Re: document contains no data errors (with mod_ssl)
Hi there, On Mon, 30 Sep 2002, Anthony E. wrote: am receiving document contains no data error messages quite frequently. [snip] incidentally, i noticed i am getting a lot of these errors in the error_log: Out of memory! Callback called exit. If you run out of memory then your Apache will probably fail to send properly the page you want to send, hence the messages from your browser and in the error_log. It sounds to me like you need to read the mod_perl Guide, particularly the bits about memory... Please see the mod_perl home page for a link to the Guide. 73, Ged.
document contains no data errors (with mod_ssl)
i have a working version of apache 1.3.26 with mod_perl 1.27, no problems.. i installed another apache 1.3.26 build with openssl 0.9.6g, mod_ssl 2.8.10-1.3.26, and mod_perl 1.27, and am receiving document contains no data error messages quite frequently. I tried restarting the newly installed apache without mod_ssl enabled, but I still get the errors. I have fine tuned apache exactly how my original version was tuned, and am still having these problems. Any suggestions? __ Do you Yahoo!? New DSL Internet Access from SBC Yahoo! http://sbc.yahoo.com
Re: document contains no data errors (with mod_ssl)
incidentally, i noticed i am getting a lot of these errors in the error_log: Out of memory! Callback called exit. --- Anthony E. [EMAIL PROTECTED] wrote: i have a working version of apache 1.3.26 with mod_perl 1.27, no problems.. i installed another apache 1.3.26 build with openssl 0.9.6g, mod_ssl 2.8.10-1.3.26, and mod_perl 1.27, and am receiving document contains no data error messages quite frequently. I tried restarting the newly installed apache without mod_ssl enabled, but I still get the errors. I have fine tuned apache exactly how my original version was tuned, and am still having these problems. Any suggestions? __ Do you Yahoo!? New DSL Internet Access from SBC Yahoo! http://sbc.yahoo.com __ Do you Yahoo!? New DSL Internet Access from SBC Yahoo! http://sbc.yahoo.com
Re: [OT] Redirect w/ Netscape browser causing 'Document contains no data'
On Aug 23, [EMAIL PROTECTED] contorted a few electrons to say... Daniel Little wrote: I seem to have a strange problem here with Netscape displaying the error 'Document contains no data' when I do $Response-Redirect($location). everytime i've ever gotten that it was because my server side code had caused an apache process to core dump. jr -- Joel W. Reed412-257-3881 --All the simple programs have been written. PGP signature
Re: [OT] Redirect w/ Netscape browser causing 'Document contains no data'
I seem to have a strange problem here with Netscape displaying the error 'Document contains no data' when I do $Response-Redirect($location). everytime i've ever gotten that it was because my server side code had caused an apache process to core dump. You might want to try sending single byte (\n would be sufficient) after calling above redirection code. Though it was not mod_perl (I was using PHP), I had similar symptom and it went away after I added this extra code. Hope this helps. -- Taisuke Yamada [EMAIL PROTECTED] PGP fingerprint = 6B 57 1B ED 65 4C 7D AE 57 1B 49 A7 F7 C8 23 46
[OT] Redirect w/ Netscape browser causing 'Document contains no data'
I seem to have a strange problem here with Netscape displaying the error 'Document contains no data' when I do $Response-Redirect($location). I'm using Apache 1.3.19, mod_perl 1.25, Apache::ASP v2.09, but I don't think it's in Apache::ASP, as the redirect code in there looks pretty much the same as what is recommended in the guide. We have a front-end proxy configuration that also has mod_proxy_add_forward installed, but that was only added recently and I've been trying to track this problem down for a little while. Looking at the logs, both the frontend and backend servers are logging a status code of '302', with '0' bytes transferred - just like I would expect it to. If I go directly to the backend server, it makes no difference, either. It also doesn't seem to make any difference if I buffer output or not. All of this, of course, works just fine in IE. I've got a work-around (ugly) by putting META HTTP-EQUIV=refresh CONTENT=0 ;URL=$location but I'd really like to get rid of that. Anybody have any ideas? Daniel. =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Daniel Little Metrex Systems Inc.[EMAIL PROTECTED] =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Re: Document Contains no data
--- Stas Bekman wrote: On 17 Nov 2000, Stephen A. Cochran wrote: I have a program which runs fine 90% of the time under mod_perl. About 10% of the time Netscape reports "Document contains no data". Looking at the socket traffic, the client receives an orderly release indication (T_ORDEL_IND = 132) on the socket and reponds with a orderly release request, which closes the socket. run it in single mode and attach to the process with strace(1) or truss(1) (depending on what you have). See the debug chapter in the mod_perl guide. --- end of quote --- Thanks for the suggestions from the list for this problem. The strace/truss probably would have helped solve the problem, too bad Digital Unix doesn't have either : ( After two months I finally tracked it down. Turns out that in an infrequently called sub to handle minor error conditions, there was a line "close STDERR". The comment from the author said it was to "kill any ugly errors that havne't made it out yet ...". Not really sure what he really wanted to do originally, but that was the problem. Anytime a process which had executed this code under mod_perl received another mod_perl request, the browser displayed the "Document contains no data" error due to the sequence of requests as described above in my original post. I just confirmed this with a short script which only does "close STDERR". Thought I'd post this in case someone else ever runs into this, or it's a bug. Not sure of closing STDERR is a common practice in CGIs, but maybe a gotcha for the porting guide. Steve Cochran
Re: Document contains no data
Hi there, On Tue, 19 Dec 2000, Darren Duncan wrote: I have been having a problem with my scripts during the where I periodically get a Netscape 4 error saying "Document contains no data" when they run under mod_perl, but not with the same script under CGI. Is this only on Netscape 4? That message often means either bad HTML or a server crash. Have you looked in the error_log? If you can't make sense of it, connect to the server using telnet my.host.wherever 80 and then say GET /your/troublesome/uri HTTP/1.0 followed by two returns and look at the output. It's instructive if you just say "GET / HTTP/1.0" (again followed by two returns). When something fishy happens then it's time to look in the error_log. When I'm debugging I usually stop the server, rename the error_log to something like error_log.2000.12.20, then restart it. That way apache creates a new, empty log and I can follow everything that happens from the moment I start the server without wading through reams of output. Wouldn't you be better off using the request object methods to send your headers? The Eagle Book will tell you all about it. For debug, if there's a server on port 80 listening to real-world requests and I had no other machine to play with I'd want to set up another Apache for debugging which listens on another port, above 1024. That way I can crash the server (almost) all I want without hurting real users. It's all in the Guide. Sorry, have to drive 1000 miles North now... 73, Ged.
Document contains no data
I have been having a problem with my scripts during the where I periodically get a Netscape 4 error saying "Document contains no data" when they run under mod_perl, but not with the same script under CGI. And this only happens sometimes; other times the pages return fine. However, the problem happens very often, even while not all the time. At some points it happens many times sequentially. The problems started soon after I switched to mod_perl on my server using this in the .htaccess file (files named .cgi run as CGI): Files *.pl SetHandler perl-script PerlHandler Apache::Registry Options +ExecCGI /Files I did a search in the Guide for this error and otherwise looked in the troubleshooting sections, but could find nothing. So I am hoping that you all can forgive me for asking help on this problem. Everything else is working fine as near as I can tell. I do not use any global variables explicitely, so I don't see how there could be persistant variable issues. I also print my entire output with headers in a single print statement. I am printing the "HTTP/1.0 200 OK\r\n" ahead of the other headers when running under mod_perl as I am supposed to. And when pages do display they show evidence of this (no extra header text appears). I believe that my mod_perl set-up has about 10 child processes in it, and site traffic is on the order of about 300-1000 hits per day. Stop/Starting the server did not make a difference. Non perl files still are served fine so far and so are .cgi files. Help? // Darren Duncan
Re: Document Contains no data
I have a program which runs fine 90% of the time under mod_perl. About 10% of the time Netscape reports "Document contains no data". Looking at the socket traffic, the client receives an orderly release indication (T_ORDEL_IND = 132) on the socket and reponds with a orderly release request, which closes the socket. I've added some printing calls to determine how far it's getting in the script, even one on the first line. When it fails there are no warnings, none of the STDERR output shows up in the error log, and the html is still generated and output to the error_log. It seems like once the socket it closed, the script continues, but output to STDERR dissapears and STDOUT goes to the error log. Any ideas why the server is sending the orderly release indication or any ways to trace it? I've run the server in single process mode, but it still doesn't give any errors or warnings. I've tried on two different machines, both DECs, one running Perl 5.00404, Apache/1.3.12, mod_perl/1.24, the other running perl 5.00404, Apache/1.3.6, mod_perl/1.20. Steve Cochran - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Document Contains no data
On 17 Nov 2000, Stephen A. Cochran wrote: I have a program which runs fine 90% of the time under mod_perl. About 10% of the time Netscape reports "Document contains no data". Looking at the socket traffic, the client receives an orderly release indication (T_ORDEL_IND = 132) on the socket and reponds with a orderly release request, which closes the socket. I've added some printing calls to determine how far it's getting in the script, even one on the first line. When it fails there are no warnings, none of the STDERR output shows up in the error log, and the html is still generated and output to the error_log. It seems like once the socket it closed, the script continues, but output to STDERR dissapears and STDOUT goes to the error log. Any ideas why the server is sending the orderly release indication or any ways to trace it? I've run the server in single process mode, but it still doesn't give any errors or warnings. run it in single mode and attach to the process with strace(1) or truss(1) (depending on what you have). See the debug chapter in the mod_perl guide. I've tried on two different machines, both DECs, one running Perl 5.00404, Apache/1.3.12, mod_perl/1.24, the other running perl 5.00404, Apache/1.3.6, mod_perl/1.20. Steve Cochran - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] _ Stas Bekman JAm_pH -- Just Another mod_perl Hacker http://stason.org/ mod_perl Guide http://perl.apache.org/guide mailto:[EMAIL PROTECTED] http://apachetoday.com http://jazzvalley.com http://singlesheaven.com http://perlmonth.com perl.org apache.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
