Extract appending from goroutine.
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@ -540,7 +540,6 @@ func (l *LevelDBMetricPersistence) AppendSamples(samples model.Samples) (err err
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var (
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fingerprintToSamples = groupByFingerprint(samples)
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indexErrChan = make(chan error)
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doneCommitting sync.WaitGroup
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)
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go func(groups map[model.Fingerprint]model.Samples) {
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@ -555,11 +554,8 @@ func (l *LevelDBMetricPersistence) AppendSamples(samples model.Samples) (err err
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indexErrChan <- l.indexMetrics(metrics)
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}(fingerprintToSamples)
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go func() {
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doneCommitting.Add(1)
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samplesBatch := leveldb.NewBatch()
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defer samplesBatch.Close()
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defer doneCommitting.Done()
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for fingerprint, group := range fingerprintToSamples {
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for {
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@ -601,9 +597,7 @@ func (l *LevelDBMetricPersistence) AppendSamples(samples model.Samples) (err err
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if err != nil {
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panic(err)
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}
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}()
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doneCommitting.Wait()
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err = <-indexErrChan
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if err != nil {
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panic(err)
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