dotCSM BootCamp Presentation With the release of dotCMS 3.0, creating dotCMS server clusters has never been simplier. Join dotCMS architects and experts, Brent, Chris and Daniel for a practical demonstration and see how easy setting up a cluster server environment can be. We'll discuss settings, options and tuning and demonstrate how you can autoscale your cluster to dynamically meet your online demand too. Note: This session can help managers and front-end developers gain valuable insight into what their counterpart Sys Admins are actually doing and thinking durring their work day!

1. @dotcms HiltonMTG: 05061988

2. Auto-Scaling dotCMS 3.0
Using auto-clustering to
provision servers on-demand
chris.mccracken@dotcms.com

3. What is Auto Scaling?
• Auto Scaling is an environment-level service that
adds or removes server instances in response to
defined criteria
• Auto Scaling dotCMS is possible due to 3.0 cluster
auto-configuration
• Auto Scaling solutions are unique & platform-specific
Auto-Scaling dotCMS 3.0

4. Auto Scaling Decision Criteria
Server failure
Auto-Scaling dotCMS 3.0
Time of day
Server CPU load
Request volume
Spot pricing
Expected traffic
Custom metrics

5. Auto Scaling Benefits
• Fault-tolerance
• Cost optimization
• Capacity management
Auto-Scaling dotCMS 3.0

6. AS for fault-tolerance
Auto-Scaling dotCMS 3.0

7. AS for cost optimization
• Cloud platforms let you buy only the hours you need
• Use smaller instances for granularity
• Leverage different pricing models
Auto-Scaling dotCMS 3.0

8. AS for Capacity
• Respond to actual needs in real-time
• No more guesswork or “rounding up”
Auto-Scaling dotCMS 3.0

9. Auto Scaling Demo
An example on Amazon EC2

10. AS Considerations
(stateless servers)
• dotCMS needs a starting point
• Auto scaled servers are disposable
• Auto scaled servers’ data is disposable
• Every solution is custom
Auto-Scaling dotCMS 3.0

11. dotCMS baseline
• ElasticSearch index replicas
• Server(s) to meet minimum load requirements
Auto-Scaling dotCMS 3.0

12. Server deployment
• “Golden” images
• Server must bootstrap itself
• Startup speed is key
• Patching strategy
Auto-Scaling dotCMS 3.0

13. Session management
• Backend vs frontend sessions
• Session managers
Auto-Scaling dotCMS 3.0

14. Logging
• Logs go away when server goes away
• Log shipping
• External logging caveats
Auto-Scaling dotCMS 3.0

15. Scaling criteria
• Know your metrics
• Test your metrics
• Trust your metrics (mostly)
Auto-Scaling dotCMS 3.0

16. Auto-Scaling dotCMS 3.0
Questions?