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* allow customizing TSDB postings decoder --------- Signed-off-by: Ben Ye <benye@amazon.com>
63 lines
2 KiB
Go
63 lines
2 KiB
Go
// Copyright 2020 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package tsdb
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import (
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"context"
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"math"
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"path/filepath"
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"testing"
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"github.com/stretchr/testify/require"
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"github.com/prometheus/common/promslog"
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"github.com/prometheus/prometheus/model/labels"
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"github.com/prometheus/prometheus/tsdb/chunks"
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)
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func TestBlockWriter(t *testing.T) {
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ctx := context.Background()
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outputDir := t.TempDir()
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w, err := NewBlockWriter(promslog.NewNopLogger(), outputDir, DefaultBlockDuration)
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require.NoError(t, err)
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// Add some series.
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app := w.Appender(ctx)
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ts1, v1 := int64(44), float64(7)
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_, err = app.Append(0, labels.FromStrings("a", "b"), ts1, v1)
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require.NoError(t, err)
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ts2, v2 := int64(55), float64(12)
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_, err = app.Append(0, labels.FromStrings("c", "d"), ts2, v2)
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require.NoError(t, err)
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require.NoError(t, app.Commit())
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id, err := w.Flush(ctx)
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require.NoError(t, err)
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// Confirm the block has the correct data.
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blockpath := filepath.Join(outputDir, id.String())
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b, err := OpenBlock(nil, blockpath, nil, nil)
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require.NoError(t, err)
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defer func() { require.NoError(t, b.Close()) }()
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q, err := NewBlockQuerier(b, math.MinInt64, math.MaxInt64)
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require.NoError(t, err)
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series := query(t, q, labels.MustNewMatcher(labels.MatchRegexp, "", ".*"))
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sample1 := []chunks.Sample{sample{t: ts1, f: v1}}
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sample2 := []chunks.Sample{sample{t: ts2, f: v2}}
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expectedSeries := map[string][]chunks.Sample{"{a=\"b\"}": sample1, "{c=\"d\"}": sample2}
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require.Equal(t, expectedSeries, series)
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require.NoError(t, w.Close())
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}
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