Lessons Learnt Building India's Largest E-Commerce Supply

Chain in Ruby

Yogi Kulkarniyogi@flipkart.com

Lessons learned

JRuby

Cross-service transactions

Power of HTTP as integration glue

Performance

Ruby vs jRuby vs Java performance

Monitoring

Tuning

Upgrading platform gems across many services

Team-dynamics

Design

Questions?

Flipkart Tech Blog: http://tech-blog.flipkart.net/Flipkart OSS: https://github.com/flipkart

ReferencesGraphite: http://graphite.wikidot.com/ Statsd: https://github.com/etsy/statsd/Perftools: https://github.com/tmm1/perftools.rbUnicorn - Out of Band GC: http://unicorn.bogomips.org/Unicorn/OobGC.htmlUnicorn - Worker Killer: https://github.com/kzk/unicorn-worker-killer