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fix: Create metrics slice when necessary in getCacheMetrics() (#17711)

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drivebyer 2023-07-24 23:40:21 +08:00 committed by GitHub
parent 2da4bd5f1a
commit a7fb3a3853
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1 changed files with 1 additions and 1 deletions
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cmd/metrics-v2.go
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@ -1863,12 +1863,12 @@ func getCacheMetrics() *MetricsGroup {
cacheInterval: 10 * time.Second, cacheInterval: 10 * time.Second,
} }
mg.RegisterRead(func(ctx context.Context) (metrics []Metric) { mg.RegisterRead(func(ctx context.Context) (metrics []Metric) {
metrics = make([]Metric, 0, 20)
cacheObjLayer := newCachedObjectLayerFn() cacheObjLayer := newCachedObjectLayerFn()
// Service not initialized yet // Service not initialized yet
if cacheObjLayer == nil { if cacheObjLayer == nil {
return return
} }
metrics = make([]Metric, 0, 20)
metrics = append(metrics, Metric{ metrics = append(metrics, Metric{
Description: getCacheHitsTotalMD(), Description: getCacheHitsTotalMD(),
Value: float64(cacheObjLayer.CacheStats().getHits()), Value: float64(cacheObjLayer.CacheStats().getHits()),