// handleIgnoreOlder handles states which fall under ignore older
// Based on the state information it is decided if the state information has to be updated or not
func (p *ProspectorLog) handleIgnoreOlder(lastState, newState file.State) error {
logp.Debug("prospector", "Ignore file because ignore_older reached: %s", newState.Source)
if !lastState.IsEmpty() {
if !lastState.Finished {
logp.Info("File is falling under ignore_older before harvesting is finished. Adjust your close_* settings: %s", newState.Source)
}
// Old state exist, no need to update it
return nil
}
// Make sure file is not falling under clean_inactive yet
if p.isCleanInactive(newState) {
logp.Debug("prospector", "Do not write state for ignore_older because clean_inactive reached")
return nil
}
// Write state for ignore_older file as none exists yet
newState.Finished = true
err := p.Prospector.updateState(input.NewEvent(newState))
if err != nil {
return err
}
return nil
}
// handleIgnoreOlder handles states which fall under ignore older
// Based on the state information it is decided if the state information has to be updated or not
func (p *ProspectorLog) handleIgnoreOlder(lastState, newState file.State) error {
logp.Debug("prospector", "Ignore file because ignore_older reached: %s", newState.Source)
if !lastState.IsEmpty() {
if !lastState.Finished {
logp.Info("File is falling under ignore_older before harvesting is finished. Adjust your close_* settings: %s", newState.Source)
}
// Old state exist, no need to update it
return nil
}
// Make sure file is not falling under clean_inactive yet
if p.isCleanInactive(newState) {
logp.Debug("prospector", "Do not write state for ignore_older because clean_inactive reached")
return nil
}
// Set offset to end of file to be consistent with files which were harvested before
// See https://github.com/elastic/beats/pull/2907
newState.Offset = newState.Fileinfo.Size()
// Write state for ignore_older file as none exists yet
newState.Finished = true
err := p.Prospector.updateState(input.NewEvent(newState))
if err != nil {
return err
}
return nil
}
// startHarvester starts a new harvester with the given offset
// In case the HarvesterLimit is reached, an error is returned
func (p *Prospector) startHarvester(state file.State, offset int64) error {
if p.config.HarvesterLimit > 0 && atomic.LoadUint64(&p.harvesterCounter) >= p.config.HarvesterLimit {
harvesterSkipped.Add(1)
return fmt.Errorf("Harvester limit reached.")
}
state.Offset = offset
// Set state to "not" finished to indicate that a harvester is running
state.Finished = false
// Create harvester with state
h, err := p.createHarvester(state)
if err != nil {
return err
}
reader, err := h.Setup()
if err != nil {
return fmt.Errorf("Error setting up harvester: %s", err)
}
// State is directly updated and not through channel to make state update immediate
// State is only updated after setup is completed successfully
err = p.updateState(input.NewEvent(state))
if err != nil {
return err
}
p.wg.Add(1)
// startHarvester is not run concurrently, but atomic operations are need for the decrementing of the counter
// inside the following go routine
atomic.AddUint64(&p.harvesterCounter, 1)
go func() {
defer func() {
atomic.AddUint64(&p.harvesterCounter, ^uint64(0))
p.wg.Done()
}()
// Starts harvester and picks the right type. In case type is not set, set it to defeault (log)
h.Harvest(reader)
}()
return nil
}
