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// SPDX-License-Identifier: GPL-3.0-or-later
package cockroachdb
import (
_ "embed"
"errors"
"time"
"github.com/netdata/netdata/go/go.d.plugin/agent/module"
"github.com/netdata/netdata/go/go.d.plugin/pkg/prometheus"
"github.com/netdata/netdata/go/go.d.plugin/pkg/web"
)
//go:embed "config_schema.json"
var configSchema string
// DefaultMetricsSampleInterval hard coded to 10
// https://github.com/cockroachdb/cockroach/blob/d5ffbf76fb4c4ef802836529188e4628476879bd/pkg/server/config.go#L56-L58
const dbSamplingInterval = 10
func init() {
module.Register("cockroachdb", module.Creator{
JobConfigSchema: configSchema,
Defaults: module.Defaults{
UpdateEvery: dbSamplingInterval,
},
Create: func() module.Module { return New() },
})
}
func New() *CockroachDB {
return &CockroachDB{
Config: Config{
HTTP: web.HTTP{
Request: web.Request{
URL: "http://127.0.0.1:8080/_status/vars",
},
Client: web.Client{
Timeout: web.Duration(time.Second),
},
},
},
charts: charts.Copy(),
}
}
type Config struct {
web.HTTP `yaml:",inline" json:""`
UpdateEvery int `yaml:"update_every" json:"update_every"`
}
type CockroachDB struct {
module.Base
Config `yaml:",inline" json:""`
charts *Charts
prom prometheus.Prometheus
}
func (c *CockroachDB) Configuration() any {
return c.Config
}
func (c *CockroachDB) Init() error {
if err := c.validateConfig(); err != nil {
c.Errorf("error on validating config: %v", err)
return err
}
prom, err := c.initPrometheusClient()
if err != nil {
c.Error(err)
return err
}
c.prom = prom
if c.UpdateEvery < dbSamplingInterval {
c.Warningf("'update_every'(%d) is lower then CockroachDB default sampling interval (%d)",
c.UpdateEvery, dbSamplingInterval)
}
return nil
}
func (c *CockroachDB) Check() error {
mx, err := c.collect()
if err != nil {
c.Error(err)
return err
}
if len(mx) == 0 {
return errors.New("no metrics collected")
}
return nil
}
func (c *CockroachDB) Charts() *Charts {
return c.charts
}
func (c *CockroachDB) Collect() map[string]int64 {
mx, err := c.collect()
if err != nil {
c.Error(err)
}
if len(mx) == 0 {
return nil
}
return mx
}
func (c *CockroachDB) Cleanup() {
if c.prom != nil && c.prom.HTTPClient() != nil {
c.prom.HTTPClient().CloseIdleConnections()
}
}
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