![Propel to the Cloud with Open Source,[object Object],or “How we re-engineered a social network” ,[object Object],by Gene Leybzon, CTO, Trusted Opinion, Inc,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-1-2048.jpg?cb=1670245917)
![Trusted Opinion Social Recommendation Network,[object Object],2,[object Object],Propel to the cloud by Gene Leybzon,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-2-2048.jpg?cb=1670245917)
![Trusted Opinion in Numbers,[object Object],Over Million users,[object Object],Over 100 Countries,[object Object],Over 1.5 Million Bars and Restaurants with reviews,[object Object],Over 100,000 emails sent daily,[object Object],3,[object Object],Propel to the cloud by Gene Leybzon,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-3-2048.jpg?cb=1670245917)
![“Legacy” architecture,[object Object],4,[object Object],Propel to the cloud by Gene Leybzon,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-4-2048.jpg?cb=1670245917)
![How J2EE architecture became a liability instead of an asset,[object Object],Business needs:,[object Object],Almost “on-the fly” code changes with immediate deployments (daily releases),[object Object],Extreme scalability,[object Object],Constant tuning based on A/B testing,[object Object],Can not afford expensive DB licensing fee,[object Object],Parallelism in code development with no bottlenecks in the develop-test-release cycles ,[object Object],5,[object Object],Propel to the cloud by Gene Leybzon,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-5-2048.jpg?cb=1670245917)
![“Legacy” hosting,[object Object],6,[object Object],Propel to the cloud by Gene Leybzon,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-6-2048.jpg?cb=1670245917)
![Scalability and Performance Problems,[object Object],Too much work performed in Database (store procedures did a lot of math on the data),[object Object],Way too expensive to go to database cluster while a single server (even 16 core) has it’s limits too,[object Object],Overhead of J2EE+templates (slow performance),[object Object],7,[object Object],Propel to the cloud by Gene Leybzon,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-7-2048.jpg?cb=1670245917)
![Other Pain Points,[object Object],Managing offshore development team,[object Object],Significantof effort in system/database administration,[object Object],Too slow to implementchanges,[object Object],Hard to implement detail user behavior analytics,[object Object],Time to be multilingual and integrate with CDN to support international customers,[object Object],8,[object Object],Propel to the cloud by Gene Leybzon,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-8-2048.jpg?cb=1670245917)
![Solution,[object Object],Complete re-architecture from the top-to-bottom and from the bottom-up ,[object Object],Update to current Snapshot of the best technologies,[object Object],9,[object Object],Propel to the cloud by Gene Leybzon,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-9-2048.jpg?cb=1670245917)
![Wish list that became the Plan,[object Object],Use latest and greatest technologies,[object Object],Open source, and open source only!,[object Object],Scalability on demand,[object Object],Local team for core software development,[object Object],Best analytics with customized A/B testing framework,[object Object],Good performance and with even better performance perception,[object Object],10,[object Object],Propel to the cloud by Gene Leybzon,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-10-2048.jpg?cb=1670245917)
![Why Cloud?,[object Object],Scalability on demand ,[object Object],Dynamic load ,[object Object],Ease deployment/keeping configuration,[object Object],Simplify IT,[object Object],Cool factor,[object Object],11,[object Object],Propel to the cloud by Gene Leybzon,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-11-2048.jpg?cb=1670245917)
![Why Amazon?,[object Object],EC2,[object Object],Cloud Front,[object Object],MapReduce,[object Object],Load balancer,[object Object],Performance monitoring,[object Object],12,[object Object],Propel to the cloud by Gene Leybzon,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-12-2048.jpg?cb=1670245917)
![Job Ahead,[object Object],#lines of Java code,[object Object],Migrating to the new database and with completely different database schema,[object Object],Add language support (20 core languages),[object Object],Add on-demand image uploading to CDN and serving all static content from the CDN,[object Object],13,[object Object],Propel to the cloud by Gene Leybzon,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-13-2048.jpg?cb=1670245917)
![Challenges,[object Object],Where to find right and motivated developers?,[object Object],Where to rent the office ,[object Object],How to create a quality code development culture,[object Object],How to have fun along the way,[object Object],14,[object Object],Propel to the cloud by Gene Leybzon,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-14-2048.jpg?cb=1670245917)
![Lessons,[object Object],People first,[object Object],Happy developers write good code,[object Object],In-house recruiting,[object Object],Focus on the core, borrow the rest,[object Object],15,[object Object],Propel to the cloud by Gene Leybzon,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-15-2048.jpg?cb=1670245917)
![New Architecture,[object Object],16,[object Object],Propel to the cloud presentation by Gene Leybzon,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-16-2048.jpg?cb=1670245917)
![New Database Architecture,[object Object],17,[object Object],Propel to the cloud by Gene Leybzon,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-17-2048.jpg?cb=1670245917)
![Analyzing log data,[object Object],18,[object Object],Propel to the cloud by Gene Leybzon,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-18-2048.jpg?cb=1670245917)
![Semantic Web and RDF,[object Object],Used at Trusted Opinion to store information about Movies and Restaurants ,[object Object],Data stored across all items as “triplets”,[object Object],Allows structured and semi-structured data to be mixed, exposed, and shared across different applications ,[object Object],Took a lot of load from relational DB,[object Object],Easy to add new item categories,[object Object],19,[object Object],Propel to the cloud by Gene Leybzon,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-19-2048.jpg?cb=1670245917)
![You can do it too!,[object Object],“Just do itRight”,[object Object],“Right” developers (treat them with respect!),[object Object],“Right” technology (keep an eye on technology trends, use it fresh but ready),[object Object],“Right” design (NO new frameworks, focus on the product, not a framework),[object Object],“Right” management team,[object Object],20,[object Object],Propel to the cloud by Gene Leybzon,[object Object]](https://image.slidesharecdn.com/propeltothecloudwithopensource-100530043146-phpapp02/75/propel-to-the-cloud-with-open-source-20-2048.jpg?cb=1670245917)
Propel to the cloud with open source
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Trusted Opinion CTO shares the experience in re-engineering of a social network. Major parts of the presentation: - lessons learned during the re-engirding process - open source frameworks used to implement a highly scalable web applications - system architecture solutions used 5 years ago and today
