为什么骆驼抛出异常的FTP回复125？

Question

...
org.apache.camel.component.file.GenericFileOperationFailedException: File operation failed:
    125 Storing data set TEST.TRANSFER.FB80.TXT
 IOException caught while copying.. Code: 125
  at org.apache.camel.component.file.remote.FtpOperations.doStoreFile(FtpOperations.java:710)
  ...

RFC 959写着：

125   Data connection already open; transfer starting.

这是多个信息，而不是特殊的，不是吗？

Answer 1

FTP回复代码125只是故事的一半。执行与Windows 7的命令行ftp客户端手动传送显示：

ftp> send TRANSFER.FB80.TXT
---> PORT 10,100,113,251,254,235
200 Port request OK.
---> STOR TRANSFER.FB80.TXT
125 Storing data set TEST.TRANSFER.FB80.TXT
451-Error: Name=CkResults (Write) RC=-13
451-System completion code and reason: B37-04
451-Data set is out of space.
451-Error (1013) closing the data set.
451 Transfer aborted due to file error.
...

我创建了根据问题CAMEL-13069: Display proper FTP reply message in case of transfer error。