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https://issues.apache.org/jira/browse/FTPSERVER-339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12995256#comment-12995256
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Aniceto Pérez y Madrid commented on FTPSERVER-339:
--------------------------------------------------
I think there is no QUIT. Mainly because my client application only issues a
QUIT when trying to upload a new file. Here is an excerpt of the client
boolean b = doFtpConnect();
boolean c = doFtpUpload();
where
private boolean doFtpConnect() {
if (ftp != null) { /* if a connection was open before, close it with
QUIT */
ftp.disconnect(true);
}
ftp = new it.sauronsoftware.ftp4j.FTPClient();
ftp.connect(ftpHost, ftpPort);
ftp.login(ftpUser, ftpPasswd);
ftp.setPassive(jchkPasivo.isSelected());
ftp.setType(FTPClient.TYPE_BINARY);
ftp.changeDirectory(ftpDir);
//create path if if doesn't exist
for (String s : FilenameFormatter.getRuta(idfichero)) {
try {
ftp.changeDirectory(s);
} catch (FTPException e) {//no existe
ftp.createDirectory(s);
ftp.changeDirectory(s);
}
}
//if it was previously uploaded, get the size already there
FTPFile[] list = ftp.list(Integer.toString(idfichero) + ".*");
for (FTPFile fl : list) {
if (fl.getName().equals(filenameremoto)) {
bytesFicheroEnServidor = (int) fl.getSize();
break;
} else if (fl.getName().indexOf(Integer.toString(idfichero) + ".")
== 0) {
bytesFicheroEnServidor = 0;
ftp.deleteFile(fl.getName());
}
}
return ok;
}
boolean doFtpUpload() {
try {
/* *********** the client stucks here *********** */
ftp.upload(filenameremoto, new FileInputStream(filelocal),
bytesFicheroEnServidor, bytesFicheroEnServidor, this);
/* *********** it does not receive the transfer complete
message, and so it waits it forever ***** */
} finally {
uploading = false;
showMsgLogDetallado("End upload cmd");
}
return ok;
}
> Commands Dropped After Successful File Upload
> ---------------------------------------------
>
> Key: FTPSERVER-339
> URL: https://issues.apache.org/jira/browse/FTPSERVER-339
> Project: FtpServer
> Issue Type: Bug
> Affects Versions: 1.0.3
> Reporter: Nick Padgett
> Assignee: Niklas Gustavsson
> Priority: Critical
> Fix For: 1.0.6, 1.1.0
>
>
> After my ftp client successfully uploads a file, it sends a QUIT request.
> This QUIT request doesn't always appear to be logged by the FtpServer which
> results in the connection idling and the FtpServer subsequently closes the
> connection. We experience this issue often when uploading large files (2+GB)
> or multiple medium size files (~1 GB). When the QUIT is received before the
> FtpServer issues a 226 transfer complete message, the server sends a 226
> transfer complete message , the a 221 goodbye message before closing the
> connection. When the QUIT is received after the FtpServer issues a 226
> transfer complete message, sometimes the QUIT is processed on the existing
> thread and sometimes it is processed on a new thread. In either case, the
> server sends a 221 goodbye message and closed the connection. This leads me
> to believe that a QUIT message could be sent to the server in the time
> between when the first thread is being closed and the second thread is being
> opened. Below are logs from my FtpServer that illustrate all of these
> scenarios.
> This issue occurs very frequently and is resulting in the user believing
> their uploads failed.
> QUIT received before 226 transfer complete sent:
> 2009-11-04 14:32:31,936 [pool-4-thread-8] INFO
> org.apache.ftpserver.command.impl.STOR - File uploaded
> /1024/2009/11/02/7558_7W5oJqfN_event.wmv
> 2009-11-04 14:32:31,937 [pool-4-thread-8] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 150 File status
> okay; about to open data connection.
> 2009-11-04 14:32:32,104 [pool-4-thread-8] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - RECEIVED: QUIT
> 2009-11-04 14:32:32,104 [pool-4-thread-8] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 226 Transfer
> complete.
> 2009-11-04 14:32:32,105 [pool-4-thread-8] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 221 Goodbye.
> 2009-11-04 14:32:32,105 [pool-4-thread-8] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - CLOSED
> QUIT received after 226 transfer complete sent on the same thread:
> 2009-11-03 19:25:23,958 [pool-4-thread-697] INFO
> org.apache.ftpserver.command.impl.STOR - File uploaded
> /1017/2009/10/09/7235_xVJpQ8tT_event.wmv
> 2009-11-03 19:25:23,958 [pool-4-thread-697] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 150 File status
> okay; about to open data connection.
> 2009-11-03 19:25:23,968 [pool-4-thread-697] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 226 Transfer
> complete.
> 2009-11-03 19:25:23,991 [pool-4-thread-697] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - RECEIVED: QUIT
> 2009-11-03 19:25:23,992 [pool-4-thread-697] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 221 Goodbye.
> 2009-11-03 19:25:23,992 [pool-4-thread-697] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - CLOSED
> QUIT received after the 226 transfer complete sent on a new thread:
> 2009-11-03 04:43:16,551 [pool-4-thread-662] INFO
> org.apache.ftpserver.command.impl.STOR - File uploaded
> /1030/2009/11/02/7580_GxDwum7M_event.wmv
> 2009-11-03 04:43:16,552 [pool-4-thread-662] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 150 File status
> okay; about to open data connection.
> 2009-11-03 04:43:16,552 [pool-4-thread-662] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 226 Transfer
> complete.
> 2009-11-03 04:43:16,595 [pool-4-thread-667] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - RECEIVED: QUIT
> 2009-11-03 04:43:16,598 [pool-4-thread-667] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 221 Goodbye.
> 2009-11-03 04:43:16,598 [pool-4-thread-667] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - CLOSED
> QUIT NOT received because the FtpServer is between threads:
> 2009-11-04 02:05:18,328 [pool-4-thread-16] INFO
> org.apache.ftpserver.command.impl.STOR - File uploaded
> /1051/2008/11/15/7400_NHftLRzu_event.mp4
> 2009-11-04 02:05:18,329 [pool-4-thread-16] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 150 File status
> okay; about to open data connection.
> 2009-11-04 02:05:18,397 [pool-4-thread-16] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - SENT: 226 Transfer
> complete.
> 2009-11-04 02:08:18,394 [pool-4-thread-106] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - IDLE
> 2009-11-04 02:08:18,394 [pool-4-thread-106] INFO
> org.apache.ftpserver.impl.DefaultFtpHandler - Session idle, closing
> 2009-11-04 02:08:18,395 [pool-4-thread-106] INFO
> org.apache.ftpserver.listener.nio.FtpLoggingFilter - CLOSED
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