[jcifs] 4GB limitation still there ?

Jens Viebig jviebig at como.com
Mon Aug 30 11:28:01 GMT 2004


Ok, it worked with another server. So it's not a problem of jcifs.
----- Original Message ----- 
From: "Michael B Allen" <mba2000 at ioplex.com>
To: "Jens Viebig" <jviebig at como.com>
Cc: <jcifs at lists.samba.org>
Sent: Friday, August 27, 2004 10:17 PM
Subject: Re: [jcifs] 4GB limitation still there ?


> On Fri, 27 Aug 2004 10:53:45 +0200
> "Jens Viebig" <jviebig at como.com> wrote:
>
> > Hello !
> > I try to transfer a file to a windows 2000 share from a linux client
with
> > jcifs. I use SmbFileOutputstream to transfer a large file (> 8GB).The
> > windows system can handle this file, because i uploaded it from here to
> > the linux computer.
> > I did an upgrade from jcifs 0.7.x to jcifs 0.9.7 which improved
> > performance but didn't solve the 4 GB problem. Transfer stops exactly at
> > 4.294.963.200 bytes (Tried it several times). Is this a known issue ?
> >
> > The Exception I get is:
> > jcifs.smb.SmbException: 0xC000007F
> >         at jcifs.smb.SmbTransport.send(SmbTransport.java:668)
> >         at jcifs.smb.SmbSession.send(SmbSession.java:154)
> >         at jcifs.smb.SmbTree.send(SmbTree.java:103)
> >         at jcifs.smb.SmbFile.send(SmbFile.java:724)
> >         at
> >
jcifs.smb.SmbFileOutputStream.write(SmbFileOutputStream.java:220)
> >         at org.apache.commons.io.CopyUtils.copy(CopyUtils.java:188)
>
> There should be no such limitation in jCIFS. JCIFS uses 'long' for
> file offsets which is a 64bit type. This has been tested but not
> thoroughly. It is very possible that a bug has been introduced along
> the way somewhere. However, the above status code is being returned by
> the server. So I don't think this is a bug in JCIFS. What is the server?
>
> 0xC000007F is NT_STATUS_DISK_FULL "There is not enough space on the disk."
> [1]
>
> I would look at the server side first and verify with another client
> that you can indeed write more than 4GB.
>
> Another thing you might try is to use jcifs.smb.SmbRandomAccessFile to
> setLength > 4GB combined with writes to explore the issue with jCIFS too.
>
> Mike
>
> [1] http://jcifs.samba.org/ntstatus.txt
>
> -- 
> Greedo shoots first? Not in my Star Wars.
>



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