Cloud-Based Active/Active Tungsten MySQL Clusters @ Knowroaming KnowRoaming is a Telco provider that specializes in mobile roaming, i.e. complete connectivity solutions in 200+ countries and territories, offering a cost-effective, and reliable way for travelers to stay connected while traveling across the globe. KnowRoaming needed multiple active sites due to the continuous expansion of their payment system, which processes transactions worldwide. In addition, the business desired to leverage read/write splitting to distribute the load within their MySQL cluster, without any modification to their application. Before Continuent Tungsten Clustering, KnowRoaming was using Galera clusters but understood they could not achieve geo-distributed, multi-site, and multi-primary MySQL using Galera and synchronous replication. Watch this webinar replay with Continuent CEO Eero Teeerikorpi for a discussion on geo-distributed multiple primary MySQL clusters for Telco providers, and on how to cost-effectively provide worldwide mobile roaming access with cloud-based Tungsten MySQL clusters. AGENDA - Continuent Introduction - Geo-Distributed Active/Active MySQL Clusters with Five9s Availability for Telco Providers - Continuent Tungsten Solutions & Benefits - Key Benefit Highlight: Five9s MySQL - Q&A PRESENTER Eero Teerikorpi - Founder and CEO, Continuent - is a 7-time serial entrepreneur who has more than 30 years of high-tech management and enterprise software experience. Eero has been in the MySQL marketplace virtually since day one, from the early 2000s. Eero has held top management positions at various cross-Atlantic entities (CEO at Alcom Corporation, President at Capslock, Executive Board Member at Esker S.A.) Eero started his career as a Product Manager at Apple Computer in Finland in the mid-80s. Eero also owns and manages a boutique NOET Vineyards producing high-quality dry-farmed Cabernet Sauvignon. Eero is a former Navy officer and still an avid sailor on San Francisco Bay and around the world. Eero is a very active sportsman: a 4+ tennis player, a rookie golfer, a very careful mountain biker, and an experienced (40+ years) skier, both slalom and cross-country.

1. The MySQL Availability Company
CONTINUENT
Geo-Scale Five9s MySQL – Worldwide Mobile Roaming Solution
Break Away From Geo-Limitations of Galera With Multi-Region Tungsten Cloud Databases
Eero Teerikorpi, Founder and CEO
October 28, 2020
“Smooth Sailing!”

2. Continuent
“The MySQL Availability Company”

3. Use Case – Geo-Scale Galera (Five9s MySQL)
KnowRoaming provides the best, most cost-
effective, and reliable way to stay connected
while travelling across the globe. Fraction of
roaming fees for voice, data, and SMS in 200+
countries and territories around the world.
KnowRoaming was using Galera clusters but
understood they could not achieve geo-
distributed, multi-site, and active/active
MySQL using Galera and synchronous
replication.
They opted for Tungsten Clustering instead in
order to cost-effectively provide worldwide
mobile roaming access for millions of mobile
phones with cloud-based Tungsten MySQL
clusters.

4. Eero Teerikorpi
7-Time Serial Entrepreneur
In the MySQL marketplace since the
beginning (2002)
Father of Continuent Tungsten and
Godfather of Galera (XtraDB Cluster)
Galera is based on Continuent’s first (synchronous)
MySQL clustering solution m/cluster
Officer
(and naturally a Gentleman) Finnish Navy
Sailor
Running a Tight Ship!
“Smooth Sailing!
Steady as she goes!”

5. Where Does Continuent Fit In?
Continuent has witnessed the rise of Open
Source and Cloud Computing since 2004.
We have been at the forefront of the market
need for platform-agnostic, highly-available,
globally-scaling, clustered MySQL databases
that are driving businesses to the cloud today.
Continuent is not the biggest. Never.
We are the best at what we do. Always!
Geo-Scale
MySQL
DBaaS
Cloud
Computing
Open
Source
MySQL

6. KNOWROAMING USE CASE
Five9s MySQL - Worldwide Roaming Access for Millions of Mobile Phones.

7. Question: Why Did KnowRoaming
Choose Continuent?
What do you think were the key reason(s)
that KnowRoaming chose to replace Galera with Tungsten?
• Availability
• Disaster Recovery
• Geo-Scale
• Cost
• All of the Above

8. Why Did KnowRoaming Choose Continuent?
All of the Above

9. KnowRoaming Challenge
High
Availability
Disaster
Recovery
CostGeo-Scale

10. Galera Advantages – a Dream Come True?
• True Multi-master: Active-Active Local Cluster. Read and
write to any node at any time.
• Synchronous Replication: No replica lag. No data loss at a
node crash.
• Tightly Coupled: All nodes hold the same state. No
diverged data between nodes allowed.
• Multi-threaded: Replica for better performance. For any
workload.
• No Primary Failover Operations or Use of VIP.
• Hot Standby: No downtime during failover (since there is no
failover).
• Automatic Node Provisioning: No need to manually back up
the database and copy it to the new node.
• Transparent to Applications: Required no (or minimal
changes) to the application.
• No Read/Write Splitting Needed.

11. Galera Disadvantages – Too Good to Be True!
• No Multi-Site Active/Active, No DR. Adding another site
requires async replication, makes the deployment much
more complex.
• No Geo-Scale: Synchronous replication will have serious
performance issues over a WAN.
• Write Performance: Synchronous Replication can cause write
intensive workloads to perform poorly.
• “Hot Spots' in the database can cause rollbacks and/or
degraded performance due to transaction certification.
• No Proxy. A 3rd party proxy is needed, which adds
complexity to the deployment.
• Cluster crawl. A slow node will slow down the entire cluster.
• No Replication out. Requires enable binary logging, which
impacts cluster performance, and adds complexity.
• Limited support. Not adequate for business-critical
deployments.

12. Galera vs Tungsten Clustering Scorecard
Top prioritized
use cases
Tungsten
Clustering
Galera Cluster
(aka XtraDB Cluster)
Local HA
Yes, automatic
failover for primary
and replicas
Failover not
necessary
DR (local/
remote)
Yes, local, remote
and global DR are
supported
No DR.
DR with async but
without
management
Load balancing
Yes, automatic and
transparent
Only supported with
a Proxy tool (ie HA
Proxy)
Zero downtime
maintenance
Enables both
database, operating
system and
hardware changes
Changes are
supported, but can
be costly and time
consuming

13. Galera vs Tungsten Clustering Scorecard
Top prioritized
use cases
Tungsten
Clustering
Galera Cluster
(aka XtraDB Cluster)
Performance
High, built-in load
balancing and
read/write splitting
Synchronous nature
implies additional
overhead during
writes
Transparency
Yes, automatic
failover for primary
and replicas
Requires app made
aware of changes
Deployment Easy to deploy
Complex, easier with
GUI or 3rd party
ClusterControl
Recovery
Fast and simple, local
and cross region
Time consuming,
potentially blocking
donor node

14. Galera vs Tungsten Clustering Scorecard
Top prioritized
use cases
Tungsten
Clustering
Galera Cluster
(aka XtraDB Cluster)
Monitoring
Full monitoring via
web-based GUI
3rd party tool like
ClusterControl or
Galera Manager
(released <1 month)
Geo-Scale
Across regions,
availability zones
No Geo-scale with
Sync. Async option
without
management layer
Replication
To most popular
high-performance
NoSQL and data
analytics engines
Synchronous locally,
async globally,
manual setup
Support
24/7 with <5 min.
initial response to
urgent support
tickets
Support through
MariaDB,Percona,
Codership < 4HR
response

15. KnowRoaming Main Challenge – Geo-Scale
Need for High Availability and Continuous
Operations on a Global Scale
KnowRoaming is a global telco company with
several thousand corporate customers and
hundreds of million worldwide users.
Serving an application for a geographically-
distributed audience is a common need
global companies.

16. KnowRoaming Challenge – Availability
What Is the Key to Success for Availability?
Tungsten Proxy (aka Tungsten Connector) –
The Intelligent MySQL Proxy
Tungsten Proxy allows client MySQL traffic to
be seamlessly routed to another node during
maintenance operations and failovers,
providing maximum control and uptime.
Combine that with Tungsten Manager and
Tungsten Replicator for power at every layer. Manager
Replicator
Manager
Replicator
Manager
Replicator
monitoring&control
Dataservice
Replica ReplicaPrimary

17. KnowRoaming Challenge – Continuous Operations (DR)
How are Continuous Operations achieved?
Active-Active Tungsten Cluster using un-
managed cross-site replicators
All three clusters are truly “active"
Provides fast failover in the event of Data
Center outage: only application servers in
“other” DC need starting and connect through
Applications are read/write aware by use of
RW and RO connect strings, the Tungsten
Proxy configured with Port Based routing
Tungsten Connectors are installed on app
servers
MySQL HA and DR
Active/Active Tungsten Clusters

18. KnowRoaming Tungsten Dashboard – Geo-Scale
MySQL

19. KnowRoaming Tungsten Dashboard – Geo-Scale
MySQL

20. KnowRoaming Solution – Tungsten Clustering
The benefits Continuent customers achieve with
our Tungsten Clustering solution are:
High-availability, continuous operations, and
performance, at a very reasonable cost level.
Industry’s fastest 24/7 Support by the best MySQL
Replication and Clustering Engineering Team.
Availability
Disaster Recovery
Geo-Scale
Cost
24/7 Support

21. Continuent Products
• Tungsten Clustering
• Tungsten Replicator
• Tungsten Dashboard

22. Continuent Products
• Tungsten Clustering
• Tungsten Replicator
• Tungsten Dashboard

23. Continuent Products
• Tungsten Clustering
• Tungsten Replicator
• Tungsten Dashboard
• Continuous MySQL Operations
• Zero Downtime Maintenance
• Geo-distributed MySQL Clusters
• Multi-Cloud / Hybrid-Cloud MySQL
• Read/Write Splitting with Intelligent Proxy
• Full MySQL Support, No App Changes

24. Tungsten Clustering Key Benefits
Industry Best 24/7 MySQL Customer Service
• Highly Qualified 24/7 support. Our support team member have 15 or more years of MySQL DBA and
Site Reliability Experience
• 24/7 support comes with 1-hour SLA, with response times for urgent requests averaging less than 3
minutes
• MySQL uptime measured in months or years
Cost Savings
• Use the free open-source MySQL for your business-critical needs
• Optimize costs by selecting the most cost-effective cloud environment(s) at any given time
• Eliminate downtime risks and their associated costs, including during maintenance operations (zero-
downtime maintenance operations)
• Reduce DBA time spent on admin and recovery operations, lowering your costs while increasing
reliability.

25. Tungsten Clustering Key Benefits
Continuous MySQL Operations
• MySQL High Availability and Disaster Recovery solution, which provides redundancy within and
across data centers
• Immediate failover for maximum availability and data protection of business-critical MySQL
applications
• Reduce MySQL recovery time from hours or days to mere seconds
• Dashboard provides graphical view and management of all globally distributed MySQL clusters
Zero Downtime MySQL
• Site-level and cross-site failover ensures application availability
• Upgrade hardware, software and data without taking applications offline
• MySQL compatibility means seamless migration of your data and applications

26. Geo-Scale MySQL
Tungsten Clustering Key Benefits
• Load-balance MySQL read operations across multiple slaves, locally and globally
• Geo-distributed MySQL clusters bring data close to your application users for faster response times
• Easily add more MySQL clusters as needed for unlimited scaling, both locally or across the globe
Hybrid-Cloud and Multi-Cloud MySQL
• Deploy in the cloud, VM and bare metal environments
• Mix-and-match on-premises, private and public clouds (incl. Amazon AWS, Google Cloud and
Microsoft Azure)
• Easy, seamless migration from cloud to cloud to avoid vendor lock-in in any specific cloud provider
• Withstand node, data center, zone or region failures or outages

27. Tungsten Clustering Key Benefits
Intelligent MySQL Proxy
• Provides intelligent traffic routing to a valid MySQL Primary, locally and globally
• Scale read queries via query inspection and other methods
• Application and active users do not disconnect during MySQL master failover events
Most Advanced MySQL Replication
• Filter and transform your data in-flight
• No more ETL, get real-time data feeds into your analytics
• Replicate directly into popular analytic repositories: AWS RedShift, Hadoop (HDFS), Kafka and Vertica
• Unlimited real-time transactional data transfer to eliminate escalating replication cost of ETL-based
alternatives

28. Tungsten Clustering Key Benefits
Full MySQL Support, No Application Changes
• Deploy and Configure MySQL clusters in minutes
• Not just a ‘MySQL-compatible” solution, but fully MySQL-compliant. Use any of your off-the-shelf
MySQL, MariaDB and Percona Server versions
• Support for all modern MySQL (5.x through 8.x) and MariaDB (5.x and 10.x) versions and features
• SSL support for all in-flight traffic
• Native MySQL support means easy and complete migration of your data and applications

29. Continuent Products
• Tungsten Clustering
• Tungsten Replicator
• Tungsten Dashboard

30. Continuent Products
• High performant Real-Time replication
• Multiple Heterogeneous Targets
• AWS Aurora / RDS
• AWS Redshift
• HPE Vertica
• Hadoop
• Kafka
• and many more
• Fan-in / Fan-Out / Primary-Primary
• Flexible, Advanced Filtering
• Available as an AMI through Amazon
Marketplace (with free 14-day trial)
• Tungsten Clustering
• Tungsten Replicator
• Tungsten Dashboard

31. Continuent Products
• Tungsten Clustering
• Tungsten Replicator
• Tungsten Dashboard

32. Question: Are You Looking for
MySQL HA/DR?
• Yes, we're actively investigating a MySQL Availability solution
• Yes, we have a MySQL HA/DR in place, but we are not happy with it
• No, we already have a MySQL HA/DR solution we are happy with
• Not right now, but it is in our future plans
• No, I'm here to educate myself

33. Proven Continuent Team
• Our core team has been building data availability solutions since 2004
• We have an expert team of data replication, database connectivity and database cluster management
engineers
• We have a world-class support team
• Each member with 20 or more years of operational database experience
• Our team is available to respond effectively and immediately to our customers’ needs
• Average response time for an urgent support request less than 3 minutes

34. Proven Solutions
Our tightly-integrated, complete and fully tested solutions reliably handle billions of transactions per
day and support businesses with billions of dollars in combined revenue:

35. Why Choose Continuent
Customer Satisfaction
during the most recent customer survey
Customer Renewal Rate
many multi-year subscription renewals
Average Response Time
in minutes for urgent customer support
cases
Average Customer
Life-Span
years using Continuent solutions

36. In Summary
• The MySQL Availability Company
• Established in 2004
• Customers Industries include
• SaaS
• eCommerce
• Finance
• Telco
• Online Gaming
• Business-critical MySQL apps
• From Startup to Enterprise companies
2004 Continuent Established
2009 3rd Generation Continuent Tungsten, the first
fully MySQL-compliant clustering solution
2014 VMware Acquired Continuent to build
DBaaS for vCloud Air
2016 “New” Continuent breaks away from VMware
(after they abandoned vCloud Air)
2017 Major Tungsten release (v5) with hardened
security features
2018 Tungsten v6 ships with major multi-site
clustering changes
2020 Marketo is the first 10th anniversary Tungsten
customer (grown from 4 clusters to over 100
clusters)
202x The Future….is in the Cloud – Tungsten Cloud

37. Q&A
“Smooth Sailing!”

38. THANK YOU FOR LISTENING
continuent.com
The MySQL Availability Company
Eero Teerikorpi
October 28, 2020