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Date: Fri, 21 Nov 2014 19:43:53 +0100
From: Thomas Neidhart <thomas.neidhart@gmail.com>
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To: user@commons.apache.org
Subject: Re: [fileupload] multipart parsing failed: null?
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On 11/21/2014 04:16 PM, Kristian Rink wrote:
> Folks;
> 
> trying to track down a strange error frequently occurring on our
> infrastructure when users are, well, uploading files using a
> multipart/form data upload form. Traces see below. Worth noting:
> 
> - The application runs in an embedded jetty (HTTP) behind an apache2
> mod_proxy reverse proxy (HTTPS).
> 
> - These issues do not generally appear, I tried quite some uploading
> myself today and never managed to reproduce this behaviour even while
> uploading loads of files, large files and both together.
> 
> - It does not seem to be generally tied to a particular browser; the
> users associated with these messages use Firefox, MSIE or Chrome.
> 
> - Looking at network traffic (and the transfer monitor in the app), it
> _seems_ all data to be sent with the request have successfully been
> transmitted yet parsing the request, ultimately, fails.
> 
> - On _some_ clients, in such situations users reported the upload was
> canceled with a "connection reset by peer" error, even though I do not
> see reasons for that in our mod_proxy server log.
> 
> 
> So far I feel a bit clueless where to look next, here. Does anyone out
> here have an idea what could possibly go wrong?

Hi Kristian,

we have already received similar reports for previous versions of
fileupload, but failed to come up with a re-producible test case or to
track this problem down.

Could you please create a new issue on our issue tracker and attach as
much information as possible?

Thanks,

Thomas

> Thanks in advance for any hints on that,
> Kristian
> 
> 
> Trace:
> 
> 
> [...]
> 
> org.apache.commons.fileupload.FileUploadBase$IOFileUploadException:
> Processing of multipart/form-data request failed. null
>         at
> org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:351)
> ~[commons-fileupload-1.3.1.jar:1.3.1]
>         at
> org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:115)
> ~[commons-fileupload-1.3.1.jar:1.3.1]
> [...]
> Caused by: org.eclipse.jetty.io.EofException: null
>         at
> org.eclipse.jetty.server.HttpInput$3.noContent(HttpInput.java:465)
> ~[jetty-server-9.1.4.v20140401.jar:9.1.4.v20140401]
>         at org.eclipse.jetty.server.HttpInput.read(HttpInput.java:125)
> ~[jetty-server-9.1.4.v20140401.jar:9.1.4.v20140401]
>         at
> org.apache.commons.fileupload.MultipartStream$ItemInputStream.makeAvailable(MultipartStream.java:999)
> ~[commons-fileupload-1.3.1.jar:1.3.1]
>         at
> org.apache.commons.fileupload.MultipartStream$ItemInputStream.read(MultipartStream.java:903)
> ~[commons-fileupload-1.3.1.jar:1.3.1]
>         at java.io.InputStream.read(InputStream.java:101) ~[na:1.7.0_51]
>         at
> org.apache.commons.fileupload.util.Streams.copy(Streams.java:100)
> ~[commons-fileupload-1.3.1.jar:1.3.1]
>         at
> org.apache.commons.fileupload.util.Streams.copy(Streams.java:70)
> ~[commons-fileupload-1.3.1.jar:1.3.1]
>         at
> org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:347)
> ~[commons-fileupload-1.3.1.jar:1.3.1]
> [...]
> 
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