It is modelled after the standard 'top' utility, and displays information such as the requests pers second, bytes per second and the most popular URLs displayed.
It must be run from a machine running Apache, as it works by processing the logfiles found in /var/log/apache
Installation: use "1-click" installer to install apachetop
OpenSuSe 11.1 - here
OpenSuSe 11.0 - here
Using Apachetop:
ApacheTop watches a logfile generated by Apache (in standard common or combined logformat, and generates human-parsable output in realtime.
-f logfile
Select which file to watch. Specify this option multiple times to watch multiple files.
-H hits | -T time
These options are mutually exclusive. Specify only one, if any at all. They work as follows. ApacheTop maintains a table of information internally containing all the relevant information about the hits it's seen. This table can only be a finite size, so you need to decide how big it's going to be. You have two options. You can either: Use -H to say "remember
The default (at the moment) is to remember hits for 30 seconds. Setting this too large (whichever option you choose) will cause ApacheTop to use more memory and more CPU time. My experimentation finds that remembering no more than around 5000 requests works well.
-q
Instructs ApacheTop to keep the querystrings, not remove them.
-l
Instructs ApacheTop to lowercase all URLs, thus /FOO and /foo are treated as the same and accumulate the same statistics.
-s segments
Instructs ApacheTop to only keep the first
-p
Instructs ApacheTop to keep the protocol (http:// usually) at the front of its' referrer strings. Normal behaviour is to remove them to give more room to more useful information.
-r secs
Set default refresh delay, in seconds.
Example: apachetop -f /var/log/apache2/access_log
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source:http://linuxpoison.blogspot.com/2009/05/13578175719104.html