plugins/outputs/file/README.md
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@@ -9,6 +9,11 @@ This plugin writes telegraf metrics to files
## Files to write to, "stdout" is a specially handled file.
files = ["stdout", "/tmp/metrics.out"]
## Use batch serialization format instead of line based delimiting. The
## batch format allows for the production of non line based output formats and
## may more effiently encode and write metrics.
# use_batch_format = false
## The file will be rotated after the time interval specified. When set
## to 0 no time based rotation is performed.
# rotation_interval = "0h"

30
plugins/outputs/file/file.go
View File

@@ -3,7 +3,6 @@ package file
import (
"fmt"
"io"
"log"
"os"
"github.com/influxdata/telegraf"
@@ -18,6 +17,8 @@ type File struct {
RotationInterval internal.Duration `toml:"rotation_interval"`
RotationMaxSize internal.Size `toml:"rotation_max_size"`
RotationMaxArchives int `toml:"rotation_max_archives"`
UseBatchFormat bool `toml:"use_batch_format"`
Log telegraf.Logger `toml:"-"`
writer io.Writer
closers []io.Closer
@@ -28,6 +29,11 @@ var sampleConfig = `
## Files to write to, "stdout" is a specially handled file.
files = ["stdout", "/tmp/metrics.out"]
## Use batch serialization format instead of line based delimiting. The
## batch format allows for the production of non line based output formats and
## may more effiently encode metric groups.
# use_batch_format = false
## The file will be rotated after the time interval specified. When set
## to 0 no time based rotation is performed.
# rotation_interval = "0d"
@@ -98,15 +104,27 @@ func (f *File) Description() string {
func (f *File) Write(metrics []telegraf.Metric) error {
var writeErr error = nil
for _, metric := range metrics {
b, err := f.serializer.Serialize(metric)
if f.UseBatchFormat {
octets, err := f.serializer.SerializeBatch(metrics)
if err != nil {
log.Printf("D! [outputs.file] Could not serialize metric: %v", err)
f.Log.Errorf("Could not serialize metric: %v", err)
}
_, err = f.writer.Write(b)
_, err = f.writer.Write(octets)
if err != nil {
writeErr = fmt.Errorf("E! [outputs.file] failed to write message: %v", err)
f.Log.Errorf("Error writing to file: %v", err)
}
} else {
for _, metric := range metrics {
b, err := f.serializer.Serialize(metric)
if err != nil {
f.Log.Debugf("Could not serialize metric: %v", err)
}
_, err = f.writer.Write(b)
if err != nil {
writeErr = fmt.Errorf("E! [outputs.file] failed to write message: %v", err)
}
}
}