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Adding gauge for number of open head chunks.

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Fixes #1710
This commit is contained in:
Jeremy Meulemans 2017-02-16 17:55:42 -06:00
parent e7c8a612de
commit f70b52d0b6
1 changed files with 23 additions and 0 deletions
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23
storage/local/storage.go
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@ -180,6 +180,7 @@ type MemorySeriesStorage struct {
persistErrors prometheus.Counter persistErrors prometheus.Counter
queuedChunksToPersist prometheus.Counter queuedChunksToPersist prometheus.Counter
numSeries prometheus.Gauge numSeries prometheus.Gauge
numHeadChunks prometheus.Gauge
dirtySeries prometheus.Gauge dirtySeries prometheus.Gauge
seriesOps *prometheus.CounterVec seriesOps *prometheus.CounterVec
ingestedSamplesCount prometheus.Counter ingestedSamplesCount prometheus.Counter
@ -254,6 +255,12 @@ func NewMemorySeriesStorage(o *MemorySeriesStorageOptions) *MemorySeriesStorage
Name: "memory_series", Name: "memory_series",
Help: "The current number of series in memory.", Help: "The current number of series in memory.",
}), }),
numHeadChunks: prometheus.NewGauge(prometheus.GaugeOpts{
Namespace: namespace,
Subsystem: subsystem,
Name: "num_head_chunks_open",
Help: "The current number of open head chunks.",
}),
dirtySeries: prometheus.NewGauge(prometheus.GaugeOpts{ dirtySeries: prometheus.NewGauge(prometheus.GaugeOpts{
Namespace: namespace, Namespace: namespace,
Subsystem: subsystem, Subsystem: subsystem,
@ -372,6 +379,16 @@ func (s *MemorySeriesStorage) Start() (err error) {
log.Info("Loading series map and head chunks...") log.Info("Loading series map and head chunks...")
s.fpToSeries, s.numChunksToPersist, err = p.loadSeriesMapAndHeads() s.fpToSeries, s.numChunksToPersist, err = p.loadSeriesMapAndHeads()
openHeadCount := 0
for fp := range s.fpToSeries.fpIter() {
if series, ok := s.fpToSeries.get(fp); ok {
if !series.headChunkClosed {
openHeadCount += 1
}
}
}
s.numHeadChunks.Set(float64(openHeadCount))
if err != nil { if err != nil {
return err return err
} }
@ -977,6 +994,9 @@ func (s *MemorySeriesStorage) getOrCreateSeries(fp model.Fingerprint, m model.Me
} }
s.fpToSeries.put(fp, series) s.fpToSeries.put(fp, series)
s.numSeries.Inc() s.numSeries.Inc()
if !series.headChunkClosed {
s.numHeadChunks.Inc()
}
} }
return series, nil return series, nil
} }
@ -1383,6 +1403,7 @@ func (s *MemorySeriesStorage) maintainMemorySeries(
} }
if closed { if closed {
s.incNumChunksToPersist(1) s.incNumChunksToPersist(1)
s.numHeadChunks.Dec()
} }
seriesWasDirty := series.dirty seriesWasDirty := series.dirty
@ -1783,6 +1804,7 @@ func (s *MemorySeriesStorage) Describe(ch chan<- *prometheus.Desc) {
ch <- maxChunksToPersistDesc ch <- maxChunksToPersistDesc
ch <- numChunksToPersistDesc ch <- numChunksToPersistDesc
ch <- s.numSeries.Desc() ch <- s.numSeries.Desc()
ch <- s.numHeadChunks.Desc()
ch <- s.dirtySeries.Desc() ch <- s.dirtySeries.Desc()
s.seriesOps.Describe(ch) s.seriesOps.Describe(ch)
ch <- s.ingestedSamplesCount.Desc() ch <- s.ingestedSamplesCount.Desc()
@ -1812,6 +1834,7 @@ func (s *MemorySeriesStorage) Collect(ch chan<- prometheus.Metric) {
float64(s.getNumChunksToPersist()), float64(s.getNumChunksToPersist()),
) )
ch <- s.numSeries ch <- s.numSeries
ch <- s.numHeadChunks
ch <- s.dirtySeries ch <- s.dirtySeries
s.seriesOps.Collect(ch) s.seriesOps.Collect(ch)
ch <- s.ingestedSamplesCount ch <- s.ingestedSamplesCount