Installing Postgres on Linux

Installing Postgres on
Linux
A step-by-step approach
Devrim Gündüz
Marc Linster

Agenda
● Who is EDB?
● Why did we switch from one-click installers to native packages?
● Installing PostgreSQL and EDB Postgres Advanced Server on
CentOS or RHEL
● Installing PostgreSQL and EDB Postgres Advanced Server on
Debian/Ubuntu
● Q & A
● What’s next in Pulse on Postgres?

WHO IS EDB?
The world leader in
open-source based Postgres
software and services
4
• Founded in 2004
• Recognized RDBMS leader by:
• Gartner
• Forrester
• Customer base > 4000
• 300+ employees
• Offices worldwide
• Largest PostgreSQL
community leader

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

6
Customers working SMARTER, reducing RISK and being more PRODUCTIVE with EDB.
OVER 4,000 CUSTOMERS
U.S Customers
EMEA Customers APAC Customers
102
of the
Fortune 500
337
of the Forbes
Global 2000

EDB OPEN SOURCE LEADERSHIP
NAMED EDB OPEN SOURCE COMMITTERS AND CONTRIBUTORS
7
• CORE TEAM
• • •
• MAJOR CONTRIBUTORS • CONTRIBUTORS
Akshay
Joshi
Amul
Sul
Ashesh
Vashi
Dilip
Kumar
Jeevan
Ladhe
Mithun
Cy
Andres
Freund
Devrim
Gündüz
Thomas
Munro
Amit
Kapila
Bruce
Momjian
Dave
Page
Robert
Haas
Ashutos
h
Sharma
Rushabh
Lathia
- designates committers

EDB Postgres
Advanced
Server
Super set of PostgreSQL
All PostgreSQL features are available in
EDB Postgres Advanced Server
Managed fork, continuously synchronized
with PostgreSQL
When would you pick EDB
Postgres Advanced Server?
● Native PL/SQL compatibility, key
Oracle packages, pragma autonomous
transaction, query hints, etc.
● Resource Manager manages CPU and
I/O resources
● Session/System Wait Diagnostics
● EDB Loader for fast bulk loads
● Enhanced security features
○ Separate audit log
○ Native data redaction
○ Password policy management

Why did EDB and the Postgres community switch from one-click installers to
native packages?
Why Native Packages?

Issues with the installers: Maintenance
● Common libraries for all platforms
● OpenSSL, LDAP, etc.
● They don’t match the OS libraries
● Updating OS is not sufficient.
● Must update EPAS via installer, even for an SSL update!
● Compatibility issues while building software
● Linking libpq will be an issue
● Security updates!

Issues with the installers: Integration
● Does not integrate with the OS package
management systems (dnf, yum, apt, zypper)
− Separate update techniques
− Separate monitoring for updates

Issues with the installers: Performance
● “The lowest common denominator”
− Oldest libc library
− Older compiler versions

Target
● Be as close as possible to packaging guidelines
● Be as close to community packaging, and their
behaviour.
● Make things as consistent as possible between RPMs
and DEB packages
● Ease of use

Benefits of native packaging:
Maintenance
● Uses the OS libraries
● No separate update requirements
● Easily compile programs against EPAS
● Better linking with libpq

Maintenance
● Uses OS package management tools
● One monitoring platform for all packages
● Integration with Puppet, Chef, Satellite, Ansible, etc.
● Create feasible SELinux policies

Benefits of native packaging: Ease of
use
● Works pretty much the same with the community packages
● Same tools, with EDB prefixes:
● Ubuntu/Debian:
− pg_lsclusters → epas_lsclusters
− pg_createcluster → epas_createcluster
● Red Hat Enterprise Linux / CentOS:
− postgresql-11-setup → edb-as-11-setup
● Easy adoption to EDB packaages

Benefits of native packaging: Ease of
update
● Use the OS package manager to update EPAS:
● dnf/yum/apt/zypper …
● Easier than ever!

Benefits of native packaging: Tools
● EDB tools, like PEM, BART and EFM are already
packages as RPMs.
● Now Ubuntu/Debian!
● EDB native packages integrate with these tools!

Performance
● OS-supplied libc
● OS-supplied compiler

Community PostgreSQL
● Users of Windows/Mac still will use 1-click installers
● Community PostgreSQL repos have hundreds of thousands of
users already
● Community APT repos have 100+ packages
● Community RPM repos have 235+ packages
● https://www.PostgreSQL.org/download

Platform Support
• Ubuntu 18.04
• Debian 9
• Red Hat Enterprise
Linux 7
• CentOS 7
• Red Hat Enterprise
Linux 8 (WIP)
• CentOS 8 (WIP)
• SuSE Enterprise
Linux 12
• SuSE Enterprise
Linux 15 (TBC)

EnterpriseDB Repository
Access

EDB Repository Access
● EnterpriseDB RPM and DEB repositories require username/password
● You can obtain it from EnterpriseDB.com
● Login to website, click “Access repository” link in here:
○ https://www.enterprisedb.com/advanced-downloads
● Go to “My account” page to find username/password
● Demo time:

EDB Repository Access
● Please do not forget to note the username/password down.
● You will need them in next steps.

Step by step demo
Installing on CentOS/RHEL

>> Key Concepts <<
● EDB: Username/password required (the ones we noted down in the
previous step)
● Password-less install with PostgreSQL
● Repo RPM
● EDB Postgres Advanced Server Installation
● PostgreSQL installation
● How to proceed if you can’t access the EDB YUM repo from the DB
Server

Repository RPM: EDB
● https://yum.enterprisedb.com/
● Copy the “edb-repo” link
● Install the repo RPM to access EnterpriseDB RPM repos
● It includes URLs, and username/password information as well.
● Now, let’s run this:

Repository RPM: PostgreSQL
● https://yum.postgresql.org/repopackages.php
● Find the right operating system/architecture
● Let’s try!

Repository configuration: EDB
● As mentioned, we installed the repo RPMS.
● Contents go to /etc/yum.repos.d/edb.repo
● Now, let’s edit this file:

Repository configuration:
PostgreSQL
● One single repo RPM for all supported PostgreSQL releases
● EPEL dependency for GIS packages
● Contents go to /etc/yum.repos.d/pgdg-redhat-all.repo
● No need to edit this file for production usage.
○ Testing repositories exist.

Package installation: EDB
● Repositories are now configured.
● GIS packages require EPEL repo:
○ https://fedoraproject.org/wiki/EPEL#Quickstart
● Now, let’s install EPAS:

Package installation:
PostgreSQL
● GIS packages require EPEL repo:
○ https://fedoraproject.org/wiki/EPEL#Quickstart
● Now, let’s install PostgreSQL 11:

Post-installation
● RHEL/CentOS requires initdb
● RPMs provide scripts for this
○ EDB RPMs: /usr/edb/as11/bin/edb-as-11-setup initdb
○ PostgreSQL RPMs: /usr/pgsql-11/bin/postgresql-11-setup initdb
● After running initdb, we need to enable and start the service.
● Let’s do these:

Installing multiple major
versions
● EDB: Repo must be enabled.
● PostgreSQL: Already enabled.
● Same procedure, just version number changes.
● Port numbers must be different.
● Let’s do these:

Installing without network
access
● Tarballs available at EDB repositories
● Community repository has rsync support
● Dependencies must also be downloaded

Step by step demo
Installing on Debian/Ubuntu

● EDB: Username/password (the ones we noted down in the beginning)
● Password-less install with PostgreSQL
● Setting up the repository
● EDB Postgres Advanced Server installation
● PostgreSQL installation
>> Key Concepts <<

Repository configuration
● EnterpriseDB: A few commands, as noted in
https://apt.enterprisedb.com
● PostgreSQL: Similar commands, as instructed in
https://apt.enterprisedb.com
● Demo:

Package installation: EDB
● We can now install EPAS:

Package installation:
PostgreSQL
● We can now install EPAS:

Post-installation
● .deb packages take care of everything
○ Ports, directories
● Command line tools available to control the cluster:
○ pg_createcluster, pg_lsclusters, pg_ctlcluster, etc.
○ epas_createcluster, epas_lsclusters, epas_ctlcluster, etc.

Installing multiple major
versions
● Just run
○ apt-get install edb-as10
● Debian/Ubuntu packages does everything automagically

Q & A

Upcoming events
Pulse of
Postgres
Installing Postgres in
Docker Containers
Sept 25
Installing Postgres on
Windows
Oct 9

Installing Postgres on Linux

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