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76 lines
1.8 KiB
76 lines
1.8 KiB
// Copyright 2019 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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"fmt" |
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"path/filepath" |
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"github.com/go-kit/log" |
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"github.com/prometheus/prometheus/storage" |
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) |
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var ErrInvalidTimes = fmt.Errorf("max time is lesser than min time") |
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// CreateBlock creates a chunkrange block from the samples passed to it, and writes it to disk. |
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func CreateBlock(series []storage.Series, dir string, chunkRange int64, logger log.Logger) (string, error) { |
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if chunkRange == 0 { |
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chunkRange = DefaultBlockDuration |
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} |
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if chunkRange < 0 { |
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return "", ErrInvalidTimes |
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} |
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w, err := NewBlockWriter(logger, dir, chunkRange) |
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if err != nil { |
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return "", err |
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} |
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defer func() { |
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if err := w.Close(); err != nil { |
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logger.Log("err closing blockwriter", err.Error()) |
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} |
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}() |
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ctx := context.Background() |
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app := w.Appender(ctx) |
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for _, s := range series { |
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ref := storage.SeriesRef(0) |
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it := s.Iterator() |
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lset := s.Labels() |
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for it.Next() { |
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t, v := it.At() |
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ref, err = app.Append(ref, lset, t, v) |
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if err != nil { |
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return "", err |
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} |
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} |
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if it.Err() != nil { |
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return "", it.Err() |
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} |
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} |
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if err = app.Commit(); err != nil { |
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return "", err |
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} |
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ulid, err := w.Flush(ctx) |
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if err != nil { |
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return "", err |
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} |
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return filepath.Join(dir, ulid.String()), nil |
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}
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