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fix:when the shard is created, disk iops is high, causing http write … #24584

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fix:when the shard is created, disk iops is high, causing http write … #24584

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31 changes: 28 additions & 3 deletions tsdb/index/tsi1/log_file.go
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@ import (
"fmt"
"hash/crc32"
"io"
"math/rand"
"os"
"sort"
"sync"
Expand Down Expand Up @@ -215,6 +216,22 @@ func (f *LogFile) FlushAndSync() error {
return f.file.Sync()
}

// FlushAndSync flushes buffered data to disk
// If the LogFile has disabled flushing and syncing then FlushAndSync is a no-op.
func (f *LogFile) Flush() error {
if f.nosync {
return nil
}

if f.w != nil {
if err := f.w.Flush(); err != nil {
return err
}
}

return nil
}

// ID returns the file sequence identifier.
func (f *LogFile) ID() int { return f.id }

Expand Down Expand Up @@ -565,10 +582,18 @@ func (f *LogFile) AddSeriesList(seriesSet *tsdb.SeriesIDSet, names [][]byte, tag
seriesSet.AddNoLock(entry.SeriesID)
}

// Flush buffer and sync to disk.
if err := f.FlushAndSync(); err != nil {
return nil, err
if rand.Intn(100) < 10 {
// Flush buffer and sync to disk.
if err := f.FlushAndSync(); err != nil {
return nil, err
}
} else {
// Flush buffer.
if err := f.Flush(); err != nil {
return nil, err
}
}

return seriesIDs, nil
}

Expand Down