| Posted by luckwaski, 06-29-2011, 08:42 AM | | Hey there,
I found a bunch of scripts that restarts httpd when it's under high load.
I would like to aproach it from other way: restart apache only if there is no ongoing php processes.
I know that there's that -graceful thing - which actually still kills loading of some php scripts in fcgi.
It would be great if I could run some script every like 2 minutes which checks if server is busy and restarts if it's iddle.
I know that that might not work in the middle of the day when server is busiest but whatever - not a problem.
Thanks!
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| Posted by sahabcse, 06-29-2011, 01:53 PM | | I can write script for you.. Please let me know your offer
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| Posted by krizag, 06-29-2011, 04:54 PM | | you need to write custom script for this.Did you have any experience in scripting?
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| Posted by luckwaski, 06-29-2011, 05:50 PM | | Nop - unfortunatelly I don't.
How hard would that be?
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| Posted by m4rc3, 06-29-2011, 06:00 PM | | it shouldn't be too hard to script something like that but why do you want to restart apache when it's idle ?
Last edited by m4rc3; 06-29-2011 at 06:00 PM.
Reason: typo
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| Posted by luckwaski, 06-29-2011, 06:05 PM | | Why do I wan't to restart it while idle?
Frankly - I want it to handle recently added domains.
I don't wanna wait till next day (while it restart 2am) or to restart in the middle of some long php query.
Any idea how to get (trustworth) list/number of ongoing processes in fastcgi?
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| Posted by m4rc3, 06-29-2011, 06:11 PM | | but wouldn't a simple reload work for you?
I mean it will reload the config thus loading your newly added domains without actually shutting down the server
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| Posted by luckwaski, 06-29-2011, 06:21 PM | | Yes - it will reload config etc. - but also it will break ongoing connections (imagine php script that uses some external api with curl - sometimes it takes 30 seconds to finish it) and I can't afford that.
And don't mention -graceful - it's total disaster - I've don tests and that's even worse that hard-reset
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| Posted by luckwaski, 06-30-2011, 08:28 AM | | Give me your e-mail pls.
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| Posted by Stratogen, 06-30-2011, 08:59 AM | | The problem is going to be what you class as idle - the HTTP server may be idle waiting for one of your CURL scripts, but you still wouldn't want to restart it. I would suggest automating the 2am restart of the HTTP server which would be a trivial entry in cron.
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| Posted by luckwaski, 06-30-2011, 09:05 AM | | Yea I know - that's the problem. How can I say that php is not working at the moment?
And I would like to restart httpd more often - so clients wont have to wait for their domains to resolve.
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| Posted by Stratogen, 06-30-2011, 09:16 AM | | There is a thread at http://www.webhostingtalk.com/showthread.php?t=673467 that discusses monitoring the number of active connections to port 80 which would do the trick. If the script outputs nothing then you are clear to restart.
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| Posted by viGeek, 06-30-2011, 10:29 AM | | Here is something simple that should help get you started, assuming you want to do it based on connections.
Wanted to add, instead of grabbing the return $?. Perhaps would be better to verify the pid exists. i.e
[ -f /var/run/httpd.pid ]
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| Posted by luckwaski, 06-30-2011, 10:53 AM | | Thanks guys!
I'll give it a try - and gonna let you know what worked for me.
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