Re: WOResponse large http file download
Re: WOResponse large http file download
- Subject: Re: WOResponse large http file download
- From: Helmut Tschemernjak <email@hidden>
- Date: Fri, 25 Jan 2013 20:49:48 +0100
- Organization: HELIOS Software GmbH
Hi Jürgen,
we are using large downloads for some time with WO 5.4.3, it works,
however two things:
a) We don't use Apache, instead we use DirectConnect
You can test this within a debug session in Eclipse this also uses the
DirectConnect.
b) The content size parameter needs to be limited
if (fs.fsize > 0x000000007fffffff)
sz = 0x000000007fffffff;
else
sz = fs.fsize;
res.setContentStream(fs.getInputStream(), 8192, sz);
At present I don't know why, but this has been figured out some time ago.
For uploads of more than 2GB I did some workarounds to WO 5.4.3, I
posted it here last summer.
In case problems still exists you should install WireShark and do a
network trace to analyze the problem. I did a little video tour how to
trace, it is available on my Google+ page:
www.helios.de/helmut (goto Article "WireShark Network Tracing – First
Steps" Sept 4 2012),
Good luck.
Helmut
On 25.01.13 13:28, Jürgen Tabert wrote:
I did some tests using a 9GB file
1. Direct Access (Direct Action) works
2. download using the htdocs folder (Apache 2.2) works
3. download using mod_webobjects (Apache 2.2) fails - only ~2GB gets downloaded
Maybe there is a problem in the code of the apache module or I miss an configuration option.
The download stops exactly at the size of an signed integer.
On 24.01.2013, at 18:48, Fabian Peters <email@hidden> wrote:
Hi Niek,
I'm late to the party, but: Are you using Apache 1.3.X? I seem to remember that it has a relatively low size limit of its own.
Fabian
Am 21.01.2013 um 12:59 schrieb niek:
I tried this exact same code, and it doesn't work here.
The file does not get fully downloaded. I'm trying to download a 7GB zip file, and only 2.808.905 bytes (2.8GB) gets downloaded.
Niek Vervaeke
Vit2Print.com
On 19 Jan 2013, at 16:17, Jürgen Tabert wrote:
works for me (DirectAction)
WOResponse response = new WOResponse();
File fileToDownload = new File(po.filePath());
String contentDisposition = "attachment; filename=\"" + po.fileName() + "\"";
response.setHeader(contentDisposition, "content-disposition");
response.setHeader("application/octet-stream", "content-type");
response.setHeader(String.valueOf(fileToDownload.length()),"content-length");
...
response.setContentStream(new FileInputStream(fileToDownload), 4096, fileToDownload.length());
return response;
On 18.01.2013, at 11:35, niek <email@hidden> wrote:
I also get a SocketException at the end of the download.
18/01/2013 11:27:07:597 [OFF] <WorkerThread14> NSLog.java.appendln -> <WOWorkerThread id=14 socket=Socket[addr=/192.168.168.14,port=62455,localport=8889]> Exception while sending response: java.net.SocketException: Broken pipe
I doesn't seem like a time-out problem because when I download the same file from different servers it downloads the same amount of bytes in different times.
On 18 Jan 2013, at 11:14, niek wrote:
New example code:
public WOActionResults TestAction() throws java.io.FileNotFoundException {
WOResponse response = new WOResponse();
response.setHeader("application/x-document", "content-type");
File file = new File("/test.zip");
response.setHeader("attachment; filename=\"" + file.getName() + "\"", "content-disposition");
response.setContentStream(new FileInputStream(file), 4096, file.length());
return response;
}
the setContentStream method accepts long as content length since WO 5.4, so I guess this should work for large files?
If not, how can I support large file downloads?
On 18 Jan 2013, at 11:09, Alexander Spohr wrote:
I think you are wrapping around maxint.
Your example code is incomplete. It can not work...
Am 18.01.2013 um 09:58 schrieb niek <email@hidden>:
Hi all,
I'm experiencing a problem when trying to download files larger than 4GB over http but only a part is downloaded.
When I try to download a 32GB file, only 3,98GB (3980070495 bytes) is downloaded. When I try to download a 7GB file, only 2,7GB is downloaded.
I have retried it several times, and the result was always the same.
Example code:
public WOActionResults DownloadAction() {
WOResponse response = new WOResponse();
response("application/x-document", "content-type");
File file = new File("/test.zip");
response("attachment; filename=\"" + file.getName() + "\"", "content-disposition");
response(new FileInputStream(file), 4096, file.length());
return response;
}
I'm using WebObjects 5.4.3, so since 5.4 the content-length in WOResponse.setContentStream is of type long.
Vit2Print.com NV
Tieltstraat 167
8740 Pittem
Belgium
Phone : +32 51 42 40 15
Fax : +32 51 40 29 22
Web : www.vit2print.com
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8740 Pittem
Belgium
Phone : +32 51 42 40 15
Fax : +32 51 40 29 22
Web : www.vit2print.com
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Tieltstraat 167
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Belgium
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Fax : +32 51 40 29 22
Web : www.vit2print.com
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