mirror of
https://github.com/prometheus/prometheus.git
synced 2024-11-10 15:44:05 -08:00
63625bd244
This makes the memory persistence the backing store for views and adjusts the MetricPersistence interface accordingly. It also removes unused Get* method implementations from the LevelDB persistence so they don't need to be adapted to the new interface. In the future, we should rethink these interfaces. All staleness and interpolation handling is now removed from the storage layer and will be handled only by the query layer in the future.
83 lines
2.9 KiB
Go
83 lines
2.9 KiB
Go
// Copyright 2013 Prometheus Team
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package metric
|
|
|
|
import (
|
|
"github.com/prometheus/prometheus/model"
|
|
"github.com/prometheus/prometheus/storage"
|
|
"time"
|
|
)
|
|
|
|
// MetricPersistence is a system for storing metric samples in a persistence
|
|
// layer.
|
|
type MetricPersistence interface {
|
|
// A storage system may rely on external resources and thusly should be
|
|
// closed when finished.
|
|
Close()
|
|
|
|
// Commit all pending operations, if any, since some of the storage components
|
|
// queue work on channels and operate on it in bulk.
|
|
// Flush() error
|
|
|
|
// Record a new sample in the storage layer.
|
|
AppendSample(model.Sample) error
|
|
|
|
// Record a new sample in the storage layer.
|
|
AppendSamples(model.Samples) error
|
|
|
|
// Get all of the metric fingerprints that are associated with the provided
|
|
// label set.
|
|
GetFingerprintsForLabelSet(model.LabelSet) (model.Fingerprints, error)
|
|
|
|
// Get all of the metric fingerprints that are associated for a given label
|
|
// name.
|
|
GetFingerprintsForLabelName(model.LabelName) (model.Fingerprints, error)
|
|
|
|
// Get the metric associated with the provided fingerprint.
|
|
GetMetricForFingerprint(model.Fingerprint) (*model.Metric, error)
|
|
|
|
GetValueAtTime(model.Fingerprint, time.Time) []model.SamplePair
|
|
GetBoundaryValues(model.Fingerprint, model.Interval) (first []model.SamplePair, second []model.SamplePair)
|
|
GetRangeValues(model.Fingerprint, model.Interval) []model.SamplePair
|
|
|
|
ForEachSample(IteratorsForFingerprintBuilder) (err error)
|
|
|
|
// Get all label values that are associated with a given label name.
|
|
GetAllValuesForLabel(model.LabelName) (model.LabelValues, error)
|
|
|
|
// Requests the storage stack to build a materialized View of the values
|
|
// contained therein.
|
|
// MakeView(builder ViewRequestBuilder, deadline time.Duration) (View, error)
|
|
}
|
|
|
|
// View provides view of the values in the datastore subject to the request of a
|
|
// preloading operation.
|
|
type View interface {
|
|
GetValueAtTime(model.Fingerprint, time.Time) []model.SamplePair
|
|
GetBoundaryValues(model.Fingerprint, model.Interval) (first []model.SamplePair, second []model.SamplePair)
|
|
GetRangeValues(model.Fingerprint, model.Interval) []model.SamplePair
|
|
|
|
// Destroy this view.
|
|
Close()
|
|
}
|
|
|
|
type Series interface {
|
|
Fingerprint() model.Fingerprint
|
|
Metric() model.Metric
|
|
}
|
|
|
|
type IteratorsForFingerprintBuilder interface {
|
|
ForStream(stream stream) (storage.RecordDecoder, storage.RecordFilter, storage.RecordOperator)
|
|
}
|