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I have used SeeFusion to monitor ColdFusion requests. Is there a similar tool that would allow me to monitor Apache httpd requests in real time? We have a server that was fast and responsive for months, but suddenly today, it is using 80% cpu instead of 1%, I have no idea where to start to figure out what is bogging it down.

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up vote 1 down vote accepted

Look at Apache's mod_status module.

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You can use apachetop to see how many requests apache is handling in real time (if you have access logs), also you can use something like awstats, cacti (but its not quite real time)

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There's a command called topto? or did you mean top to. When I use top, doesn't tell me the URI I'd need to determine where the problem is. –  Robert Louis Murphy May 24 '12 at 19:24
    
I just corrected typo .... the command is apachetop –  B14D3 May 24 '12 at 19:44
    
My CentOS does not have apachetop, which package do I install to get it? –  Robert Louis Murphy May 25 '12 at 16:48
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