10/11/01にNoSQL Afternoon@楽天タワーで飛び入りで発表させていただきました。今後ともよろしくお願いします。

1. Tokyo Tech.
Shunsuke Nakamura (@sunsuk7tp)

2. =
Dynamo +
Bigtable

3. MySQL
Better
Cassandra

4. Cassandra
Better
MySQL

5. Hbase, Cassandra
Sherpa, MySQL
Storage
SSTable
MySQL
Write
Diff Sequential Write
Keylookup Update
Read
Diff Merge Read
Sequential Read
Write
Read
Read/Write
( ….)

6. Cassandra SSTable
MySQL
◦ MySQL

7. =
Dynamo +
Bigtable

8. =
Dynamo +
MySQL, etc.

9.  JDBC MySQL
 Data Model Workflow Cassandra
 JDBC
◦ cf. PostgreSQL, Redis, MongoDB, ….
Request
ColumnFamilyStore
(CommitLog) or
(Memtable)
JDBC
or
or
SSTable
Mongo
MySQL
Redis
DB

10. WorkloadC
Read(0:100)
Read : 84.7%
Read(10:90)
WorkloadB
MyCassandra(Redis)
Update(10:90)
MyCassandra(MySQL)
Cassandra
Read 50:50
WorkloadA
Update(50:50)
Write : 76.0%
0 1 2 3 4 (ms)

11.  ( )
 / ( )
 MySQL K/V
indexing RDB/ KVS
◦ VoltDB ? Redis ?
◦ HandlerSocket?
◦ ( )

12.  NoSQL +
◦ MySQL: +
 Transaction
◦ MemCache: (cf. Consistent Hashing)
Client

◦
 ) NoSQL
:
=>1

13.  StorageType(SSTable,MySQL,..)
 StorageType
◦ SSTable
◦ MySQL
 & v.s. Network Proximity
Read
Write
Proxy
Proxy
Async Read
Async Write
Redis
Redis
Sync Read
Sync Write
SSTable
MySQL
MySQL
SSTable

14. !!