Large Scale Cacti
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Mike Lindsey's presentation for The Return of Not Nagios http://www.meetup.com/SF-Bay-Area-Large-Scale-Production-Engineering/events/15481175/
![Basic Cacti ,[object Object],Server, a database, and PHP ,[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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Large Scale Cacti
- 1. Large Scale CactiAggregation, Automation, CMDB Integration, Extending, Reporting, and Scaling Mike Lindsey – IT Architect - Cisco
- 3. Useful documentation provided online. Large and active community forums.
- 5. Graphs For Every Occasion
- 6. Graphs For Every Occasion
- 7. Graphs For Every Occasion
- 8. Graphs For Every Occasion
- 9. Graphs For Every Occasion
- 10. Custom Data Collection Downloaded scripts, custom PHP/Perl/Python/Bash/etc $ ./script hostname field1:123 field2:456 field3:1.0 Product MIBs, Net-SNMP extend variables.. Collect everything, graph it. Forum search: “automatic template generation”
- 11. …icecream?
- 12. Spine & Boost Cactid - Compiled C poller When 296 seconds from cmd.php isn’t enough. Boost - Decoupled RRD updates Remove local file system latency from polling times.
- 13. Aggregate
- 14. Aggregate
- 15. Aggregate
- 16. Aggregate
- 17. Autom8Automatic Graph creation and Tree manipulation
- 18. Command-Line Tools .. Or, how to stop all the mouse-clicks, and make it work for you. Add hosts Add graphs to hosts Add hosts to trees Never manually add a host or graph again. Or if CMDB integration isn’t your thing, check out the Discovery plugin! http://www.cacti.net/downloads/docs/html/scripts.html
- 19. Distributed Polling Scale the bottleneck Toss a poller vm in every colo?
- 20. Going Global
- 21. Notifications & Reporting Thold plugin Threshold templating, for simple but effective alerting. Nectar plugin Scheduled reports.
- 22. Cacti as a Data Warehouse Forum search or dig around GitHub!
- 23. Extending Add a little data export to Google Charts… Credit: James Gladstone
- 24. Extending Add a little data export to Google Charts… get something awesome. Credit: James Gladstone
- 25. Aggregate Autom8 Boost Discovery Nectar Spine Thold CLI Tools Templates Forums Participate Contribute Donate! Cacti Developers: Ian Berry Tony Roman Larry Adams J.P. Pasnak, CD Jimmy Conner Reinhard Scheck Andreas Braun RRDTool: Tobias Oetiker me: Mike Lindsey mike@5dninja.netforums: gninja
Notas del editor
- First slide. Breathe. Now begins the fleshy monkey talky bits.
- What you get after a FreeBSDpkg_add, a Redhat rpm –install, or apt-get, etc.
- Extending graph coverage is easy. Go download a template, and if needed, drop a poller script in /usr/local/cacti/scripts/
- Graphs
- Really. Collect –everything-You can never graph too much. You can overdue your Notification system, but you cannot overdo your historical trending data.
- Sure. Ice Cream.Build sets of graphs from a dozen metrics, in about 20 seconds.
- Migrating from the PHP Poller, to a compiled C poller gives a huge boost in performance, at the cost of a manageable amount of deployment effort.Install Boost, break the architecture up, and you can scale to quite well.
- Aggregate graph creation plugin lets you get a more complete view of host clusters. If you have a more volatile environment and a static aggregate isn’t enough, alternate options exist allowing automated rebuild of aggregates.
- Never deal with graph and tree creation again.
- $ls –l /usr/local/cacti/cli/Most require you to run them via ‘php –q ./cli/script’.. All have –help. Read the docs.If you have a host database or a cmdb with an export function, or even a zone file with well named hostnames, and you can parse that in a script, wrapped around the cli tools, you can end up with a fully automated self-managing Cacti install. It’s a great place to be.
- With nearly three years of operation in an extensively monitored, multi-colo, global environment with approx 2000 monitored servers; multi-poller Cacti can be accomplished with recent versions, and small-scale unofficial patches.
- Current dev branches include integrated functionality for distributed polling.
- Threshold plugin works like a Mini Nagios, only without the Nagios. Nectar emails off scheduled reports. Both are simple, powerful, and effective.
- For me, Cacti works best when I can easily get data back out. Pull it out, feed it into a dashboard, use it for Nagios plugins, feed it into your business logic. Looking at your data is great, but parsing it and interpreting it relative to other data to get a complete view of your environment or application is priceless. Or, at least, many companies will charge you a very large price for it.
- Interactive server utilization Heatmap, thanks to James Gladstone, exported Cacti data, and Google Charts.
- Poller1’s running a little hot. It’s also on a slightly smaller box, and doesn’t get any new load from automatically added devices. If it was a VM, I’d consider reducing its allocated memory.
- Participate in the forums, Read the docs, Contribute, Do Awesome Things.