ProxySQL is a proxy for MySQL. It supports MySQL InnoDB Cluster natively.

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2. Another HA Solution for ProxySQL Users
Easy and All Integrated: MySQL InnoDB Cluster
Frédéric Descamps
MySQL Community Manager
October 2019
Copyright @ 2019 Oracle and/or its affiliates.
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3.
Safe Harbor
The following is intended to outline our general product direction. It is intended for information purpose only, and
may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality,
and should not be relied up in making purchasing decisions. The development, release, timing and pricing of any
features or functionality described for Oracle´s product may change and remains at the sole discretion of Oracle
Corporation.
Statement in this presentation relating to Oracle´s future plans, expectations, beliefs, intentions and ptospects
are "forward-looking statements" and are subject to material risks and uncertainties. A detailed discussion of
these factors and other risks that a ect our business is contained in Oracle´s Securities and Exchange
Commission (SEC) lings, including our most recent reports on Form 10-K and Form 10-Q under the heading
"Risk Factors". These lings are available on the SEC´s website or on Oracle´s website at
h p://www.oracle.com/investor. All information in this presentation is current as of September 2019 and Oracle
undertakes no duty to update any statement in light of new information or future events.
Copyright @ 2019 Oracle and/or its affiliates.
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4. about.me/lefred
Who am I ?
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5. Frédéric Descamps
@lefred
MySQL Evangelist
Managing MySQL since 3.23
devops believer
living in Belgium 🇧🇪
h ps://lefred.be
Copyright @ 2019 Oracle and/or its affiliates.
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6. MySQL InnoDB Cluster
"A single product — MySQL — with high availability and scaling features baked in;
providing an integrated end-to-end solution that is easy to use."
Copyright @ 2019 Oracle and/or its affiliates.
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7. MySQL InnoDB Cluster
"A single product — MySQL — with high availability and scaling features baked in;
providing an integrated end-to-end solution that is easy to use."
Copyright @ 2019 Oracle and/or its affiliates.
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8. Components:
MySQL Server
MySQL Group Replication
MySQL Shell
MySQL Router
MySQL InnoDB Cluster
"A single product — MySQL — with high availability and scaling features baked in;
providing an integrated end-to-end solution that is easy to use."
Copyright @ 2019 Oracle and/or its affiliates.
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9. One Product: MySQL
All components created together
Tested together
Packaged together
MySQL InnoDB Cluster - Goals
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10. One Product: MySQL
All components created together
Tested together
Packaged together
Easy to Use
One client: MySQL Shell
Easy packaging
Integrated orchestration
Homogenous servers (*)
Secure automatic provisioning
MySQL InnoDB Cluster - Goals
Copyright @ 2019 Oracle and/or its affiliates.
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11. One Product: MySQL
All components created together
Tested together
Packaged together
Easy to Use
One client: MySQL Shell
Easy packaging
Integrated orchestration
Homogenous servers (*)
Secure automatic provisioning
Flexible and Modern
SQL and NoSQL together
Protocol Bu ers
Asynchronous API
Developer friendly
MySQL InnoDB Cluster - Goals
Copyright @ 2019 Oracle and/or its affiliates.
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12. One Product: MySQL
All components created together
Tested together
Packaged together
Easy to Use
One client: MySQL Shell
Easy packaging
Integrated orchestration
Homogenous servers (*)
Secure automatic provisioning
Flexible and Modern
SQL and NoSQL together
Protocol Bu ers
Asynchronous API
Developer friendly
Completely Open Source -- GPL!
No license required to have High Availability
MySQL InnoDB Cluster - Goals
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13. Heart of MySQL InnoDB Cluster
MySQL Group Replication
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14. MySQL Group Replication
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15. High Available Distributed MySQL database
Open Source -- GPL
Distributed fault tolerance
Automatic failover
Active/Active update anywhere (limits apply)
Automatic membership con guration
Adding/removing members
Network partitions, failures
Con ict detection and resolution
Prevents data loss
MySQL Group Replication
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16. MySQL Group Replication
Implementation of Replicated Database State Machine
Total Order - Writes
XCOM - Paxos implementation
Con gurable Consistency Guarantees
eventual consistency
8.0+: per session & global read/write consistency
Using MySQL replication framework by design
binary logs, relay logs
GTIDs: Global Transaction IDs
Generally Available since MySQL 5.7
Supported on all platforms: linux, windows, solaris, macosx, freebsd
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17. MySQL Group Replication - Consistency
Default consistency guarantee is EVENTUAL
Write some data on nodeA,
Read same data immediately on nodeB,
data might be there yet... or not yet.
(Writes remain ordered and write consistency is never compromised)
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18. MySQL Group Replication - Consistency
Default consistency guarantee is EVENTUAL
Write some data on nodeA,
Read same data immediately on nodeB,
data might be there yet... or not yet.
(Writes remain ordered and write consistency is never compromised)
This is a reason why ProxySQL 2.0 implemented GTID Consistent Reads
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19. MySQL Group Replication - Consistency
Consistency level is con gurable since MySQL 8.0.14 The scope can be SESSION or GLOBAL.
The possible values are:
EVENTUAL (default)
BEFORE_ON_PRIMARY_FAILOVER
BEFORE
AFTER
BEFORE_AND_AFTER
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20. MySQL Group Replication - Consistency
Consistency level is con gurable since MySQL 8.0.14 The scope can be SESSION or GLOBAL.
The possible values are:
EVENTUAL (default)
BEFORE_ON_PRIMARY_FAILOVER
BEFORE
AFTER
BEFORE_AND_AFTER
Now the application can de ne the required consistency !
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21. Consistency : EVENTUAL
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22. Consistency : BEFORE
BEFORE READ or WRITE: wait for all trx to be applied
Impact on READ & WRITE: added response time: at least network latency
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23. Consistency : AFTER
AFTER WRITE: wait for all trx to be applied
Impact on WRITE only: added response time: at least network latency
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24. Consistency : BEFORE_AND_AFTER
BEFORE READ or WRITE: wait for all trx to be applied
AFTER WRITE: wait for all trx to be applied
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25. provides transparent routing between your application
and back-end MySQL Servers
MySQL Router
Copyright @ 2019 Oracle and/or its affiliates.
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26. provides transparent routing between your application
and back-end MySQL Servers
Transparent Access to Database Architecture
Open Source -- GPL
Transparent client connection routing
Load balancing
Application connection failover
Stateless design o ers easy HA client routing
Router as part of the application stack
Native support for InnoDB clusters
Understands Group Replication topology
Utilizes metadata schema on each member
Currently TCP Port each for PRIMARY and NON-
PRIMARY tra c
MySQL Router
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27. MySQL Router
Con gure MySQL Router:
# mysqlrouter --bootstrap mysql1:3306
# systemctl start mysqlrouter
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28. data unit layers
Data
Data
Data
Segments
Packets
Frames
Bits
Application
Network Process to Application
Presentation
Data Representation
and Encryption
Session
Interhost Communication
Transport
End-to-End Connections
and Reliability
Network
Path Determination and
Logical Addressing (IP)
Data Link
Physical Addressing
(MAC and LLC)
Physical
Media, Signal and
Binary Transmission
HostLayersMediaLayers
1
2
3
4
5
6
7
Router
ProxySQL
MySQL Router VS ProxySQL
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29. data unit layers
Data
Data
Data
Segments
Packets
Frames
Bits
Application
Network Process to Application
Presentation
Data Representation
and Encryption
Session
Interhost Communication
Transport
End-to-End Connections
and Reliability
Network
Path Determination and
Logical Addressing (IP)
Data Link
Physical Addressing
(MAC and LLC)
Physical
Media, Signal and
Binary Transmission
HostLayersMediaLayers
1
2
3
4
5
6
7
Router
ProxySQL
MySQL Router VS ProxySQL
MySQL Router is a TCP Level 4 router, it
doesn't understand the MySQL protocol
MySQL Router can only take decision on
routing the tra c related to the TCP port used
ProxySQL is a TCP Level 7 proxy, it
understands the MySQL protocol
ProxySQL can take decision related to the user
connecting or regular expressions on the
statement performed
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30. ProxySQL and MySQL InnoDB Cluster
ProxySQL supports natively MySQL Group Replication (was the rst !)
ProxySQL doesn't use the meta-data of MySQL InnoDB Cluster natively (*)
ProxySQL is very e cient and has many features not included in MySQL Router:
Transparent Read/Write Spli ing
Mirroring
Multiplexing
Query Caching
ProxySQL as TCP/7 proxy, is less secure (passwords stored in clear text)
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31. MySQL Shell provides the developer and DBA with a
single intuitive, exible, and powerful interface for all
MySQL related tasks!
MySQL Shell
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32. MySQL Shell provides the developer and DBA with a
single intuitive, exible, and powerful interface for all
MySQL related tasks!
Database Administration Interface
Open Source -- GPL
Multi-Language: JavaScript, Python, and SQL
Naturally scriptable
Supports Document and Relational models
Exposes full Development and Admin API
Classic MySQL protocol and X protocol
MySQL Shell
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33. MySQL Shell in Action !
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34. MySQL Shell and ProxySQL
It's possible to extend MySQL Shell with plugins.
The follwing example on how to add ProxySQL support in the MySQL Shell can be found
on github:
h ps://github.com/lefred/mysqlshell-plugins
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35. MySQL Shell and ProxySQL
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36. MySQL Shell and ProxySQL
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37. MySQL Shell and ProxySQL
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38. MySQL Shell and ProxySQL
Copyright @ 2019 Oracle and/or its affiliates.
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39. MySQL Shell and ProxySQL
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40. MySQL Shell and ProxySQL
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41. Thank you !
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