Re: MRTG with RRDcached tuning
Pavel Ruzicka <[email protected]>
| Newsgroups | gmane.network.mrtg.user |
|---|---|
| Message-ID | <[email protected]> |
Hello, > -s mrtg -m 0660 -l unix:/var/tmp/rrdcached.sock -l mrtg.auckland.ac.nz > -l localhost -z 60 > > -p /var/tmp/rrdcached.pid -t 4 -j /u01/rrdtool/journal -b /u01/rrdtool > -w 1800 -O -a 6 I tried -w 1800 and -z 60, but it still doesn't solve massive pdflush. I don't understand exactly -z option. I understand from documentation that when I set -z to 60 seconds, that it set random write delay between 0 and 60 seconds. When I have -w for 1800, that rrdcached writes files to disk in 60 seconds and -w option is not used. Is it true? > This has had a significant improvement on our previous IO problems. > For the frontend, you could use Routers2 (which supports rrdcached directly I can't change easily frontend for historical reasons :-) > :). However, if you prefer to use 14all, then you can still do this via > > rrrdcached, at least if you are using Apache. Just set the > RRDCACHED_ADDRESS environment variable appropriately in the web server so > that it is set when the CGI is called, and this will make the 14all calls > all use rrdcached, where possible. > <Directory "/u01/www/cgi-bin"> > > SetEnv RRDCACHED_ADDRESS unix:/var/tmp/rrdcached.sock > > </Directory> I tried it, but it probably doesn't use rrdcached. How can I check it? I have on graphs white space on the side. It looks like 14all.cgi use not updated rrd file. > You might want to consider using the trunk version of rrdtool, since this > has more comprehensive rrdcached support for the various rrdtool functions. I prefer to use stable version, if it works. Thank you very much for answers. Best regards, Pavel _______________________________________________ mrtg mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/mrtg