SmartIRC / Discussion / Help: throttling

mediaslut - 2003-10-17

hi all :)

is there any way to abort a php script (automatically) if there's no more output within 10 seconds for example?

I'm working on a website where people can register their nicknames / chatrooms etc.
now, if 3 people would want to register their nick on the same time (or within 5 minutes) - the third one would be throttled.

this would cause the php script to run endless with a massive load (about 99%) - and within just a few minutes the whole server would crash - if I wouldn't kill the processes.

I've tried it with set_time_limit(10); - but this doesn't work.

this is the output I get, before it stops:

-----------------------------------------------

Oct 17 16:41:43 SmartIRC.php(757) benchmark started
Oct 17 16:41:43 SmartIRC.php(944) DEBUG_CONNECTION: connecting
Oct 17 16:41:43 SmartIRC.php(953) DEBUG_SOCKET: using fsockets
Oct 17 16:41:43 SmartIRC.php(978) DEBUG_CONNECTION: connected
Oct 17 16:41:43 SmartIRC.php(982) DEBUG_SOCKET: activating nonblocking fsocket mode
Oct 17 16:41:43 SmartIRC.php(1103) DEBUG_CONNECTION: logging in
Oct 17 16:41:43 SmartIRC.php(1742) DEBUG_IRCMESSAGES: sent: "NICK services"
Oct 17 16:41:43 SmartIRC.php(1742) DEBUG_IRCMESSAGES: sent: "USER TEST 0 * :Test User"

---> now, it hangs....
-----------------------------------------------

this is the code:

$irc = &new Net_SmartIRC();
$irc->startBenchmark();
$irc->setBenchmark(TRUE);
$irc->setUseSockets(FALSE);

$irc->setDebug(SMARTIRC_DEBUG_ALL);

$irc->connect('irc.some.net', 6667);
$irc->login('services', 'Test User', 0, 'TEST');
$irc->getUsers();
$get_info = $irc->listenFor(SMARTIRC_TYPE_INFO);
$irc->disconnect();
$irc->stopBenchmark();
-----------------------------------------------

my temorary solution is now to disable the connection-throttling code in our chatserver software. but there should be a better solution...

any suggestion?

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- Mirco Bauer - 2003-10-18
  
  "Oct 17 16:41:43 SmartIRC.php(953) DEBUG_SOCKET: using fsockets"
  you really should install the sockets extension for PHP, then SmartIRC runs _much_ better... (and doesn't suck 99% cpu)
  
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- mediaslut - 2003-10-19
  
  thanx for your reply! :o)
  
  will it terminate an endless running script (as described in my last posting) when I install the php socket extensions? or does this only fix the high cpu load?
  
  because if it won't terminate the bogus scripts, there would come up another problem after a while --- "too many open files" - and the system would crash again...
  
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  - Mirco Bauer - 2003-10-21
    
    I think this would maybe fix the problem at all.... I am not sure, if its doesn't fix all problems, please report them here with more detailed info (debug log, bot setup, etc...).
    
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    - mediaslut - 2003-10-22
      
      ok, I've now compiled php with sockets and set
      
      $irc->setUseSockets(TRUE);
      
      but the problem is still not solved. the good thing is, the cpu load of the script is a bit lower than 99%
      
      root 32520 75.1 0.8 9248 4228 pts/1 R 10:49 8:04 \_ /usr/local/bin/php -f /www/chatserver/shell_scripts/gener
      
      -> it's 75.1%
      
      but the script still hangs and does not terminate. here's the debug log:
      
      Oct 22 10:49:54 SmartIRC.php(757) benchmark started
      Oct 22 10:49:54 SmartIRC.php(944) DEBUG_CONNECTION: connecting
      Oct 22 10:49:54 SmartIRC.php(949) DEBUG_SOCKET: using real sockets
      Oct 22 10:49:54 SmartIRC.php(978) DEBUG_CONNECTION: connected
      Oct 22 10:49:54 SmartIRC.php(1103) DEBUG_CONNECTION: logging in
      Oct 22 10:49:54 SmartIRC.php(1742) DEBUG_IRCMESSAGES: sent: "NICK services"
      Oct 22 10:49:54 SmartIRC.php(1742) DEBUG_IRCMESSAGES: sent: "USER NEKA 0 * :SHOE Service Bot: Stat "
      
      Warning: socket_write() unable to write to socket [32]: Broken pipe in /data/www/chatserver/SmartIRC-1.76/SmartIRC.php on line 1745
      Oct 22 10:49:54 SmartIRC.php(1360) DEBUG_ACTIONHANDLER: actionhandler(0) registered
      
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      - Mirco Bauer - 2003-10-22
        
        eeeks, it should never create any problems like this on *nix, I expected you have a windows system, there those problems happen often because of broken TCP/IP or sockets implementation....
        
        Could I get an account on that box for testing? I believe it's a deep problem... is it freebsd and you use PHP lower than 4.3.2 ? there was a problem with sockets... maybe its happening here again, if not please let me know if I can analyse that on your box...
        
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        mediaslut - 2003-10-22
        
        ;-) no, I'm not using any microsoft products *LOL*
        
        I'm running this script on SuSE Linux 8.0 / PHP version 4.3.3
        
        what kind of account do you need? is ftp ok? or do you need a shell account? please let me know.
        
        I'll send these information to you later by email - need to eat something first ;-)
        
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        Mirco Bauer - 2003-10-22
        
        I need a shell account, because I want to debug SmartIRC in the environment where it makes troubles...
        all I need is: bash, cvs client, your IRC script
        
        send me the login info to meebey@php.net please...
        
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