Merge branch 'parallel-read2' of https://github.com/krishnasrinivas/minio into krishnasrinivas-parallel-read2

Make few more changes and rebased with current master
master
Harshavardhana 9 years ago
commit 45d8898019
  1. 26
      pkg/donut/bucket.go

@ -553,13 +553,31 @@ func (b bucket) decodeEncodedData(totalLeft, blockSize int64, readers map[int]io
return nil, err.Trace()
}
encodedBytes := make([][]byte, encoder.k+encoder.m)
errCh := make(chan error, len(readers))
var errRet error
var readCnt int
for i, reader := range readers {
var bytesBuffer bytes.Buffer
_, err := io.CopyN(&bytesBuffer, reader, int64(curChunkSize))
go func(reader io.Reader, i int) {
encodedBytes[i] = make([]byte, curChunkSize)
_, err := io.ReadFull(reader, encodedBytes[i])
if err != nil {
return nil, probe.NewError(err)
encodedBytes[i] = nil
errCh <- err
return
}
errCh <- nil
}(reader, i)
// read through errCh for any errors
err := <-errCh
if err != nil {
errRet = err
} else {
readCnt++
}
}
encodedBytes[i] = bytesBuffer.Bytes()
if readCnt < int(encoder.k) {
return nil, probe.NewError(errRet)
}
decodedData, err := encoder.Decode(encodedBytes, int(curBlockSize))
if err != nil {

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