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