storj/cmd/statreceiver/parser.go
Jeff Wendling 7999d24f81 all: use monkit v3
this commit updates our monkit dependency to the v3 version where
it outputs in an influx style. this makes discovery much easier
as many tools are built to look at it this way.

graphite and rothko will suffer some due to no longer being a tree
based on dots. hopefully time will exist to update rothko to
index based on the new metric format.

it adds an influx output for the statreceiver so that we can
write to influxdb v1 or v2 directly.

Change-Id: Iae9f9494a6d29cfbd1f932a5e71a891b490415ff
2020-02-05 23:53:17 +00:00

68 lines
1.2 KiB
Go

// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.
package main
import (
"log"
"sync"
"time"
"github.com/zeebo/admission/v2/admproto"
"storj.io/common/memory"
)
// Parser is a PacketDest that sends data to a MetricDest
type Parser struct {
dest MetricDest
scratch sync.Pool
}
// NewParser creates a Parser. It sends metrics to dest.
func NewParser(dest MetricDest) *Parser {
return &Parser{
dest: dest,
scratch: sync.Pool{
New: func() interface{} {
var x [10 * memory.KB]byte
return &x
},
},
}
}
// Packet implements PacketDest
func (p *Parser) Packet(data []byte, ts time.Time) (err error) {
data, err = admproto.CheckChecksum(data)
if err != nil {
return err
}
scratch := p.scratch.Get().(*[10 * memory.KB]byte)
defer p.scratch.Put(scratch)
r := admproto.NewReaderWith((*scratch)[:])
data, appb, instb, err := r.Begin(data)
if err != nil {
return err
}
app, inst := string(appb), string(instb)
var key []byte
var value float64
for len(data) > 0 {
data, key, value, err = r.Next(data)
if err != nil {
return err
}
err = p.dest.Metric(app, inst, key, value, ts)
if err != nil {
log.Printf("failed to write metric: %v", err)
continue
}
}
return nil
}