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Comments (8)

mountainhua avatar mountainhua commented on July 28, 2024 1

this issue is still exist in v2.3.0

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colinmarc avatar colinmarc commented on July 28, 2024

Huh - that certainly seems like a bug. Thanks for the report! If you have a chance to submit a test case for this behavior, that would be much appreciated.

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fnxnet avatar fnxnet commented on July 28, 2024

Any news on this issue?

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argpass avatar argpass commented on July 28, 2024

Any news on this issue?

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argpass avatar argpass commented on July 28, 2024

I have fixed it:
block_write_stream.go, in method makePacket

func (s *blockWriteStream) makePacket() outboundPacket {
	packetLength := outboundPacketSize
	if s.buf.Len() < outboundPacketSize {
		packetLength = s.buf.Len()
	}
        // fill last chunk's margin with an individual packet
	marginSize := outboundChunkSize - (int(s.offset) % outboundChunkSize)
	if marginSize > 0 && packetLength > marginSize {
		packetLength = marginSize
	}
......

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colinmarc avatar colinmarc commented on July 28, 2024

@zkchen310 - thanks very much for figuring that out! Sorry for any delinquency on my part. :)

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zhaijian avatar zhaijian commented on July 28, 2024

hi,colinmarc:

  • i check the newest code,the git version is d961456,
  • but i encountered the same problem:
  • when i first append,the err is "addBlock call failed with ERROR_APPLICATION (org.apache.hadoop.hdfs.server.namenode.NotReplicatedYetException)",and i append again, the err is "append call failed with ERROR_APPLICATION (org.apache.hadoop.hdfs.protocol.AlreadyBeingCreatedException)"

code:

    nameServer := flag.String("nameserver", "", "The HDFS Name Node Address")
user := flag.String("user", "", "The HDFS Visitor User")
hdfsPath := flag.String("hdfsPath", "", "The HDFS  Which Will Write To HDFS")
createFlag := flag.String("create", "", "create file flag")
flag.Parse()
mockStr := fmt.Sprintf(time.Now().String())
client, err := hdfs.NewForUser(*nameServer, *user)
utee.Chk(err)
defer client.Close()
if *createFlag != "" {
	w, err := client.Create(*hdfsPath)
	if err != nil {
		log.Println("CreateFile err", err)
	}
	_, err = w.Write([]byte(mockStr))
	log.Println("write err", err)
	w.Close()
	return
}

w, err := client.Append(*hdfsPath)
//defer w.Close()
if err != nil {
	log.Println("append err", err)
	return
}
_, err = w.Write([]byte(mockStr))
log.Println("write err", err)
w.Close()

any advice? thank you!

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Revaapriyan avatar Revaapriyan commented on July 28, 2024

I'm facing this issue now. Can anyone give me some solution? I log my data, which flows in through a TCP connection, into the relevant file (opened in append mode) in HDFS.

I will get name whenever a new connection is established

hdfl, err := hdcli.Append(path.Join(hfdsDir, name+".txt"))
if os.IsNotExist(err) {
	log.Println("File doesnot exist, creating...")
	err = hdcli.CreateEmptyFile(path.Join(hfdsDir, name+".jsonl"))
	if err != nil {
		log.Println("Error creating the file:", err)
	}
	hdfl, err = hdcli.Append(path.Join(hfdsDir, name+".jsonl"))
} else if err != nil {
	log.Println("Error opening the file with append:", err)
}
defer hdfl.Close()
hdg := json.NewEncoder(hdfl)
for{
    msg,err = con.Read()
    if err!=nil{
        return
    }
    hdg.Encode(msg)
    hdfl.Flush()
}

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