Presented at Open Source South Carolina Meetup Presented by Peter Zaitsev with Percona December 5th, 2018 Columbia, SC, USA

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Peter Zaitsev, CEO
Choosing Right Open Source
Database
December 5th, 2018
Open Source Meetup
Columbia,SC

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About Percona
Solutions for your success with MySQL,MariaDB,MongoDB and PostgreSQL
Support, Managed Services, Consulting, Training, Software
Our Software is 100% Free and Open Source
Support Broad Ecosystem – MySQL, MariaDB, Amazon RDS, Google CloudSQL
In Business for 12 years
More than 3000 customers, including top Internet companies and enterprises

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Open Source Databases
You do not need
convincing to chose Open
Source Database ?

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DB-Engines Ranking

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Open Source vs Commercial

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Stack Overflow Developers Survey
Source: https://insights.stackoverflow.com/survey/2018/

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Choose Database or Databases ?
There is no perfect database for every use case
Engineering Tradeoffs Ensure It
Large Applications often built using Multiple Databases
“Polyglot Persistence”

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Things to Consider
Majority of applications are not Google or Facebook
Majority of companies does not have their Team and
Resources
Their approaches might not be Fit for You

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Limit yourself
Start with one Database Technology
Add more technologies when
Absolutely Essential

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There is

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Boring is Good
Boring = Proven
Proven = Less Problems
What is Good for you ?

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So ?
How Do I chose small number of
boring but popular Open Source
Databases to build my application
in non-Facebook Way ?

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Buzz Words
Relational
(SQL)
No-SQL NewSQL
Big Data
Multi-
Model

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Popular NoSQL Categories
••RedisKey Value Store
••MongoDBDocument Store
••CassandraWide Column Store
••ElasticSearch Engine
••Neo4jGraph
••InfluxDBTime Series

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Cross-Polynation
MySQL, PostgreSQL add Document
Storage Support
Many databases provide SQL or SQL-
like language support

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Relational Databases

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Relational: SQL

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Relational Variants
••Good for reading few data points
••Easy to modify data
••Conventional “Web” Applications
Row Store
••Good for mass data analyses
••Data best modified in bulks
••Reporting/Analytics
Column
Store

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Document Data Model Example
Source: https://www.tutorialspoint.com/mongodb/mongodb_insert_document.htm

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Other Questions
“Disk” vs “Memory”
Single Node vs Distributed

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Q1: Application Data Model
What Database your
application Data Model and
Operations Bests maps to ?

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Not too Obvious Things to Consider
Application Life Cycle and
Development Process

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Q2: Scale

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Understanding Scaling
Any Technology Scales,
Just with different
efficiency and amount of
pain

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Q3: It is not just about development
Technology Long Term Viability
Availability of Commercial Support
Corporate Policies
Compliance (Security, Auditing etc)

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Open Source
Why care and how to evaluate ? Some of “Open Source Business” Practices

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Many Reasons to use OpenSource
What is it for you ?

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Reasons to use Open Source
Cost
Avoiding Vendor Lock-in
Innovation Possibility
Developer Community

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Types of Open Source License
Copyleft
••GPL, AGPL
Permissive
••BSD,
Apache, MIT
Public Domain
••Not Really a
License

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Open Source Governance
Community/Foundation
••Linux, Apache,
OpenStack, PostgreSQL
Corporation
••MySQL, MongoDB

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Open Source
Open Source for Real
vs
Open Source for Marketing

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Open Source Compatible
Products which are NOT Open
Source but Claim Open Source
Compatibility

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Free as on GitHub
Products which have source
available but which you can’t
legally

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Open Source… Eventually
Business Source License
(MariaDB Components)

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Open Source with Commons Clause
Tiny addition which makes license non Open
Used by Redis Labs for some of extensions
Redis Itself remains Open Source

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Open Core
Proprietary Software with Open Source Community Version
Community Version can be more or less Crippled
Percona Provides Open Source Alternatives for many Enterprise Features in
MySQL and MongoDB
Community Version is typically well maintained

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Builds and Updates – “Convenience”
Open Source License
does not require you to
provide “builds” for
everyone for free

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Warranty and Certification
Certification and
Warranty available only
with Subscription

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SSPL
New License used by MongoDB
Not recognized as Open Source
License (yet?)

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Practical Open Software Question
If I stop paying
subscription/license
what do I have to give up
?

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Cloud and Open Source
Cloud Vendors
Commercializing Open
Source Disrupts many
conventional Open Source
Business Models

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Thank You!