Problems with file upload

[Marco Bucciarelli <mb...@edp-progetti.it>]

I have a servlet that manages the file upload, using a FILE field in a "multipart/form-data" form:
<FORM ACTION="servlet/requestupload" METHOD=POST ENCTYPE="multipart/form-data">
  Which file to upload? <INPUT TYPE=FILE NAME=file1> <BR>
  <INPUT TYPE=SUBMIT>
</FORM>

I have a Tomcat 4.1.12 + Apache WebServer 1.3.22 + mod_jk 1.2.2 on RedHat Linux 7.0.

When I submit the form, after a few minutes, in my catalina.out file I get the message:

Dec 18, 2002 5:31:48 PM org.apache.jk.common.ChannelSocket processConnection
WARNING: server has closed the current connection (-1)

on mod_jk.log with debug set to Information, I get:
[Wed Dec 18 17:48:45 2002]  [mod_jk.c (1841)]: mod_jk::jk_translate, check alias_dir: /var/tomcat4/webapps
[Wed Dec 18 17:48:45 2002]  [mod_jk.c (1864)]: mod_jk::jk_translate, AutoAlias child_dir: Asso2000
[Wed Dec 18 17:48:45 2002]  [jk_uri_worker_map.c (460)]: Into jk_uri_worker_map_t::map_uri_to_worker
[Wed Dec 18 17:48:45 2002]  [jk_uri_worker_map.c (477)]: Attempting to map URI '/edptest/servlet/requestupload'
[Wed Dec 18 17:48:45 2002]  [jk_uri_worker_map.c (502)]: jk_uri_worker_map_t::map_uri_to_worker, Found a context match ajp13 -> /edptest/servlet/
[Wed Dec 18 17:48:45 2002]  [jk_worker.c (132)]: Into wc_get_worker_for_name ajp13
[Wed Dec 18 17:48:45 2002]  [jk_worker.c (136)]: wc_get_worker_for_name, done  found a worker
[Wed Dec 18 17:48:45 2002]  [jk_ajp_common.c (1404)]: Into jk_worker_t::get_endpoint
[Wed Dec 18 17:48:45 2002]  [jk_ajp_common.c (1448)]: In jk_endpoint_t::ajp_get_endpoint, time elapsed since last request = 41 seconds
[Wed Dec 18 17:48:45 2002]  [jk_ajp_common.c (1116)]: Into jk_endpoint_t::service
[Wed Dec 18 17:48:45 2002]  [jk_ajp_common.c (295)]: Into ajp_marshal_into_msgb
[Wed Dec 18 17:48:45 2002]  [jk_ajp_common.c (432)]: ajp_marshal_into_msgb - Done
[Wed Dec 18 17:48:45 2002]  [jk_ajp_common.c (642)]: sending to ajp13 #508
[Wed Dec 18 17:48:45 2002]  [jk_ajp_common.c (884)]: ajp_send_request 2: request body to send 297143 - request body to resend 0
[Wed Dec 18 17:48:48 2002]  [jk_ajp_common.c (642)]: sending to ajp13 #8192
[Wed Dec 18 17:48:55 2002]  [jk_ajp_common.c (729)]: received from ajp13 #3
[Wed Dec 18 17:49:24 2002]  [jk_ajp_common.c (642)]: sending to ajp13 #8192
[Wed Dec 18 17:49:24 2002]  [jk_ajp_common.c (729)]: received from ajp13 #3
[Wed Dec 18 17:49:41 2002]  [jk_ajp_common.c (642)]: sending to ajp13 #8192
[Wed Dec 18 17:49:41 2002]  [jk_ajp_common.c (729)]: received from ajp13 #3

and the browser says it can not find the server or there is a DNS error.

I find the saved files in the right directory, but with zero size.

The "problem" is that in my test environment, with the same configuration, everything works!!
There must be something different in the configuration of Apache, Tomcat, mod_jk, but I could not find the problem.

On the same server and same Apache WebServer, everything worked with Tomcat 3.2.1 and mod_jk, using ajp12.

Any idea on what I have to look for?

Bye,
Marco.