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head: track number of series not found errors in metric

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This commit is contained in:
Fabian Reinartz 2017-10-12 15:25:12 +02:00
parent 91a154d228
commit 065f42f58c
1 changed files with 7 additions and 0 deletions
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7
head.go
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@ -74,6 +74,7 @@ type headMetrics struct {
series prometheus.Gauge series prometheus.Gauge
seriesCreated prometheus.Counter seriesCreated prometheus.Counter
seriesRemoved prometheus.Counter seriesRemoved prometheus.Counter
seriesNotFound prometheus.Counter
chunks prometheus.Gauge chunks prometheus.Gauge
chunksCreated prometheus.Gauge chunksCreated prometheus.Gauge
chunksRemoved prometheus.Gauge chunksRemoved prometheus.Gauge
@ -103,6 +104,10 @@ func newHeadMetrics(h *Head, r prometheus.Registerer) *headMetrics {
Name: "tsdb_head_series_removed_total", Name: "tsdb_head_series_removed_total",
Help: "Total number of series removed in the head", Help: "Total number of series removed in the head",
}) })
m.seriesNotFound = prometheus.NewCounter(prometheus.CounterOpts{
Name: "tsdb_head_series_not_found",
Help: "Total number of requests for series that were not found.",
})
m.chunks = prometheus.NewGauge(prometheus.GaugeOpts{ m.chunks = prometheus.NewGauge(prometheus.GaugeOpts{
Name: "tsdb_head_chunks", Name: "tsdb_head_chunks",
Help: "Total number of chunks in the head block.", Help: "Total number of chunks in the head block.",
@ -149,6 +154,7 @@ func newHeadMetrics(h *Head, r prometheus.Registerer) *headMetrics {
m.series, m.series,
m.seriesCreated, m.seriesCreated,
m.seriesRemoved, m.seriesRemoved,
m.seriesNotFound,
m.minTime, m.minTime,
m.maxTime, m.maxTime,
m.gcDuration, m.gcDuration,
@ -852,6 +858,7 @@ func (h *headIndexReader) Series(ref uint64, lbls *labels.Labels, chks *[]ChunkM
s := h.head.series.getByID(ref) s := h.head.series.getByID(ref)
if s == nil { if s == nil {
h.head.metrics.seriesNotFound.Inc()
return ErrNotFound return ErrNotFound
} }
*lbls = append((*lbls)[:0], s.lset...) *lbls = append((*lbls)[:0], s.lset...)