Hi,
i am trying to retrieve several zip files from FTP site using FTPClient . The retrieve process hangs when trying to get large files of 5MB.
the
thread hangs without any errors or exceptions, although IO exceptions are handled in the code.
this has been happening repeatedly, since a week. Only on the application restart the process again starts adn then after sometime it again hangs.
There is no issue in retrieving smailler zip files.
Please help. Proghram attached below.
private boolean retrieveFromFTPSite(
String ftpUrl,String username,String password,FTPClient ftp, String filePath) {
try {
TimeOutSetFactory timeOutSetFactory = new TimeOutSetFactory();
//Setting timeout to 20 seconds in TimeOutFactory class.
timeOutSetFactory.setTimeOut(20*1000);
ftp.setSocketFactory(timeOutSetFactory);
ftp.connect(ftpUrl);
ftp.login(username, password);
ByteArrayOutputStream bos = new ByteArrayOutputStream(1024 * 1024 * 2);
ftp.setFileType(FTP.BINARY_FILE_TYPE);
System.out.println( "Timeout period"+ftp.getSoTimeout());
ftp.retrieveFile(filePath, bos); // thread hangs here
if (bos.toByteArray().length < 10) {
throw new IOException("Empty or corrupted file " + filePath);
}
bos.close();
return true;
} catch (IOException ioe) {
System.out.println("Error retrieving file. " + ioe.getMessage());
return false;
}
finally{
try {
ftp.logout();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
