cc-metric-collector/sinks/gangliaSink.go

125 lines
3.4 KiB
Go
Raw Normal View History

package sinks
import (
"encoding/json"
"errors"
"fmt"
"strings"
2022-01-30 15:25:57 +01:00
// "time"
"os/exec"
2022-01-30 15:25:57 +01:00
cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
)
const GMETRIC_EXEC = `gmetric`
2022-02-08 18:04:08 +01:00
const GMETRIC_CONFIG = `/etc/ganglia/gmond.conf`
type GangliaSinkConfig struct {
defaultSinkConfig
2022-02-08 18:04:08 +01:00
GmetricPath string `json:"gmetric_path,omitempty"`
GmetricConfig string `json:"gmetric_config,omitempty"`
AddGangliaGroup bool `json:"add_ganglia_group,omitempty"`
AddTagsAsDesc bool `json:"add_tags_as_desc,omitempty"`
ClusterName string `json:"cluster_name,omitempty"`
AddTypeToName bool `json:"add_type_to_name,omitempty"`
AddUnits bool `json:"add_units,omitempty"`
}
type GangliaSink struct {
sink
2022-02-08 18:04:08 +01:00
gmetric_path string
gmetric_config string
config GangliaSinkConfig
}
2022-01-30 15:25:57 +01:00
func (s *GangliaSink) Write(point lp.CCMetric) error {
var err error = nil
//var tagsstr []string
2022-01-30 15:25:57 +01:00
var argstr []string
// Get metric config (type, value, ... in suitable format)
conf := GetCommonGangliaConfig(point)
if len(conf.Type) == 0 {
conf = GetGangliaConfig(point)
}
if len(conf.Type) == 0 {
return fmt.Errorf("metric %q (Ganglia name %q) has no 'value' field", point.Name(), conf.Name)
}
if s.config.AddGangliaGroup {
argstr = append(argstr, fmt.Sprintf("--group=%s", conf.Group))
}
if s.config.AddUnits && len(conf.Unit) > 0 {
argstr = append(argstr, fmt.Sprintf("--units=%s", conf.Unit))
}
if len(s.config.ClusterName) > 0 {
argstr = append(argstr, fmt.Sprintf("--cluster=%s", s.config.ClusterName))
}
// if s.config.AddTagsAsDesc && len(tagsstr) > 0 {
// argstr = append(argstr, fmt.Sprintf("--desc=%q", strings.Join(tagsstr, ",")))
// }
2022-02-08 18:04:08 +01:00
if len(s.gmetric_config) > 0 {
argstr = append(argstr, fmt.Sprintf("--conf=%s", s.gmetric_config))
}
if s.config.AddTypeToName {
argstr = append(argstr, fmt.Sprintf("--name=%s", GangliaMetricName(point)))
} else {
argstr = append(argstr, fmt.Sprintf("--name=%s", conf.Name))
}
argstr = append(argstr, fmt.Sprintf("--slope=%s", conf.Slope))
argstr = append(argstr, fmt.Sprintf("--value=%s", conf.Value))
argstr = append(argstr, fmt.Sprintf("--type=%s", conf.Type))
argstr = append(argstr, fmt.Sprintf("--tmax=%d", conf.Tmax))
cclog.ComponentDebug(s.name, s.gmetric_path, strings.Join(argstr, " "))
2022-02-08 18:04:08 +01:00
command := exec.Command(s.gmetric_path, argstr...)
command.Wait()
_, err = command.Output()
return err
}
func (s *GangliaSink) Flush() error {
return nil
}
func (s *GangliaSink) Close() {
}
func NewGangliaSink(name string, config json.RawMessage) (Sink, error) {
s := new(GangliaSink)
s.name = fmt.Sprintf("GangliaSink(%s)", name)
s.config.AddTagsAsDesc = false
s.config.AddGangliaGroup = false
if len(config) > 0 {
err := json.Unmarshal(config, &s.config)
if err != nil {
cclog.ComponentError(s.name, "Error reading config for", s.name, ":", err.Error())
return nil, err
}
}
s.gmetric_path = ""
s.gmetric_config = ""
if len(s.config.GmetricPath) > 0 {
p, err := exec.LookPath(s.config.GmetricPath)
if err == nil {
s.gmetric_path = p
}
}
if len(s.gmetric_path) == 0 {
p, err := exec.LookPath(string(GMETRIC_EXEC))
if err == nil {
s.gmetric_path = p
}
}
if len(s.gmetric_path) == 0 {
return nil, errors.New("cannot find executable 'gmetric'")
}
if len(s.config.GmetricConfig) > 0 {
s.gmetric_config = s.config.GmetricConfig
}
return s, nil
}