// demonstrates how to run oomparser.OomParser to get OomInstance information
func main() {
flag.Parse()
// out is a user-provided channel from which the user can read incoming
// OomInstance objects
outStream := make(chan *oomparser.OomInstance)
oomLog, err := oomparser.New()
if err != nil {
glog.Infof("Couldn't make a new oomparser. %v", err)
} else {
go oomLog.StreamOoms(outStream)
// demonstration of how to get oomLog's list of oomInstances or access
// the user-declared oomInstance channel, here called outStream
for oomInstance := range outStream {
glog.Infof("Reading the buffer. Output is %v", oomInstance)
}
}
}
func (self *manager) watchForNewOoms() error {
glog.Infof("Started watching for new ooms in manager")
outStream := make(chan *oomparser.OomInstance, 10)
oomLog, err := oomparser.New()
if err != nil {
return err
}
go oomLog.StreamOoms(outStream)
go func() {
for oomInstance := range outStream {
// Surface OOM and OOM kill events.
newEvent := &info.Event{
ContainerName: oomInstance.ContainerName,
Timestamp: oomInstance.TimeOfDeath,
EventType: info.EventOom,
}
err := self.eventHandler.AddEvent(newEvent)
if err != nil {
glog.Errorf("failed to add OOM event for %q: %v", oomInstance.ContainerName, err)
}
glog.V(3).Infof("Created an OOM event in container %q at %v", oomInstance.ContainerName, oomInstance.TimeOfDeath)
newEvent = &info.Event{
ContainerName: oomInstance.VictimContainerName,
Timestamp: oomInstance.TimeOfDeath,
EventType: info.EventOomKill,
EventData: info.EventData{
OomKill: &info.OomKillEventData{
Pid: oomInstance.Pid,
ProcessName: oomInstance.ProcessName,
},
},
}
err = self.eventHandler.AddEvent(newEvent)
if err != nil {
glog.Errorf("failed to add OOM kill event for %q: %v", oomInstance.ContainerName, err)
}
}
}()
return nil
}