EnterpriseDB (EDB) delivers an open source database platform for new applications, cloud migration, modernization, and legacy migration. EDB Failover Manager 3.6 provides high availability and failover capabilities for PostgreSQL databases. It supports various Linux distributions and has prerequisites of Java, streaming replication, firewall configuration. The architecture includes a master, standby, witness, agent, VIP, and JGroups. New features and tunable properties are discussed for user requirements and different failover scenarios.

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THE DATABASE PLATFORM COMPANY FOR DIGITAL BUSINESS
EnterpriseDB (EDB) delivers the premier open source-based, multi-model data platform for new applications, cloud
re-platforming, application modernization, and legacy migration.
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EDB Failover Manager 3.6
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Saurabh V. Shelar
Sr. System Engineer

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Supported Platforms
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• CentOS 6.x and 7.x
• Red Hat Enterprise Linux 6.x and 7.x
• Oracle Enterprise Linux 6.x and 7.x
• Red Hat Enterprise Linux (IBM Power8
Little Endian or ppc64le) 7.x
• Debian 9
• SLES 12
• Ubuntu 18.04

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Prerequisites To Configure
EFM
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• Java 1.8 (and Higher)
• Streaming Replication Setup
• Appropriate pg_hba entries.
• SMTP configuration.
• Firewall opened for specific ports.

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EFM Architecture
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1. Master
2. Standby
3. Witness
4. Agent
5. VIP
6. JGroups

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What’s New ?
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1. Change in behaviour of “db.bin”.
2. Db.config.dir
3. Additional information about WAL records.
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Tuneable Properties For
User Requirements
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Database Configuration:
• jdbc.sslmode (disable, verify-ca, require)
• db.reuse.connection.count
Custom Monitoring:
• script.custom.monitor
• custom.monitor.interval
• custom.monitor.timeout
• custom.monitor.safe.mode
EFM Configuration:
• is.witness (true,false)
• user.email
• auto.reconfigure
• auto.failover
• master.shutdown.as.failure
• script.load.balancer.attach (=/somepath/attachscript %h %t)
• script.load.balancer.detach
TimeOut Configuration:
• local.period
• local.timeout
• local.timeout.final
• remote.timeout
•node.timeout
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Supported Failover
Scenarios
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• SwitchOver
• Standby Database Down
• EFM Standby Agent Down
• EFM Witness Agent Down
• EFM Master Agent Down
• Master Database Down
• Isolation Of Nodes

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Standby Database Down
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local.period
local.timeout.property
local.timeout.final
remote.timeout

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Standby EFM Agent Down
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user.email

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Witness EFM Agent Down
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user.email

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Master EFM Agent Down
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user.email

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Master Database Down
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local.period
local.timeout.property
local.timeout.final
remote.timeout

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Isolation Of Nodes
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local.period
local.timeout.property
local.timeout.final
remote.timeout
node.timeout

15. THANK YOU
info@enterprisedb.com
www.enterprisedb.com
CONFIDENTIAL © Copyright EnterpriseDB Corporation, 2019. All rights reserved.