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Subject: RE: FW: [VFS] Ftp copy hangs
Date: Fri, 18 Nov 2005 14:12:13 -0000
Message-ID: <C8599656B24B1E4A9CB4BC7DABF25DD01D53@swebtec-mx.Swebtec.com>
Thread-Topic: FW: [VFS] Ftp copy hangs
Thread-Index: AcXsQFzd1u+7RqBjQvqItoKvHSUljgACMBqw
From: "Lance Semmens" <lance.semmens@swebtec.com>
To: "Jakarta Commons Users List" <commons-user@jakarta.apache.org>

Ok... Here's the code as it stands
		FileSystemManager fsManager =3D VFS.getManager();
		FileSystemOptions options =3D new FileSystemOptions();
=09
FtpFileSystemConfigBuilder.getInstance().setPassiveMode(options, true);
		FileObject fromFile =3D fsManager.resolveFile(fromUrl,
options);
		FileObject toFile =3D fsManager.resolveFile(toUrl,
options);=20
		toFile.createFolder();
		toFile.copyFrom(fromFile, new AllFileSelector());

Before I was using this code
		FileObject fromFile =3D fsManager.resolveFile(fromUrl);
		FileObject toFile =3D fsManager.resolveFile(toUrl);=20

Which was resolving the FileObjects without my FileSystemOptions... As I
said, I was being a stupid head.

-----Original Message-----
From: Berlin Brown [mailto:berlin.brown@gmail.com]=20
Sent: 18 November 2005 13:03
To: Jakarta Commons Users List
Subject: Re: FW: [VFS] Ftp copy hangs

I have seen this before too.  Can you describe more about the solution.

On 11/18/05, Lance Semmens <lance.semmens@swebtec.com> wrote:
> Ok... I've solved it... I thought I was using passive mode but was=20
> not... I'm now using passive mode and all is well.
> I was being a stupid head and not passing my FileSystemOptions to
> FileSystemManager.resolveFile()
>
> -----Original Message-----
> From: Lance Semmens [mailto:lance.semmens@swebtec.com]
> Sent: 17 November 2005 16:56
> To: Jakarta Commons Users List
> Subject: FW: [VFS] Ftp copy hangs
>
>
> I've been looking into this and can't seem to find a solution.
> I have run "netstat" during the copy and there thousands of ftp=20
> connections. Is there any way of setting a max number of connections??
> FYI I'm using the IIS FTP server
> There are incoming and outgoing firewalls It always hangs on the same=20
> file
>
> -----Original Message-----
> From: Lance Semmens [mailto:lance.semmens@swebtec.com]
> Sent: 17 November 2005 10:36
> To: Jakarta Commons Users List
> Subject: RE: [VFS] Ftp copy hangs
>
> Thanks for your help mario...
> I ran the FTP service on my local machine to eliminate any network=20
> issues and it works. I'm now looking into it.
>
> Cheers,
> Lance.
>
> -----Original Message-----
> From: Mario Ivankovits [mailto:mario@ops.co.at]
> Sent: 08 November 2005 22:22
> To: Jakarta Commons Users List
> Subject: Re: [VFS] Ftp copy hangs
>
> Lance Semmens wrote:
> > From the logging I can see that a whole lot of putFiles are=20
> > successful
>
> > up until a certain point.
> >
> Did I ask you already which ftp server you use?
> How are you connected to the ftp server?
> Is there any firewall in between?
> Might this firewall take your heavy access to the ftp server as=20
> "denial-of-service" attack?
> If its a unix/linux ftp server, do you use the xinetd daemon?
> Maybe you can tweak the "cps" and "max_load" settings?
> Is it always at the same file when it hangs?
> For what I see, you use the ftp active mode, please try to switch to=20
> passive mode with=20
> FtpFileSystemConfigBuilder.getInstance().setPassiveMode(),
> maybe there is some problem with the reverse data connection and any=20
> firewall in between.
>
> At last, please try to capture the transfer using tcpdump -s 2048 -w=20
> ftp.log host <your ftp host ip>
>
> (or ethereal in windows)
>
> If you see a outgoing "LIST" command, but no connection back with any=20
> file-listing then its definitely a network setup problem.
>
>
> Hope something of this helps!
>
> ---
> Mario
>
>
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