M|18 DBS Bank’s Journey with MariaDB

1. Peng Khim & Joan
Development Bank
of Singapore

2. DBS & MariaDB
Corporate Banking &
Future Ready Technology
26 February 2018
2
The presentations contain future-oriented statements, including statements regarding the
Group’s vision and growth strategy in the light of anticipated trends as well as economic
and market conditions. Such statements necessarily involve risks and uncertainties,
which may cause actual performance in future periods to differ from projections.

3. Disclaimer: The information contained in this document is intended only for use during the presentation and should not be disseminated or distributed to parties outside the presentation. DBS
Bank accepts no liability whatsoever with respect to the use of this document or its contents.
Be Digital to the Core

4. Being the in

5. Remember this?

7. Systematic multi-year effort to streamline
tech infrastructure
Customer focus and culture transformation
internally
Accelerated income growth driven by scale,
speed & efficiency
Gandalf Tech Transformation
Culture Transformation
Tech-driven business
1
2
3
Gandalf Technology and Culture Transformation
Moving from legacy company to tech company

8. With MariaDB,
we went down a path less travelled…
... and it’s now a highway in DBS.

9. Teller
Internet & Mobile Banking
Corporate Internet Banking
Customer Relationship Mgt
Customer
Private banking
Liquidity Management
Remittances
Unsecured loans
Secured loans
Trade Finance
Factoring
Treasury
Mgt Information Sys
Credit Approval
Finance
Singapore Hong Kong Taiwan Indonesia ChinaIndia
Overseas
BranchesCHANNELSPRODUCTS&SERVICESENABLERS
DBS application landscape in 2009

10. Teller
Internet & Mobile Banking
Corporate Internet Banking
Customer Relationship Mgt
Customer
Private banking
Liquidity Management
Remittances
Unsecured loans
Secured loans
Trade Finance
Factoring
Treasury
Mgt Information Sys
Credit Approval
Finance
Singapore Hong Kong Taiwan Indonesia ChinaIndia
Overseas
BranchesCHANNELSPRODUCTS&SERVICESENABLERS
By 2017…We’ve migrated to MariaDB

11. Migrated CAT 1 / 2 type applications66
Migrated CAT 3 / 4 type applications82
ELA signed with MariaDB to strengthen partnership2+1
Features introduced to make migration seamless30
Developers who are trained in MariaDB500
Our 2nd Anniversary with MariaDB

12. 0
100
200
300
400
500
600
700
800
Q4 2016 Q1 2017 Q2 2017 Q3 2017 Q4 2017 Q1 2018
INSTANCES
Key Banking Domains
using MariaDB
 Payments
 Trade
 Cash
 Channels
 Digital Bank Initiatives
 Customer
4
X
 700+ total deployments
 54% critical applications
 30+ Oracle features enabled in MariaDB
Increase
MariaDB Deployment Footprint

13. Once schema change is completed on cluster2, it’ll
be merged with data/records change in cluster 1.
Cluster 2 will be turned over to production.
(A) + (B) (A’) + (B)
(B’)
(A’)
(A’) + (B’)
Cluster 1
(blue)
Cluster 2
(green)
1
Transactions continue to be supported
by cluster 1, while schema changes
are applied to cluster 2.
Cluster 1 is converted to
standby mode.
3
2
 Currently, no zero downtime deployment for database schema change
 Ideally, continuous transactions while schemas changed using standby resources
 Then, to merge the schema change once verified as successful
Blue/Green Deployment for MariaDB

14. 14
Design template
Config parameters
Build profile Registry
Shared DB
Users
DevOps
Blue
Green
Switch
Note: B-G for
DB still under
exploration.
6
8
432
5
7
1
Container
orchestration
Registry
Blue/Green Deployment: Microservices
config.sit-V1
config.sit-V2
config.sit-Vn
JSONs
App Binary
Certificates
Build Profile
Transformation
Engine
V1
V2
Vn

15. Written Scanned Built
Tested and
verified
Deployed in
different
environments
Manual Automate Manual Automate Manual Automate
Manual Automate
Manual Automate
DEVELOPMENT
ENVIRONMENT
PRODUCTION
ENVIRONMENT
Manual
Automate
Manual
Automate
To introduce changes to production, code needs to
be…

16. 2014 2017
Volume of automated test executions
7.5x
10X
10x
100%
DevOps: % of automated application releases
2014 2017
100%
2014 2017
Cadence – No. of monthly deployments
7.5X
0
50
100
Aggressive automation has enabled us to move faster &
increase efficiency

17.  Sequences
 Views
 Packages
 Support for 38 decimal digits
 SQL Mode Oracle
 Support for PL/SQL
 Connection Pool – driver
 Solution for Custom Types
 Function based Index: Virtual
columns
 Solution for PIPE row/
ConnectBy
 Support for multiple triggers
Key Enablers

18. 2018 DBS-MariaDB Roadmap
MariaDB asof to
query historical
data
Data analytics
using MariaDB
ColumnStore
Sharding with
MariaDB Spider
Partition
by Status
Enable data
type
compatibility
(ColumnStore)
More
compatibility
certification with
software vendors
(SWIFT, IBM TX;
Kasisto)
Enable
parallelism
for stored
procedure
New Build
Available Features

20. ⬆10% in Customer satisfaction
Nielsen SME CE Survey 2017: 75%, outperforming others’ 56%
2x Faster user experience
Performance improvements
Zero downtime
Capability for maintenance and recovery
3x Capacity volume
Increase in system capacity for growth in customer base
$4.1m Net savings
5 year savings after initial investment
Corporate Internet Banking Platform - Performance
Improvements

21. 0 10 20 30 40 50 60 70 80
Bulk File Processing
Remittance Advice
Account Enquiry
Dashboard Loading
0 50 100 150 200 250 300 350
Auth Policy Selection
Approval Workflow
Records Selection
User Creation
Customers
Internal Users
2x
3x
2x
7x
14x
21x
44x
36x
Corporate Internet Banking Platform - Performance
Improvements

22. Allow longer (12 months) online transaction history retrieval
Embrace cloud technology
Minimal downtime
Total $4m net savings over 5 years
Enable Scalability running on virtual machine
Transaction Data Store - Performance Improvements

23. THANK YOU!