ERR_ZERO_SIZE_OBJECT

I'm having a lot of problems with this URL, which give always the same
response message (ERR_ZERO_SIZE_OBJECT) through my cache (squid 1.1.0) and
also through all other national cache (1.1.8 and 1.1.9).

The URL is:
http://193.205.101.95/?DRQ=LIUC%2C1@Ricerca%3Bhttp%3A%2F%2F193.205.101.95%3A
80%2FQUERY.HTM&FD01=2&CP01=2&FV01=eco&ST01=1&BL02=AND&FD02=2&CP02=2&FV02=&BL
03=AND&FD03=2&CP03=2&FV03=&BL04=AND&FD04=2&CP04=2&FV04=&BL05=AND&FD05=2&CP05
=2&FV05=&OK=Esegui

But the problem is even worse, because if you go to this URL through the
cache but giving it directly to your browser, it works (TCP_MISS and then
DIRECT).
On the contrary if you fill the form that is generating the request:
http://193.205.101.95/QUERY.HTM

with a value of
eco
in the first field Autore
selecting the radius "Radice" and pressing "Esegui" you get an
ERR_ZERO_SIZE_OBJECT message using the proxy cache, while you get a valid
response excluding the cache (browser "no proxy").
 

I have also had a look at the debug consol.log (obtained through sigusr2),
but I can't see anything meaningful to me.
I just see that while reading back the FD corresponding to the URL requested
it says:
97/05/09 11:50:50| comm_select: FD 302 ready for reading
97/05/09 11:50:50| httpReadReply: FD 302: len 0. <<<<<<<<<<<<<<<<< zero !
97/05/09 11:50:50| comm_set_fd_lifetime: FD 302 lft 86400
97/05/09 11:50:50| ERR_ZERO_SIZE_OBJECT:
http://193.205.101.95/?DRQ=LIUC%2C1@Ricerca%3Bhttp%3A%2F%2F193.205.101.95%3A
80%2FQU
ERY.HTM&FD01=2&CP01=2&FV01=eco&ST01=1&BL02=AND&FD02=2&CP02=2&FV02=&BL03=AND&
FD03=2&CP03=2&FV03=&BL04=AND&FD04=2&CP04=2&FV04=&BL05=AN
D&FD05=2&CP05=2&FV05=&OK=Esegui

This while previously the object was said to be:

97/05/09 11:50:50| comm_write: FD 302: sz 521: tout 30: hndl 40001c9a: data
405a6128.

 I can send the complete log, if requested.

Can someone help me? The problem occurs during a search in a popular
database and we risk to loose some cache users (many) if I can't fix rapidly
the problem (you know, they simply turn the cache proxy off).

Thanks in advance,
Paola Tentoni

* Paola Tentoni
* CILEA - Via R.Sanzio 4, Segrate (Milan) Italy
* tel +39 2 26922434 FAX: +39 2 2135520
* e-mail: tentoni@cilea.it
Received on Tue May 13 1997 - 03:06:05 MDT