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b3901827ee
These had escaped me because the tools aren't rebuilt if there are changes outside of the respective tool itself. Change-Id: I3e69631babdd95b18e698eb79098dfa59f60f597
101 lines
3.2 KiB
Go
101 lines
3.2 KiB
Go
// Copyright 2013 Prometheus Team
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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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// Dumper is responsible for dumping all samples along with metadata contained
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// in a given Prometheus metrics storage. It prints samples in unquoted CSV
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// format, with commas as field separators:
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//
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// <fingerprint>,<chunk_first_time>,<chunk_last_time>,<chunk_sample_count>,<chunk_index>,<timestamp>,<value>
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package main
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import (
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"encoding/csv"
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"flag"
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"fmt"
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"os"
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"strconv"
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"github.com/golang/glog"
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"github.com/prometheus/prometheus/storage"
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"github.com/prometheus/prometheus/storage/metric"
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"github.com/prometheus/prometheus/storage/metric/tiered"
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)
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var (
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storageRoot = flag.String("storage.root", "", "The path to the storage root for Prometheus.")
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dieOnBadChunk = flag.Bool("dieOnBadChunk", false, "Whether to die upon encountering a bad chunk.")
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)
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type SamplesDumper struct {
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*csv.Writer
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}
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func (d *SamplesDumper) Operate(key, value interface{}) *storage.OperatorError {
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sampleKey := key.(*tiered.SampleKey)
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if *dieOnBadChunk && sampleKey.FirstTimestamp.After(sampleKey.LastTimestamp) {
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glog.Fatalf("Chunk: First time (%v) after last time (%v): %v\n", sampleKey.FirstTimestamp.Unix(), sampleKey.LastTimestamp.Unix(), sampleKey)
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}
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for i, sample := range value.(metric.Values) {
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if *dieOnBadChunk && (sample.Timestamp.Before(sampleKey.FirstTimestamp) || sample.Timestamp.After(sampleKey.LastTimestamp)) {
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glog.Fatalf("Sample not within chunk boundaries: chunk FirstTimestamp (%v), chunk LastTimestamp (%v) vs. sample Timestamp (%v)\n", sampleKey.FirstTimestamp.Unix(), sampleKey.LastTimestamp.Unix(), sample.Timestamp)
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}
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d.Write([]string{
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sampleKey.Fingerprint.String(),
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strconv.FormatInt(sampleKey.FirstTimestamp.Unix(), 10),
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strconv.FormatInt(sampleKey.LastTimestamp.Unix(), 10),
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strconv.FormatUint(uint64(sampleKey.SampleCount), 10),
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strconv.Itoa(i),
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strconv.FormatInt(sample.Timestamp.Unix(), 10),
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fmt.Sprintf("%v", sample.Value),
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})
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if err := d.Error(); err != nil {
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return &storage.OperatorError{
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Error: err,
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Continuable: false,
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}
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}
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}
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return nil
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}
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func main() {
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flag.Parse()
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if storageRoot == nil || *storageRoot == "" {
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glog.Fatal("Must provide a path...")
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}
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persistence, err := tiered.NewLevelDBPersistence(*storageRoot)
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if err != nil {
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glog.Fatal(err)
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}
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defer persistence.Close()
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dumper := &SamplesDumper{
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csv.NewWriter(os.Stdout),
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}
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entire, err := persistence.MetricSamples.ForEach(&tiered.MetricSamplesDecoder{}, &tiered.AcceptAllFilter{}, dumper)
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if err != nil {
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glog.Fatal("Error dumping samples: ", err)
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}
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if !entire {
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glog.Fatal("Didn't scan entire corpus")
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}
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dumper.Flush()
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if err = dumper.Error(); err != nil {
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glog.Fatal("Error flushing CSV: ", err)
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}
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}
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