mirror of
https://github.com/prometheus/prometheus.git
synced 2024-12-26 22:19:40 -08:00
62 lines
1.8 KiB
Go
62 lines
1.8 KiB
Go
// Copyright 2014 The Prometheus Authors
|
|
// 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 local
|
|
|
|
import (
|
|
"time"
|
|
|
|
"github.com/prometheus/common/model"
|
|
)
|
|
|
|
// memorySeriesPreloader is a Preloader for the memorySeriesStorage.
|
|
type memorySeriesPreloader struct {
|
|
storage *memorySeriesStorage
|
|
pinnedChunkDescs []*chunkDesc
|
|
}
|
|
|
|
// PreloadRange implements Preloader.
|
|
func (p *memorySeriesPreloader) PreloadRange(
|
|
fp model.Fingerprint,
|
|
from model.Time, through model.Time,
|
|
) (SeriesIterator, error) {
|
|
cds, iter, err := p.storage.preloadChunksForRange(fp, from, through, false)
|
|
if err != nil {
|
|
return iter, err
|
|
}
|
|
p.pinnedChunkDescs = append(p.pinnedChunkDescs, cds...)
|
|
return iter, nil
|
|
}
|
|
|
|
// PreloadInstant implements Preloader
|
|
func (p *memorySeriesPreloader) PreloadInstant(
|
|
fp model.Fingerprint,
|
|
timestamp model.Time, stalenessDelta time.Duration,
|
|
) (SeriesIterator, error) {
|
|
cds, iter, err := p.storage.preloadChunksForRange(fp, timestamp.Add(-stalenessDelta), timestamp, true)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
p.pinnedChunkDescs = append(p.pinnedChunkDescs, cds...)
|
|
return iter, nil
|
|
}
|
|
|
|
// Close implements Preloader.
|
|
func (p *memorySeriesPreloader) Close() {
|
|
for _, cd := range p.pinnedChunkDescs {
|
|
cd.unpin(p.storage.evictRequests)
|
|
}
|
|
chunkOps.WithLabelValues(unpin).Add(float64(len(p.pinnedChunkDescs)))
|
|
|
|
}
|