Cacti
| File / Path | Usage |
|---|---|
/usr/share/cacti/ |
Main software location |
/usr/share/cacti/index.php |
Target of Apache config (the Cacti website) |
/usr/share/cacti/include/config.php |
MySQL config |
/etc/cacti/ |
More config files |
/var/lib/cacti/rra |
RRD files |
/etc/apache2/conf.d/cacti.conf |
Apache config |
Installation
- Start installation…
apt-get install cacti-cactid
- OK past
libphp-adodbwarning - Select Apache2 webserver
- Select Yes for cacti database auto-configuration by dbconfig-common?
- Enter MySQL root password
- Enter password for cacti MySQL account (eg cacti)
- Log into server using URL http://server/cacti
Upgrade
There is an upgrade procedure on Cacti's website (http://www.cacti.net/downloads/docs/html/upgrade.html), I'm not sure I agree with the order of the steps, in that I suspect it could prolong the time for which you can't capture data, but otherwise it seems fine. I don't know that my procedure is any better, but it works for me.
Be aware that I originally installed Cacti from the Ubuntu repository, which I now tend to think is a bad idea for anything other than core OS components (as it can be years out of date, and installs to different locations than you would do manually, making subsequent upgrades a royal pain in the ass, I digress). So your files may not be in the same location as above (originally I had a site subfolder).
- Download the latest version, and uncompress
- EG
cd /usr/share - EG
wget http://www.cacti.net/downloads/cacti-0.8.7i.tar.gz - EG
tar -xzvf cacti-0.8.7i.tar.gz
- EG
- Update the MySQL config in the new version
- EG
vi cacti-0.8.7i/include/config.php
- EG
- Backup your existing database
- EG
mysqldump -u root -p -l cacti > /home/user/cacti-v0.8.7e.mysql
- EG
- Check the poller cron job, if the poller.php path is changing, add an entry for the new path (we can remove the old path once everything is working)
- EG
vi /etc/cron.d/cacti
- EG
- Check the path that RRA's are expected to go to
- Compare the
$config["rra_path"]value in/include/global.php, if necessary override in/include/config.php
- Compare the
- Check the Apache config
- Switch the folders around
- EG
mv cacti cacti-v0.8.7e - EG
mv cacti-0.8.7i cacti
- EG
- Browse to your installation, and upgrade the database
- Once complete go to System Utilities > View Cacti Log File, and check everything is looking OK
- Remove additional path from crontab (if you added one)
If you've upgraded an installation that was installed automatically with aptitude or apt-get then you'll need to stop it being mangled/downgraded in the future, to do so run
aptitude hold 'cacti'