You are viewing a plain text version of this content. The canonical link for it is here.
Posted to user@commons.apache.org by Giriraj Vengurlekar <gv...@serus.com> on 2008/07/09 17:39:20 UTC

(Commons-NET-FTP) Connection closed without indication

Hi

We are using the commons net package 1.4.1 and the FTPClient API. We intermittently see the following - I would appreciate any leads on what can cause this.

Thanks
-giriraj

2008-06-28 14:16:25,218 FATAL [Timer-1] ftp.FTPClientImpl<ftp://ftp.FTPClientImpl> - Connection to OSAT Supplier could not be established
org.apache.commons.net.ftp.FTPConnectionClosedException: Connection closed without indication.
                at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:267<ftp://FTP.java:267>)
                at org.apache.commons.net.ftp.FTP._connectAction_(FTP.java:335<ftp://FTP.java:335>)
                at org.apache.commons.net.ftp.FTPClient._connectAction_(FTPClient.java:550)
                at org.apache.commons.net.SocketClient.connect(SocketClient.java:163)
                at org.apache.commons.net.SocketClient.connect(SocketClient.java:250)
                at com.serus.adapter.ftp.FTPClientImpl$FTPTask.establishConnection(FTPClientImpl.java:199)
                at com.serus.adapter.ftp.FTPClientImpl$FTPTask.run(FTPClientImpl.java:143)
                at java.util.TimerThread.mainLoop(Timer.java:512)
                at java.util.TimerThread.run(Timer.java:462)
2008-06-28 14:19:34,187 FATAL [Timer-1] ftp.FTPClientImpl<ftp://ftp.FTPClientImpl> - Connection to OSAT Supplier could not be established
org.apache.commons.net.ftp.FTPConnectionClosedException: Connection closed without indication.
                at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:267<ftp://FTP.java:267>)
                at org.apache.commons.net.ftp.FTP._connectAction_(FTP.java:335<ftp://FTP.java:335>)
                at org.apache.commons.net.ftp.FTPClient._connectAction_(FTPClient.java:550)
                at org.apache.commons.net.SocketClient.connect(SocketClient.java:163)
                at org.apache.commons.net.SocketClient.connect(SocketClient.java:250)
                at com.serus.adapter.ftp.FTPClientImpl$FTPTask.establishConnection(FTPClientImpl.java:199)
                at com.serus.adapter.ftp.FTPClientImpl$FTPTask.run(FTPClientImpl.java:143)
                at java.util.TimerThread.mainLoop(Timer.java:512)
                at java.util.TimerThread.run(Timer.java:462)
2

Re: (Commons-NET-FTP) Connection closed without indication

Posted by sebb <se...@gmail.com>.
On 09/07/2008, Giriraj Vengurlekar <gv...@serus.com> wrote:
> Hi
>
>  We are using the commons net package 1.4.1 and the FTPClient API. We intermittently see the following - I would appreciate any leads on what can cause this.
>
>  Thanks
>  -giriraj
>
>  2008-06-28 14:16:25,218 FATAL [Timer-1] ftp.FTPClientImpl<ftp://ftp.FTPClientImpl> - Connection to OSAT Supplier could not be established
>  org.apache.commons.net.ftp.FTPConnectionClosedException: Connection closed without indication.

This Exception is generated when the readLine() method returns -1 on
the control connection - i.e. the control connection is at EOF -
during the initial connection phase.

This suggests that there is a problem with the server.

Might be useful to use a protocol analyser to find out what is happening.

>                 at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:267<ftp://FTP.java:267>)
>                 at org.apache.commons.net.ftp.FTP._connectAction_(FTP.java:335<ftp://FTP.java:335>)
>                 at org.apache.commons.net.ftp.FTPClient._connectAction_(FTPClient.java:550)
>                 at org.apache.commons.net.SocketClient.connect(SocketClient.java:163)
>                 at org.apache.commons.net.SocketClient.connect(SocketClient.java:250)
>                 at com.serus.adapter.ftp.FTPClientImpl$FTPTask.establishConnection(FTPClientImpl.java:199)
>                 at com.serus.adapter.ftp.FTPClientImpl$FTPTask.run(FTPClientImpl.java:143)
>                 at java.util.TimerThread.mainLoop(Timer.java:512)
>                 at java.util.TimerThread.run(Timer.java:462)
>  2008-06-28 14:19:34,187 FATAL [Timer-1] ftp.FTPClientImpl<ftp://ftp.FTPClientImpl> - Connection to OSAT Supplier could not be established
>  org.apache.commons.net.ftp.FTPConnectionClosedException: Connection closed without indication.
>                 at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:267<ftp://FTP.java:267>)
>                 at org.apache.commons.net.ftp.FTP._connectAction_(FTP.java:335<ftp://FTP.java:335>)
>                 at org.apache.commons.net.ftp.FTPClient._connectAction_(FTPClient.java:550)
>                 at org.apache.commons.net.SocketClient.connect(SocketClient.java:163)
>                 at org.apache.commons.net.SocketClient.connect(SocketClient.java:250)
>                 at com.serus.adapter.ftp.FTPClientImpl$FTPTask.establishConnection(FTPClientImpl.java:199)
>                 at com.serus.adapter.ftp.FTPClientImpl$FTPTask.run(FTPClientImpl.java:143)
>                 at java.util.TimerThread.mainLoop(Timer.java:512)
>                 at java.util.TimerThread.run(Timer.java:462)
>  2
>
>

---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@commons.apache.org
For additional commands, e-mail: user-help@commons.apache.org