小咄：BlazeDS+AMF Client+MySQLで実現するKey-Value Storage

•
-
- key
- value ( )
-
- key
•
-
- SQL DSL
-

•
-
-
-
-
-

- key
-

• memcached
• Tokyo Cabinet/Tokyo Tyrant
• Voldemort
• Apache CouchDB
• HBase( )

• memcached
•
• mixi

• memcached

•
•

• key

•
• CouchDB
CouchDB
• MySQL
• value JSON
•
uuid-body

•

• key-value store MySQL

• DB

•
•
• I/O

•
•
→
•

• RFC4627
•
•
•
• BLOB

•

•
•
•
• I/O

•
•
ACID

• Consistency( ) Availability( ) Partition
tolerance

http://www.cs.berkeley.edu/~brewer/cs262b-2004/PODC-keynote.pdf

• Strong Consistency
-

• Weak Consistency
-

• Eventual Consistency
-

- MySQL

• ACID
Atomicity Consistency
Isolation Durability

• BASE
- Basically
- Avaiable
- Soft State (

- Eventual Consistency

• http://subtech.g.hatena.ne.jp/mala/20090303/1236054662

( )

(mala )

• Strong Consistency

• MySQL key-value store
• Friend Feed
• key-value store

•
RDB

MySQL key-value store

→DB
• JDBC
Java
•
→MySQL
•
• 3306
• DBCP pooling

•

• HTTP/
• NAT
• REST JSON

• AMF(Action Message Format)
→Adobe Flash
HTTP

• BlazeDS
→LifeCycle Data Service ES(Flash
)
AMF RPC
• BlazeDS Java Tomcat
• AMF Java

• Ajax+JSON

• RPC Hello World

- Web SpringMVC
GET
- BlazeDS + SpringFramework + Java AMF Client
(AMF
- BlazeDS + SpringFramework + Java AMF Client
Java

• DB select/insert/update/delete

- JDBC
- singleton DataSource

- Proxy AMF
(Proxy DataSource singleton

• DataSouce
BlazeDS Proxy
( )
• Proxy
• Hadoop Map/Reduce
singleton Proxy

• Tokyo Cabinet / Tokyo Tyrant
JDBC×Proxy
※set(insert),get(select)

• Tokyo Tyrant
• Tokyo
Tyrant

•

Out
Of Memory
→

• RPC BlazeDS Exception throw

→

• MySQL key-value store
• −MySQL Proxy

• BlazeDS Tomcat Java AMF

• BlazeDS(AMF) RPC HTTP

• /

小咄：BlazeDS+AMF Client+MySQLで実現するKey-Value Storage

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