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Re: Efficiency/speed tweaks? [message #25468 is a reply to message #25294]

Thu, 09 June 2005 06:07

Crimson

Messages: 51
Registered: June 2005
Location: Phoenix, AZ

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I found the reason for the higher load. I have a PHP script I wrote that runs constantly (in screen) and monitors the apache log for malicious behavior. Since installing FUD Forum, my hits have increased exponentially, and the reason isn't necessarily a good one. For some odd reason, clients aren't making ONE request for an image, they are making several.

In fact, I found this extreme in the logfile generated by this script:

[01:17:46 am] 67.71.70.226 - 50 requests for theme/default/images/down.gif in 3 seconds

This is NOT an isolated incident. I had to tweak the script to allow more identical requests because so many of my users were being banned in the firewall (dropping packets) through normal use. This script only bans for making identical requests in a very short period of time (such as a script that requests index.php over and over to make your load average go through the roof) -- the script was catching people making dozens of requests for the same exact image dozens of times per page load.

As a result, my script was working overtime sorting through all the hits which made my load average go so high.

I have made some tweaks to the script (namely ignoring images) which has taken care of most of the problem, but I am still concerned with the excessive image requests and the impact that might have on bandwidth consumption. Is there a reason a client isn't requesting the image once, and if so, how can I help the situation?

Thanks again!
-Christine

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[Message index]

		Efficiency/speed tweaks? By: Crimson on Fri, 03 June 2005 23:36
		Re: Efficiency/speed tweaks? By: Ilia on Fri, 03 June 2005 23:54
		Re : Re: Efficiency/speed tweaks? By: DogManStar on Tue, 14 June 2005 20:51
		Re: Efficiency/speed tweaks? By: Crimson on Thu, 09 June 2005 06:07
		Re: Efficiency/speed tweaks? By: Ilia on Thu, 09 June 2005 13:29
		Re: Efficiency/speed tweaks? By: Crimson on Thu, 09 June 2005 19:04
		Re: Efficiency/speed tweaks? By: Ilia on Fri, 10 June 2005 15:30
		Re: Efficiency/speed tweaks? By: Crimson on Fri, 10 June 2005 16:59
		Re: Efficiency/speed tweaks? By: Ilia on Fri, 10 June 2005 17:15

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