Igor Canadi, Facebook Igor is a software engineer at Facebook where his job is making databases more awesome. He recently graduated from University of Wisconsin-Madison with Masters degree in Computer Science. During his time at UW-M, he worked with prof. Paul Barford in the area of internet measurement and analysis. Igor got his undergraduate degree from University of Zagreb in Croatia. During his undergraduate years, he founded and developed a local non-profit organization that focuses on educating talented high-school students.

2. MongoDB + RocksDB
Igor Canadi
Facebook

6. June 2014

7. October 2014

8. December 2014

9. March 2015

10. March 2015

11. March 2015

12. September 2015

13. October 2015

14. Integration with MongoDB
type key value
Collection <prefix><record_id> <BSON doc>
Unique index <prefix><key> <record_id>
Non-unique index <prefix><key><record_id>

15. Biggest challenges
• Transaction support
• Oplog cleaning
• Deleting a collection/index

16. Comparison with other storage
engines

17. • Parse shutting down :(
• MongoDB keeps getting better
• RocksDB keeps getting better
• MongoRocks layer thin — only 6k lines of code
Future