discuss fastcgi development and issues

headers Jia, Yicheng | 18 Apr 2013 00:34

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On Sun, Apr 7, 2013 at 4:07 PM, Jay Sprenkle <jsprenkle@...> wrote:
> This is the simplest solution:
>
> cat error.log | grep -i "client stopped connection before send" >
> FilterError.log

Well, my logs are analyzed by OSSEC, so I have to patch either OSSEC
or mod_fastcgi anyway.

OSSEC parses all of my access.log's and reports things like status
500. So I need to get rid of it (after all it's not really the server
problem it's just the client killing the socket). And I want to keep a
record for this in error.log just in case (it isn't monitored by
OSSEC).

Here is what I have so far:

--- mod_fastcgi.c.orig  2013-04-06 12:33:07.747545365 +0300
+++ mod_fastcgi.c       2013-04-06 12:37:20.973544222 +0300
 <at>  <at>  -2679,8 +2679,13  <at>  <at> 
     }

     /* Process the fastcgi-script request */
-    if ((ret = do_work(r, fr)) != OK)
+    if ((ret = do_work(r, fr)) != OK) {
+        if (ret == 53) {
+            ap_log_rerror(FCGI_LOG_ERR_NOERRNO, r, "FastCGI:
Suppressed error 53");
+            return OK;
+        }
         return ret;
+    }

     /* Special case redirects */
     ret = post_process_for_redirects(r, fr);

It doesn't work. Can you help me with this patch please?

Hello.

Since recent upgrade of mod_fastcgi I keep getting this:

FastCGI: client stopped connection before send body completed
FastCGI: client stopped connection before send body completed
Handler for fastcgi-script returned invalid result code 53

This is caused by baiduspider and ancient IEs. It seems that they
close the socket before server could send the data. This result in
error 500.

Could you please help me suppress this error (I don't want to see it
in access.log as I get an email for every such an error) while still
logging the event in error.log?

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Hi all!

I was trying to send a (chunked-encoding) answer that was being
generated after each chunk of the POST-ed message body was being
received. I tried with both mod_fcgid and mod_proxy_fcgi and
both seem to buffer output until all POSTed message body was
delivered to the application
(they just passed back what was generated after the headers were
accepted, but not after the body started coming. In fact, mod_fcgid
kept crashing if much of the response was building up)

So is this the typical way httpd's fcgi modules handle communication
with a fcgi content generator? won't alternate write/read over
the STDOUT_FILENO that connect the server with the app? (i.e. treat
it as a bidirectinal pipe or open another unidirectional pair?)
If so, have you heard of any better httpd module that can solve this?

any answer/idea or pointer will be greatly appreciated!

best regards

Tand Read

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