mirror of
https://github.com/ClusterCockpit/cc-metric-collector.git
synced 2024-11-10 04:27:25 +01:00
be20f956c2
* InfiniBandCollector: Scale raw readings from octets to bytes * Fix clock frequency coming from LikwidCollector and update docs * Build DEB package for Ubuntu 20.04 for releases * Fix memstat collector with numa_stats option * Remove useless prints from MemstatCollector * Replace ioutils with os and io (#87) * Use lower case for error strings in RocmSmiCollector * move maybe-usable-by-other-cc-components to pkg. Fix all files to use the new paths (#88) * Add collector for monitoring the execution of cc-metric-collector itself (#81) * Add collector to monitor execution of cc-metric-collector itself * Register SelfCollector * Fix import paths for moved packages
93 lines
2.1 KiB
Go
93 lines
2.1 KiB
Go
package receivers
|
|
|
|
import (
|
|
"encoding/json"
|
|
"errors"
|
|
"fmt"
|
|
"time"
|
|
|
|
cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
|
|
lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
|
|
influx "github.com/influxdata/line-protocol"
|
|
nats "github.com/nats-io/nats.go"
|
|
)
|
|
|
|
type NatsReceiverConfig struct {
|
|
Type string `json:"type"`
|
|
Addr string `json:"address"`
|
|
Port string `json:"port"`
|
|
Subject string `json:"subject"`
|
|
}
|
|
|
|
type NatsReceiver struct {
|
|
receiver
|
|
nc *nats.Conn
|
|
handler *influx.MetricHandler
|
|
parser *influx.Parser
|
|
meta map[string]string
|
|
config NatsReceiverConfig
|
|
}
|
|
|
|
var DefaultTime = func() time.Time {
|
|
return time.Unix(42, 0)
|
|
}
|
|
|
|
func (r *NatsReceiver) Start() {
|
|
cclog.ComponentDebug(r.name, "START")
|
|
r.nc.Subscribe(r.config.Subject, r._NatsReceive)
|
|
}
|
|
|
|
func (r *NatsReceiver) _NatsReceive(m *nats.Msg) {
|
|
metrics, err := r.parser.Parse(m.Data)
|
|
if err == nil {
|
|
for _, m := range metrics {
|
|
y := lp.FromInfluxMetric(m)
|
|
for k, v := range r.meta {
|
|
y.AddMeta(k, v)
|
|
}
|
|
if r.sink != nil {
|
|
r.sink <- y
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func (r *NatsReceiver) Close() {
|
|
if r.nc != nil {
|
|
cclog.ComponentDebug(r.name, "CLOSE")
|
|
r.nc.Close()
|
|
}
|
|
}
|
|
|
|
func NewNatsReceiver(name string, config json.RawMessage) (Receiver, error) {
|
|
r := new(NatsReceiver)
|
|
r.name = fmt.Sprintf("NatsReceiver(%s)", name)
|
|
r.config.Addr = nats.DefaultURL
|
|
r.config.Port = "4222"
|
|
if len(config) > 0 {
|
|
err := json.Unmarshal(config, &r.config)
|
|
if err != nil {
|
|
cclog.ComponentError(r.name, "Error reading config:", err.Error())
|
|
return nil, err
|
|
}
|
|
}
|
|
if len(r.config.Addr) == 0 ||
|
|
len(r.config.Port) == 0 ||
|
|
len(r.config.Subject) == 0 {
|
|
return nil, errors.New("not all configuration variables set required by NatsReceiver")
|
|
}
|
|
r.meta = map[string]string{"source": r.name}
|
|
uri := fmt.Sprintf("%s:%s", r.config.Addr, r.config.Port)
|
|
cclog.ComponentDebug(r.name, "NewNatsReceiver", uri, "Subject", r.config.Subject)
|
|
if nc, err := nats.Connect(uri); err == nil {
|
|
r.nc = nc
|
|
} else {
|
|
r.nc = nil
|
|
return nil, err
|
|
}
|
|
r.handler = influx.NewMetricHandler()
|
|
r.parser = influx.NewParser(r.handler)
|
|
r.parser.SetTimeFunc(DefaultTime)
|
|
return r, nil
|
|
}
|