func (self *DetectorConf) Validate() error {
glog.Info("Validating DetectorConf ", self)
err := validator.Validate(self)
if err != nil {
return err
}
for _, f := range self.Fingerprinters {
err = f.Validate()
if err != nil {
return err
}
}
return nil
}
func (self *AlertsManager) processQueries() {
for query := range self.queryQueue {
glog.V(2).Info("Executing query:", query)
windows, err := self.engine.GetWindows(query.query)
if err != nil {
glog.Errorf("Failed to execute query: '%s' %s", query, err)
continue
}
glog.Info(windows)
for _, w := range windows {
sum := 0.0
for _, point := range w.Data {
sum += point
}
glog.V(1).Info("Alert Query total ", sum)
if sum > query.threshold {
for _, n := range query.notifiers {
n.Notify(query.message, w)
}
}
}
}
}
func (self *App) Run() (err error) {
glog.Info("Starting app")
glog.Info("Setup signal handler")
go self.signalHandler()
glog.Info("Setup Engine")
self.engine, err = self.config.EngineConf.GetEngine()
if err != nil {
return
}
err = self.engine.Initialize()
if err != nil {
return
}
glog.Info("Setup Mapper")
detectorMatchers := make([]*DetectorMatcher, len(self.config.Mappings))
for i, mapping := range self.config.Mappings {
namePattern, err := regexp.Compile(mapping.Name)
if err != nil {
return fmt.Errorf("Error parsing regexp: %s: %s", mapping.Name, err)
}
tagPatterns := make(map[string]*regexp.Regexp, len(mapping.Tags))
for tag, pattern := range mapping.Tags {
r, err := regexp.Compile(pattern)
if err != nil {
return fmt.Errorf("Error parsing regexp: %s: %s", pattern, err)
}
tagPatterns[tag] = r
}
fingerprinters := make([]Fingerprinter, len(mapping.Detector.Fingerprinters))
for i, fp := range mapping.Detector.Fingerprinters {
f, err := fp.GetFingerprinter()
if err != nil {
return fmt.Errorf("Error creating Fingerprinter: %s", err)
}
fingerprinters[i] = f
}
detectorBuilder := NewDetectorBuilder(
mapping.Detector.NormalCount,
mapping.Detector.Consensus,
mapping.Detector.MinSupport,
mapping.Detector.ErrorTolerance,
fingerprinters,
)
glog.V(1).Infof("Created detector builder: %v", mapping.Detector)
matcher := NewDetectorMatcher(namePattern, tagPatterns, detectorBuilder)
glog.V(1).Infof("Created detector matcher: %v", matcher)
detectorMatchers[i] = matcher
}
detectorMappers := make([]*DetectorMapper, 0)
self.mapper = NewMapper(detectorMappers, detectorMatchers)
self.Stats.MapperStats = &self.mapper.Stats
glog.Info("Setup Manager")
scheduledDataQueries := make([]*scheduledDataQuery, len(self.config.Schedules))
for i, sc := range self.config.Schedules {
builder, err := self.engine.NewQueryBuilder(sc.Query, sc.GroupByInterval)
if err != nil {
return fmt.Errorf("Invalid query string: '%s', %s", sc.Query, err)
}
q := &scheduledDataQuery{
sq: NewScheduledQuery(
builder,
sc.Delay,
sc.Period,
),
tags: sc.Tags,
}
scheduledDataQueries[i] = q
}
self.manager = NewManager(self.mapper, self.engine, scheduledDataQueries)
glog.Info("Starting Manager...")
self.manager.Start()
glog.Infof("Starting APIServer on :%d", self.config.APIPort)
self.apiServer = NewAPIServer(self, self.config.APIPort)
self.apiServer.Start()
glog.Infof("Starting Alert Manger...")
scheduledAlertQueries := make([]*scheduledAlertQuery, len(self.config.Alerts))
for i, ac := range self.config.Alerts {
builder, err := self.engine.NewQueryBuilder(ac.Query, ac.GroupByInterval)
if err != nil {
return fmt.Errorf("Invalid query string: '%s', %s", ac.Query, err)
}
notifiers := make([]Notifier, len(ac.Notifiers))
for i, nc := range ac.Notifiers {
n, err := nc.GetNotifier()
if err != nil {
return fmt.Errorf("Invalid Notifier for query: '%s' Err: %s", ac.Query, err)
}
notifiers[i] = n
}
q := &scheduledAlertQuery{
sq: NewScheduledQuery(
builder,
ac.Delay,
ac.Period,
),
threshold: ac.Threshold,
notifiers: notifiers,
message: ac.Message,
}
scheduledAlertQueries[i] = q
}
self.alertsManager = NewAlertsManager(self.engine, scheduledAlertQueries)
self.alertsManager.Start()
// Wait for shutdown
<-self.shutdownChan
// Begin shutdown
self.manager.Stop()
self.apiServer.Stop()
glog.Info("App shutdown")
return
}
func (self *App) shutdownHandler() {
self.shutdownChan <- true
glog.Info("App shutdown handler complete")
}