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pkg/chunkenc: fix leak of pool. #1793

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merged 1 commit into from
Mar 11, 2020
Merged

pkg/chunkenc: fix leak of pool. #1793

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9 changes: 5 additions & 4 deletions pkg/chunkenc/memchunk.go
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Original file line number Diff line number Diff line change
Expand Up @@ -111,10 +111,15 @@ func (hb *headBlock) append(ts int64, line string) error {

func (hb *headBlock) serialise(pool WriterPool) ([]byte, error) {
inBuf := serializeBytesBufferPool.Get().(*bytes.Buffer)
defer func() {
inBuf.Reset()
serializeBytesBufferPool.Put(inBuf)
}()
outBuf := &bytes.Buffer{}

encBuf := make([]byte, binary.MaxVarintLen64)
compressedWriter := pool.GetWriter(outBuf)
defer pool.PutWriter(compressedWriter)
for _, logEntry := range hb.entries {
n := binary.PutVarint(encBuf, logEntry.t)
inBuf.Write(encBuf[:n])
Expand All @@ -132,10 +137,6 @@ func (hb *headBlock) serialise(pool WriterPool) ([]byte, error) {
return nil, errors.Wrap(err, "flushing pending compress buffer")
}

inBuf.Reset()
serializeBytesBufferPool.Put(inBuf)

pool.PutWriter(compressedWriter)
return outBuf.Bytes(), nil
}

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