Difference between revisions of "Cacti"

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(Draft: Added some links to templates)
(Added "Upgrade")
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{|class="vwikitable"
|-
! File / Path          !! Usage
|-
| <code>/usr/share/cacti/</code> || Main software location
|-
| <code>/usr/share/cacti/index.php</code> || Target of Apache config (the Cacti website)
|-
| <code>/usr/share/cacti/include/config.php</code> || MySQL config
|-
| <code>/etc/cacti/</code> || More config files
|-
| <code>/var/lib/cacti/rra</code> || RRD files
|-
| <code>/etc/apache2/conf.d/cacti.conf</code> || Apache config
|}
== Installation ==
== Installation ==
# Start installation…
# Start installation…
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# Enter password for cacti MySQL account (eg cacti)
# Enter password for cacti MySQL account (eg cacti)
# Log into server using URL http://server/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repository, which I now tend to think is a bad idea for anything other than core OS components (as it can be years out of date, and installs to different locations than you would do manually, making subsequent upgrades a royal pain in the ass, I digress).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 <code>site</code> subfolder).
# Download the latest version, and uncompress
#* EG <code> cd /usr/share </code>
#* EG <code> wget http://www.cacti.net/downloads/cacti-0.8.7i.tar.gz </code>
#* EG <code> tar -xzvf cacti-0.8.7i.tar.gz </code>
# Update the MySQL config in the new version
#* EG <code> vi cacti-0.8.7i/include/config.php </code>
# Backup your existing database
#* EG <code> mysqldump -u root -p -l cacti > /home/user/cacti-v0.8.7e.mysql </code>
# 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 <code> vi /etc/cron.d/cacti </code>
# Check the path that RRA's are expected to go to
#* Compare the <code> $config["rra_path"] </code> value in <code>/include/global.php</code>, if necessary override in <code>/include/config.php</code>
# Check the Apache config
# Switch the folders around
#* EG <code> mv cacti cacti-v0.8.7e </code>
#* EG <code> mv cacti-0.8.7i cacti </code>
# 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)


== Templates ==
== Templates ==

Revision as of 18:16, 22 February 2012

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

  1. Start installation…
    • apt-get install cacti-cactid
  2. OK past libphp-adodb warning
  3. Select Apache2 webserver
  4. Select Yes for cacti database auto-configuration by dbconfig-common?
  5. Enter MySQL root password
  6. Enter password for cacti MySQL account (eg cacti)
  7. 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).

  1. Download the latest version, and uncompress
  2. Update the MySQL config in the new version
    • EG vi cacti-0.8.7i/include/config.php
  3. Backup your existing database
    • EG mysqldump -u root -p -l cacti > /home/user/cacti-v0.8.7e.mysql
  4. 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
  5. 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
  6. Check the Apache config
  7. Switch the folders around
    • EG mv cacti cacti-v0.8.7e
    • EG mv cacti-0.8.7i cacti
  8. Browse to your installation, and upgrade the database
  9. Once complete go to System Utilities > View Cacti Log File, and check everything is looking OK
  10. Remove additional path from crontab (if you added one)

Templates

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