小咄：BlazeDS+AMF Client+MySQLで実現するKey-Value Storage
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This document discusses various NoSQL databases and patterns for using them. It covers key-value stores like memcached, Tokyo Cabinet/Tokyo Tyrant, and CouchDB. It also discusses consistency models like eventual consistency and the CAP theorem. Implementation details are provided for using MySQL as a key-value store and communicating with databases using protocols like AMF, JSON, and RPC over HTTP.
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小咄：BlazeDS+AMF Client+MySQLで実現するKey-Value Storage
- 6. • - - key - value ( ) - - key • - - SQL DSL -
- 7. • - - - - - - key -
- 8. • memcached • Tokyo Cabinet/Tokyo Tyrant • Voldemort • Apache CouchDB • HBase( )
- 10. • memcached • • mixi • memcached • • • key
- 13. • • CouchDB CouchDB • MySQL • value JSON • uuid-body •
- 18. • key-value store MySQL • DB • • • I/O
- 19. • • → • • RFC4627 • • • • BLOB •
- 20. • • • • I/O • • ACID
- 21. • Consistency( ) Availability( ) Partition tolerance http://www.cs.berkeley.edu/~brewer/cs262b-2004/PODC-keynote.pdf
- 22. • Web A P •C
- 23. • Strong Consistency - • Weak Consistency - • Eventual Consistency - - MySQL
- 24. • ACID Atomicity Consistency Isolation Durability • BASE - Basically - Avaiable - Soft State ( - Eventual Consistency
- 25. • http://subtech.g.hatena.ne.jp/mala/20090303/1236054662 ( ) (mala ) • Strong Consistency
- 26. • MySQL key-value store • Friend Feed • key-value store • RDB MySQL key-value store
- 28. →DB • JDBC Java • →MySQL • • 3306 • DBCP pooling •
- 30. • HTTP/ • NAT • REST JSON
- 33. • AMF(Action Message Format) →Adobe Flash HTTP • BlazeDS →LifeCycle Data Service ES(Flash ) AMF RPC • BlazeDS Java Tomcat • AMF Java • Ajax+JSON
- 35. • RPC Hello World - Web SpringMVC GET - BlazeDS + SpringFramework + Java AMF Client (AMF - BlazeDS + SpringFramework + Java AMF Client Java
- 38. • DB select/insert/update/delete - JDBC - singleton DataSource - Proxy AMF (Proxy DataSource singleton
- 40. • DataSouce BlazeDS Proxy ( ) • Proxy • Hadoop Map/Reduce singleton Proxy
- 41. • Tokyo Cabinet / Tokyo Tyrant JDBC×Proxy ※set(insert),get(select)
- 43. • Tokyo Tyrant • Tokyo Tyrant
- 46. • Out Of Memory → • RPC BlazeDS Exception throw →
- 47. • MySQL key-value store • −MySQL Proxy • BlazeDS Tomcat Java AMF • BlazeDS(AMF) RPC HTTP • /