diff options
Diffstat (limited to 'vendor/github.com/docker/distribution/registry/storage')
| -rw-r--r-- | vendor/github.com/docker/distribution/registry/storage/cache/cachedblobdescriptorstore.go | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/vendor/github.com/docker/distribution/registry/storage/cache/cachedblobdescriptorstore.go b/vendor/github.com/docker/distribution/registry/storage/cache/cachedblobdescriptorstore.go index cdc34f5fe..ac4c45211 100644 --- a/vendor/github.com/docker/distribution/registry/storage/cache/cachedblobdescriptorstore.go +++ b/vendor/github.com/docker/distribution/registry/storage/cache/cachedblobdescriptorstore.go @@ -4,6 +4,7 @@ import ( "context" "github.com/docker/distribution" + prometheus "github.com/docker/distribution/metrics" "github.com/opencontainers/go-digest" ) @@ -38,6 +39,11 @@ type cachedBlobStatter struct { tracker MetricsTracker } +var ( + // cacheCount is the number of total cache request received/hits/misses + cacheCount = prometheus.StorageNamespace.NewLabeledCounter("cache", "The number of cache request received", "type") +) + // NewCachedBlobStatter creates a new statter which prefers a cache and // falls back to a backend. func NewCachedBlobStatter(cache distribution.BlobDescriptorService, backend distribution.BlobDescriptorService) distribution.BlobDescriptorService { @@ -58,6 +64,7 @@ func NewCachedBlobStatterWithMetrics(cache distribution.BlobDescriptorService, b } func (cbds *cachedBlobStatter) Stat(ctx context.Context, dgst digest.Digest) (distribution.Descriptor, error) { + cacheCount.WithValues("Request").Inc(1) desc, err := cbds.cache.Stat(ctx, dgst) if err != nil { if err != distribution.ErrBlobUnknown { @@ -66,12 +73,13 @@ func (cbds *cachedBlobStatter) Stat(ctx context.Context, dgst digest.Digest) (di goto fallback } - + cacheCount.WithValues("Hit").Inc(1) if cbds.tracker != nil { cbds.tracker.Hit() } return desc, nil fallback: + cacheCount.WithValues("Miss").Inc(1) if cbds.tracker != nil { cbds.tracker.Miss() } |