Monitor your Drupal Infrastructure with Nagios

1. Know where the fire is
Mike Hathaway

2. Why Monitor?
Do you want your customer to
inform you when things go wrong?
Things do go wrong
Act on problems sooner
Minimize downtime
Increase sales
Make sure no one Plays A Game

3. Besides:
Do you really trust
the geniuses at
your Service
Provider?

4. Monitoring Methods
Your Site Tells You (cronscript or
plugin)
You check your site, Your customers
check your site
An external system checks (Nagios)

5. Your site tells you
Watchdog
Log Entries
Downside
If its not there how does it tell you?

6. You / Your Customers
Do you have time to check
How do you look to your customers when
they find the problems
How often is anything really checked?
Drupad (Helpful Option)

7. An external
system checks
Nagios
Acquia Network
Bijk.com and other paid sites

8. My NOC
Open Tech Support Tickets
Clock
Nagios Problems Queue
No those are not the actual
servers

9. What is Nagios
Nagios Ain’t Gonna Insist On Sainthood
(netsaint)
GPL Licensed Network Monitoring
Platform
Checks and Alerts
Basically a bunch of perl scripts

10. What can it do, What do I need
Anything (plug in architecture)
Run Options
Old Box
Virtual Machine (Me)
Cloud Machine (AWS)

11. How it works
Nagios runs a script
Evaluates the results
Sets a state and notifies if needed
OK
Warning
Critical

12. Out of the box (non drupal specific)
Server
Website
MySQL (add third party nagios
plugin)

13. Drupal Specific
Run the plugin on your site
http://drupal.org/project/nagios
Drupal 5.x (really?)
Drupal 6.x

14. What is monitored?
Core releases
Security releases
Cron
Permissions
Database Scheme
Think Status Report

15. Nagios Setup
Ubuntu Nagios Quickstart
http://nagios.sourceforge.net/
docs/3_0/quickstart-
ubuntu.html
Don’t use apt-get nagios

16. Nagios uses config files, first define a server

17. Then Define a Service

18. Service runs a command

19. Based on returned status Nagios can
Email you (out of the box)
SMS (add on)
Twitter (add on)
Notify someone else (Optimal)

20. Watch your world melt down

21. Nagios can monitor
your world.
It monitors Mine

22. Know where the fire is
Mike Hathaway
mike@mikehathaway.com
Get the links and notes at
www.MikeHathaway.com/Fire