A description of our implementation and architecture about using Membase for caching.

1. Cache ArchitectureJanuary 2011

2. Jason Sirota Director, Application Architecture The Knot, Inc. jsirota@theknot.com http://jasonsirota.com/ Twitter: @jasonsirota

3. Who is The Knot?

4. The Knot, Inc. Weddings, Pregnancy, everything in between Began in 1996 with a channel on AOL Now has multiple brands including The Knot The Nest The Bump

5. But what you really want to know is…

6. How much traffic do we get? 150 million pageviews/month 5 million unique visitors 40 web servers running Windows 10 web server instances running *nix

7. And what technology do we use? ASP.NET SQL Server Nhibernate Struts2 Spring Grails MySQL Oracle PHP SiteCore CMS jQuery / custom JS Castle ActiveRecord WCF Services PostGres Endeca Search Lucene Search

8. CacheImplementation

9. Naked Memcached A programmer and a sysadmin walk into a bar 1 Bare Metal box, 16x1gb Nodes Single point of failure

10. Reasons for switching to Membase Memcached paid support Out of the box instrumentation Low cost for large capacity Logical bucketing Vertical or horizontal expansion Made for many, distributed nodes

11. Membase hardware 5xBare metal boxes HP DL165 – AMD 6172 2x16GB RAM (32GB) 2x300GB SAS 10K HD

12. Total Cluster 140 GB RAM ~700GB Disk Space allocated

13. Bucket Configuration 10 Buckets 1 per app 10 GB -20 GB Up to 1.5mm keys Up to 7000 o/s

14. Overall Statistics 10k-15k ops/sec overall cluster 5k-10k for largest node

15. Demo