我有一个第三方连接器 (ION)，它通过 FTP 发送文件，由于出现故障，它们似乎在对原始文件名运行 RNFR 命令，然后是 RNTO 命令，最后是 DELE 命令。这就是它失败的地方。日志如下。他们回应故障排除请求，告诉我这是我这边的问题。不过，我不确定是什么问题。TIA
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2020-01-30 14:42:25,074 DEBUG FTPSession [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] setting state to AwaitCommand
2020-01-30 14:42:25,074 DEBUG FTPConnection [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] BeginSend: Response 22071166
2020-01-30 14:42:25,074 DEBUG FTPConnection [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] OnSend: Response 22071166
2020-01-30 14:42:25,105 DEBUG FTPConnection [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] CMD> RNFR /Error/validationLocationTest1580413344681.inprocess
2020-01-30 14:42:25,105 DEBUG FTPConnection [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] Processed command RNFR /Error/validationLocationTest1580413344681.inprocess
2020-01-30 14:42:25,105 DEBUG FTPConnection [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] CMD< 350 File or directory exists, ready for destination name.
2020-01-30 14:42:25,105 DEBUG FTPSession [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] setting state to Rename
2020-01-30 14:42:25,105 DEBUG FTPConnection [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] BeginSend: Response 22071167
2020-01-30 14:42:25,105 DEBUG FTPConnection [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] OnSend: Response 22071167
2020-01-30 14:42:25,121 DEBUG FTPConnection [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] CMD> RNTO /Error/validationLocationTest
2020-01-30 14:42:25,121 INFO RenameCommand [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] Renamed file from /F-drive/CompleteFTP/CarrollCo2018/Error/validationLocationTest1580413344681.inprocess to /F-drive/CompleteFTP/CarrollCo2018/Error/validationLocationTest
2020-01-30 14:42:25,121 DEBUG FTPConnection [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] Processed command RNTO /Error/validationLocationTest
2020-01-30 14:42:25,121 DEBUG FTPConnection [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] CMD< 250 Rename successful.
2020-01-30 14:42:25,121 DEBUG FTPSession [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] setting state to AwaitCommand
2020-01-30 14:42:25,121 DEBUG FTPConnection [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] BeginSend: Response 22071168
2020-01-30 14:42:25,121 DEBUG FTPConnection [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] OnSend: Response 22071168
2020-01-30 14:42:25,152 DEBUG FTPConnection [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] CMD> DELE /Error/validationLocationTest1580413344681.inprocess
2020-01-30 14:42:25,152 ERROR DeleteCommand [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] failed to delete file: validationLocationTest1580413344681.inprocess
2020-01-30 14:42:25,152 DEBUG FTPConnection [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] Processed command DELE /Error/validationLocationTest1580413344681.inprocess
2020-01-30 14:42:25,152 DEBUG FTPConnection [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] CMD< 550 /Error/validationLocationTest1580413344681.inprocess: No such file or direct
2020-01-30 14:42:25,152 DEBUG FTPConnection [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] [+4 chars]
2020-01-30 14:42:25,152 DEBUG FTPSession [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] setting state to AwaitCommand
2020-01-30 14:42:25,152 DEBUG FTPConnection [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] OnSend: Response 22071169
2020-01-30 14:42:25,152 DEBUG FTPConnection [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] BeginSend: Response 22071169
2020-01-30 14:42:25,168 DEBUG FTPConnection [Session.2190685:Default Site:CarrollCo2018:EXTERNAL_IP_ADDRESS] CMD> QUIT