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From solprovi...@apache.org
Subject Re: [users@httpd] unexpected EOF on client side when Apache sends applet class
Date Fri, 26 Oct 2007 19:33:41 GMT
This problem affects multiple files and affects all files larger than
256 bytes.  This proves the problem is not the class file.  Even if
Apache httpd has a setting to limit the size of outbound transfers, I
doubt you accidentally configured it.

This issue sounds like a network problem, usually bad hardware -- a
network card, switch, or router is broken.  This can also be caused by
bad drivers, especially when binding network cards.   Since WGET
failed from the server, the problem must be in the server (eliminating
external switches and routers.)

Slax is a small live-CD Linux distribution based on Slackware.  Even
though a "server" edition exits, small size is the priority.  You
might try a more full-sized server distro with more drivers.

The next troubleshooting step is to prove the problem is or is not
with Apache httpd.  Test with another server program such as Tomcat or
Jetty.  I recommend jetty-6.1.5 because jetty-6.1.6rc0 is broken and
Tomcat is larger.  Just download from:
   http://dist.codehaus.org/jetty/
Unzip the download, copy your class file to the test directory, and:
   wget http://localhost:8080/test/helloapp.class

solprovider

On 10/25/07, steve sawtelle <swsyah@yahoo.com> wrote:
> In response to solprovider:
> I'm compiling on the server, so that should not be a problem?
>
> and to Michael:
> "In httpd.conf searching for 'timeout' should find a couple. Usually the
> main timeout should be set for 300. "
>
> I need to check that tomorrow.
> "I also assume the system lets non-http traffic of > 256 bytes through
> without problem? If you have a non-applet will larger files transfer okay?"
>
> I actually tested the problem with text files using wget, so FTP transfers
> are affected as well.
> I then verified the problem by making an empty applet to get it's size below
> 256 bytes and that transferred via the browser fine.
>
> I'm pretty certain this problem is due to data over 256 bytes. Is there
> anything in Apache that would
> create that limit? Or isn't there a mechanism in the server to break a large
> file up into several packets?
> On 10/25/07, steve sawtelle wrote:
> > Didn't know about wget, thanks!. I just downloaded it and tried it:
> > wget 192.168.1.159/helloapp.class
> > It tried many times without success - here are the last two:
> > Retrying.
> > --14:04:40-- http://192.168.1.159/helloapp.class
> > (try:19) => `helloapp.class.19'
> > Connecting to 192.168.1.159:80... connected.
> > HTTP request sent, awaiting response... 200 OK
> > Length: 532 [application/octet-stream]
> >
> > 0% [ ] 0
> > --.--K/s
> >
> > 14:04:40 (0.00 B/s) - Connection closed at byte 0. Retrying.
> >
> > --14:04:40-- http://192.168.1.159/helloapp.class
> > (try:20) => `helloapp.class.19'
> > Connecting to 192.168.1.159:80... connected.
> > HTTP request sent, awaiting response... 200 OK
> > Length: 532 [application/octet-stream]
> > helloapp.class.19 has sprung into existence.
> > Giving up.
> >
> > - The packets look like the ones I was getting with the html code. It
> seems
> > to send back all the info except for the data.
> >
> > I can upload other things in the directory. Ahhh - I made a small text
> file
> > and named it 'test.class' to see if was a problem with the extension. That
> > worked, but if I made the file larger - 475 bytes - it fails.
> >
> > So I'm thinking it has a problem with files larger than a few hundred
> bytes.
> > Is there a setting for max data length or packet size?
> >
> > - Steve
> >
> > Michael McGlothlin wrote:
> > Can you wget the applet file?
> > > Apache 2.2.4 on Slax Linux, clients are win 2000 and win 98 with
> > > Mozilla an IE
> > >
> > > I'm trying to get Apache on a Slax Linux machine to serve an applet to
> > > a browser on a Windows PC.
> > >
> > > The html loads and displays; the applet is a simple 'hello world' app
> > > that runs in appletviewer fine. html and class are in the htdocs
> > > directory. hppd.conf was edited to allow to all.
> > >
> > > The PC requests the html, Apache delivers, ack, ack etc. PC requests
> > > helloapp.class, Apache responds, but the PC shows errors in Java
> > > Console and the applet does not run (applet notinited).
> > >
> > > errors:
> > > load:class helloapp not found.
> > > java.lang.ClassNotFoundException: helloapp
> > > at ......
> > > at ...
> > > Caused by: java.io.IOException: unexpected EOF
> > > at ...
> > >
> > > The tcp packet returned by Apache is:
> > >
> HTTP/1.1 200.OK..
> Date: Thu, 25 Oct 2007 10:16:04 GMT
> Server: Apache/2.2.4.(Unix) mod_ssl/2.2.4 OpenSSL/0.9.8b.DAV/2
> Last-Modified: Thu, 25 Oct 2007 09:58:21.GMT
> ETag: "220c-214-462de940"
> Accept-Ranges: bytes
> Content-Length: 532
> Keep-Alive: timeout=5, max=100
> > >
> > > The packet is 372 bytes but it says the Content-Length is 532
> > >
> > > This and the error suggest that the actual applet class is not being
> > > included in the packet.

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