Organizations are deploying Postgres for an increasing array of important applications. As a result, operations teams, developers and DBAs need a deeper understanding of the tools and options for maintaining high availability. This online workshop will explore: - Native Postgres availability options - The challenge of high availability for Postgres - Comparison on high availability tools Join EnterpriseDB’s Marc Linster, SVP of Product Development, and Bobby Bissett, Java Architect, to gain the knowledge you need to maintain a mission-critical database with minimal downtime.

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High Availability
Strategies for
Postgres
Bobby Bissett, Lead Architect, EDB Failover
Manager
Marc Linster, SVP, Product Development
and Support
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AGENDA
• Who is EDB?
• EDB Postgres Platform
• High Availability for Postgres
• What are the challenges in failover?
• EDB Failover Manager
• Architecture
• EFM step-by-step
• Demo
• Q & A

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WHO IS EDB?
The world leader in
open-source based Postgres
software and services.
• Founded in 2004
• Recognized RDBMS leader by:
• Gartner
• Forrester
• Customer base > 4000
• 300+ employees
• Offices worldwide
• PostgreSQL community leader
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OVER 4,000 CUSTOMERS
U.S Customers
EMEA Customers APAC Customers
92
of the Fortune 500
311
of the Forbes
Global 2000
Our customers benefit from the most reliable, high-performing, flexible, open,
and cost-effective data management platform available.

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5
ONLY OPEN SOURCE
BASED RDBMS IN
GARTNER MQ
EDB Recognized
6 Years In A Row on
Gartner’s Magic
Quadrant

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EDB OPEN SOURCE LEADERSHIP
Named EDB open source committers and contributors
CONTRIBUTORS
Akshay Joshi Amul Sul Ashesh Vashi Ashutosh
Sharma
Dilip Kumar Jeevan Ladhe Mithun Cy Rushabh
Lathia
MAJOR CONTRIBUTORSCORE TEAM
Andres Freund Devrim Gündüz
Thomas Munro
Amit Kapila
Bruce Momjian
Dave Page
Robert Haas
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EDB POSTGRES PLATFORM

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EDB POSTGRES ADVANCED SERVER
Enterprise
capabilities add to
the strengths of
community
PostgreSQL
• Items in GREY are available
in Community PostgreSQL
• Items in RED are proprietary
additions in Advanced Server

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Why a Platform?
Why not Open Source Components?
HighAvailability
Monitoring and Management
DisasterRecovery
Data Integration
Open PostgreSQL Monitoring
pgAdmin
phpPgAdmin
repmgr
HandyRep
PgHA
Slony
Bucardo
LondisteBDR
BARManpg_rman
TeamPostgreSQ
L OmniPITR
Circonus
pgBadger
pgFouine
powa
pitrery
wal-e
• Multiple vendors, with different SLAs and different license models
(PostgreSQL, GPL, AGPL, BSD)
• Cook your own meal or go to a restaurant? (https://www.cbronline.com/opinion/postgres-in-house-
bruce-momjian)
check_postgres
PITRTools
Nagios XI wizard
pgLogical
pgBackRest
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EDB POSTGRES PLATFORM
Today’s Focus

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Postgres HA Options
● Ignore the issue and hope for the
best
● Shared disk clusters (with
fencing)
● Streaming replication w. manual
failover
● Streaming replication with
automated detection and failover
● Logical replication

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High Availability Challenges: Failover
● False Failover
● Split Brain
● Maintenance/Switchover
● Automation
● Properly Written Applications

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EFM ARCHITECTURE COMPONENTS
Master Database Node
1-n Standby Database Nodes (streaming replicas)
1-n Agents
• Run on the Master, Standby and Witness nodes
• Monitor the health of Master and Standby databases
• Talk with each other and Witness to determine cluster health
• Notify DBA of all cluster status changes when detected
• Initiate failover when needed

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EDB Failover Manager: Architecture

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EDB Failover Manager: Step by Step

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EDB Failover Manager Demo

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Monitoring
EFM from
Postgres
Enterprise
Manager

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Learn more and download today
https://www.enterprisedb.com/enterprise-postgres/edb-postgres-failover-manager

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Questions and Answers

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THANK YOU
info@enterprisedb.com
www.enterprisedb.com
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