prometheus/storage/series_test.go
Bartlomiej Plotka b788986717
storage: Adjusted fully storage layer support for chunk iterators: Remote read client, readyStorage, fanout. (#7059)
* Fixed nits introduced by https://github.com/prometheus/prometheus/pull/7334
* Added ChunkQueryable implementation to fanout and readyStorage.
* Added more comments.
* Changed NewVerticalChunkSeriesMerger to CompactingChunkSeriesMerger, removed tiny interface by reusing VerticalSeriesMergeFunc for overlapping algorithm for
both chunks and series, for both querying and compacting (!) + made sure duplicates are merged.
* Added ErrChunkSeriesSet
* Added Samples interface for seamless []promb.Sample to []tsdbutil.Sample conversion.
* Deprecating non chunks serieset based StreamChunkedReadResponses, added chunk one.
* Improved tests.
* Split remote client into Write (old storage) and read.
* Queryable client is now SampleAndChunkQueryable. Since we cannot use nice QueryableFunc I moved
all config based options to sampleAndChunkQueryableClient to aboid boilerplate.

In next commit: Changes for TSDB.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
2020-06-24 14:41:52 +01:00

85 lines
2.4 KiB
Go

// Copyright 2020 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 storage
import (
"math"
"github.com/prometheus/prometheus/pkg/labels"
"github.com/prometheus/prometheus/tsdb/chunkenc"
"github.com/prometheus/prometheus/tsdb/chunks"
"github.com/prometheus/prometheus/tsdb/tsdbutil"
)
type MockSeries struct {
labels labels.Labels
SampleIteratorFn func() chunkenc.Iterator
}
func NewListSeries(lset labels.Labels, s []tsdbutil.Sample) *MockSeries {
return &MockSeries{
labels: lset,
SampleIteratorFn: func() chunkenc.Iterator {
return NewListSeriesIterator(samples(s))
},
}
}
func (s *MockSeries) Labels() labels.Labels { return s.labels }
func (s *MockSeries) Iterator() chunkenc.Iterator { return s.SampleIteratorFn() }
type MockChunkSeries struct {
labels labels.Labels
ChunkIteratorFn func() chunks.Iterator
}
func NewListChunkSeriesFromSamples(lset labels.Labels, samples ...[]tsdbutil.Sample) *MockChunkSeries {
var chks []chunks.Meta
return &MockChunkSeries{
labels: lset,
ChunkIteratorFn: func() chunks.Iterator {
// Inefficient chunks encoding implementation, not caring about chunk size.
for _, s := range samples {
chks = append(chks, tsdbutil.ChunkFromSamples(s))
}
return NewListChunkSeriesIterator(chks...)
},
}
}
func (s *MockChunkSeries) Labels() labels.Labels { return s.labels }
func (s *MockChunkSeries) Iterator() chunks.Iterator { return s.ChunkIteratorFn() }
func ExpandSamples(iter chunkenc.Iterator) ([]tsdbutil.Sample, error) {
var result []tsdbutil.Sample
for iter.Next() {
t, v := iter.At()
// NaNs can't be compared normally, so substitute for another value.
if math.IsNaN(v) {
v = -42
}
result = append(result, sample{t, v})
}
return result, iter.Err()
}
func ExpandChunks(iter chunks.Iterator) ([]chunks.Meta, error) {
var result []chunks.Meta
for iter.Next() {
result = append(result, iter.At())
}
return result, iter.Err()
}