[rrd-users] Re: Data granularity

Tolga Yalcinkaya tolga at allesta.com
Fri Jan 21 01:12:48 MET 2005


Thanks for the response.  I too have a Perl script (called Apache Log 
Sweeper) that does something very similar... It sweeps the Apache log 
files and gathers performance stats for a given URI.

However, your code (like my Apache Log Sweeper) does multiple updates to 
RRD in one pass, hence it does *not* experience the NaN problem that I 
was referring to.

In any case, thanks for your help.

Tolga Yalcinkaya

WSABI:  A fiery condiment for Apache Axis!   http://www.wsabi.org

Erik de Mare wrote:
>>I still would use the log file solution.
>>It's way cleaner.
> I took mailgraph as an example for my scripts, and I build this with it: 
> http://haas.oezie.org/rrd/httpd/ (and the script here 
> http://haas.oezie.org/rrd/httpd.pl) it works like a tail -f logfile, and 
> counts the new lines. strips them and count the apache errorcodes 
> 200,404,502 etc. I will write som documentation about it like in 
> http://haas.oezie.org/rrd/cpu.htm (sorry dutch only, maybe later in 
> englisch). maybe you could take it also as an example and adjust i to 
> your needs.
> mvg
> Erik de Mare

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