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Telling the LivePerson Technology Story at Couchbase [SF] 2013
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Telling the LivePerson Technology Story at Couchbase [SF] 2013

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As part of Couchbase[SF]2013, Ido Shilon, R&D Group Leader at LivePerson, discusses LivePerson's project to re-architect their LiveEngage platform backend, with a focus on LivePerson's decision to......

As part of Couchbase[SF]2013, Ido Shilon, R&D Group Leader at LivePerson, discusses LivePerson's project to re-architect their LiveEngage platform backend, with a focus on LivePerson's decision to use NoSQL technologies, the challenges encountered, and the lessons learned.
Video: http://www.youtube.com/watch?v=rYKWFmJEHX0

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  • 1. I get by with a little help from my friends Ido Shilon | 7/22/2013
  • 2. Today’s programme Who is LivePerson? What was our journey? Why was Couchbase chosen? How did we build the new platform? What can you take with you?
  • 3. @idoshilon { name: "Ido Shilon", age: 37, kids: [ "illy" ], wife: "Oshrat", Title: "Group Manager @ LivePerson (Heading the platform group)", Lived_Worked_At: [ "Silicon Wadi (Israel)", "Silicon Alley (NYC)", "Silicon Valley (Bay Area)" ] }
  • 4. LivePerson is… Mission Customers Creating Meaningful Customer Connections 8,500 customers Technology SaaS pioneer since 1998
  • 5. Optimize Customer Acquisition & Reduce Bounce Rate Live engagement for Rich multimedia to lingering customer drive sales closure Recommended use case
  • 6. Technology @ LivePerson Application Stack JVM heavy - Java & Scala Private cloud based on openstack Linux on commodity servers
  • 7. Data @ LP 13 VOLUME TB per  month 20 M Engagements  per  month 1.8 B Visits  per  month
  • 8. Data stack MONITORING CHAT/VOICE system APACHE KAFKA Batch track Real-Time track PERPETUAL STORE COMPLEX EVENT PROCESSING STORM ANALYTICAL DB RT REPOSITORY BUSINESS INTELLIGENCE Cassandra LiveEngage DASHBOARD
  • 9. The use case Web agent console Enables your agents to interact with website visitors Improve agent efficiency Reduce chat time
  • 10. The story - once upon a time Agents console (Java app) Web Tier Visitor’s Events Visitors
  • 11. And then the story continues Web Agent ??? Data center 1 Kafka & Strom (Event bus) Data center 2
  • 12. Possible solutions we considered
  • 13. Why did we pick Couchbase Cassandra Always on Linear scale Searchable Document store Key Value High throughput (R/W) XDCR
  • 14. Architecture REST API Application server Tomcat Couchbase Java SDK cluster cluster XDCR M/R views M/R views Storm Topology Storm Topology Couchbase Java SDK Couchbase Java SDK
  • 15. Data flow Agent Visitor (5) Get visitors List Every 3 sec (7) Return relevant visitors (1) Visitor browsing Visitor Monitoring Service Visitor Feed API (2) Visitor events Kafka (6) Return relevant visitors Couchbase (4) Write event to visitor document Visitor Feed Storm Topology (3) Analyze relevant events
  • 16. Data modeling - doc Visitor type doc Document = Active visitor Contain session level attributes Multi tenant bucket Views Used for secondary indexes
  • 17. Document structure { "accountId": "64302875", "id": 121640710013, "rtSessionId": "643028754295878498", "eventSequence": 5104, "ipAddress": { "fieldValue": "194.39.63.10", "seq": 1 }, Multi tenant DB "browser": { "fieldValue": "Chrome 27.0.1453.116", "seq": 1 }, Basic visitor "state": { information "fieldValue": "LEFT_SITE", "seq": 5104 } ...................................... Sequence use due to Kafka }
  • 18. Cross data center replication Using Bi Directional replication (A/A) Tips : Key space is the same across the two clusters (avoid conflicts) Impact on the sizing
  • 19. Couchbase in production
  • 20. What did we learn till now ? Test in production Use the Couchbase sizing guidelines RAM and SSD are key factors in scalability
  • 21. Data stack now with Couchbase MONITORING CHAT/VOICE system APACHE KAFKA Batch track Real-Time track PERPETUAL STORE COMPLEX EVENT PROCESSING STORM ANALYTICAL DB RT REPOSITORY BUSINESS INTELLIGENCE Cassandra LiveEngage DASHBOARD
  • 22. Couchbase in LP - Strategic choice Visitor Session state Cross Session state Fast RW persistent store Generic caching layer (Memcached style)
  • 23. Summary Who we are Our journey The problem we have encountered We are not alone - Couchbase helped us
  • 24. Thank You