ROMA is a Ruby-based distributed key-value store (NoSQL) developed by Rakuten Institute of Technology in collaboration with Ruby creator Yukihiro Matsumoto since 2007. It uses a pure peer-to-peer architecture with consistent hashing and virtual nodes to provide high scalability and fault tolerance. The open source ROMA project includes the core ROMA software, Gladiator GUI management tool, and documentation on using and benchmarking ROMA.

1. Ruby based Distributed Key Value Store
'ROMA'
Vol.01 Sep/11/2015
Hiroaki Iwase
Rakuten, Inc.
http://roma-kvs.org
Ruby Conf Taiwan 2015

2. 2
Hiroaki Iwase
hiroaki-iwase
H1R0AK1_1WA5E
Career
2011.3 Graduated from Tohoku University
2011.4 Join Rakuten, Inc.
2012.5 Join OSS team.
Skill
Ruby
Ruby on Rails, Sinatra
PHP, Ad platform, etc…
Self introduction

3. Taiwan Business
http://www.rakuten.com.tw

4. 4
1. ROMA

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What’s about ROMA?

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What’s about ROMA？
 ROMA
-Rakuten/Ruby On-Memory Architecture-
 Ruby based Distributed Key Value Store(NOSQL).
ROMA project HP
• http://roma-kvs.org
Github
https://github.com/roma
Twitter
@ROMA_kvs

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What’s about ROMA？
 ROMA(Rakuten On-Memory Architecture)
 Developed by RIT(Rakuten Institute Technology)
with Matz.
- 2007 ROMA start Development
- 2009 Release as a OSS product
20
services

8. 8

9. 9
What’s about ROMA？
 Specialty of ROMA
• Pure P2P architecture
• Consistent Hashing and Virtual Nodes
• Data replication
• Auto recovering system
• Plug-in Architecture
• Memcached compatible protocol

10. 10
What’s about ROMA？
 Specialty of ROMA
• Pure P2P architecture
• Consistent Hashing and Virtual Nodes
• Data replication
• Auto recovering system
• Plug-in Architecture
• Memcached compatible protocol
High Scalability

11. 11
What’s about ROMA？
 Specialty of ROMA
• Pure P2P architecture
• Consistent Hashing and Virtual Nodes
• Data replication
• Auto recovering system
• Plug-in Architecture
• Memcached compatible protocol

12. 12
What’s about ROMA？
 Specialty of ROMA
• Pure P2P architecture
• Consistent Hashing and Virtual Nodes
• Data replication
• Auto recovering system
• Plug-in Architecture
• Memcached compatible protocol
High Fault-Tolerance

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Storage
+

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Storage
+You can choice storage type
depending on situation.

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2. Hi Scalability

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Adding server(instance)
Without
Stopping

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Server migration
Tokyo US East

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Server migration
Tokyo US East

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Server migration
Tokyo US East

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Server migration
Tokyo US East

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Server migration
Tokyo US East

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Server migration
Tokyo US East
ROMA client
Gladiator
Can Access
Without
Stopping

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3. Gladiator

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ROMA
Gladiator is a GUI tool of ROMA
Gladiator
Management
Control

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What can Gladiator do?

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Cluster Control

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Without
Stopping
ROMA!
Status setting

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Log

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Connection Analysis
v1.1.0~

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4. How to use?

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https://github.com/roma

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https://github.com/roma

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https://github.com/roma

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https://github.com/roma

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https://github.com/roma

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5. Try to use ROMA?

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42. ROMA virtual
Console API
Trans
Form
https://github.com/roma/try-roma
reference：http://www.w3.org/html/logo/

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Bench mark(FYI)

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New version (v1.2.0)

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New version (v1.2.0)
Did-you-mean

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New version (v1.2.0)
Did-you-mean

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http://roma-kvs.org

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http://roma-kvs.org
Benchmark Result
Try ROMA
Gladiator(GUI)
V1.2.0

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我的演讲就到此为止，谢谢聆听
http://roma-kvs.org/