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vsphere-influxdb-go/vendor/github.com/influxdata/influxdb/services/continuous_querier/config.go

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2017-10-25 22:52:40 +02:00
package continuous_querier
import (
"errors"
"time"
"github.com/influxdata/influxdb/monitor/diagnostics"
"github.com/influxdata/influxdb/toml"
)
// Default values for aspects of interval computation.
const (
// The default value of how often to check whether any CQs need to be run.
DefaultRunInterval = time.Second
)
// Config represents a configuration for the continuous query service.
type Config struct {
// Enables logging in CQ service to display when CQ's are processed and how many points are wrote.
LogEnabled bool `toml:"log-enabled"`
// If this flag is set to false, both the brokers and data nodes should ignore any CQ processing.
Enabled bool `toml:"enabled"`
// Run interval for checking continuous queries. This should be set to the least common factor
// of the interval for running continuous queries. If you only aggregate continuous queries
// every minute, this should be set to 1 minute. The default is set to '1s' so the interval
// is compatible with most aggregations.
RunInterval toml.Duration `toml:"run-interval"`
}
// NewConfig returns a new instance of Config with defaults.
func NewConfig() Config {
return Config{
LogEnabled: true,
Enabled: true,
RunInterval: toml.Duration(DefaultRunInterval),
}
}
// Validate returns an error if the Config is invalid.
func (c Config) Validate() error {
if !c.Enabled {
return nil
}
// TODO: Should we enforce a minimum interval?
// Polling every nanosecond, for instance, will greatly impact performance.
if c.RunInterval <= 0 {
return errors.New("run-interval must be positive")
}
return nil
}
// Diagnostics returns a diagnostics representation of a subset of the Config.
func (c Config) Diagnostics() (*diagnostics.Diagnostics, error) {
if !c.Enabled {
return diagnostics.RowFromMap(map[string]interface{}{
"enabled": false,
}), nil
}
return diagnostics.RowFromMap(map[string]interface{}{
"enabled": true,
"run-interval": c.RunInterval,
}), nil
}