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  • Book Overview & Buying PostgreSQL Administration Essentials
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PostgreSQL Administration Essentials

PostgreSQL Administration Essentials

By : Hans-Jürgen Schönig
3.1 (8)
Buy this Book
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PostgreSQL Administration Essentials

PostgreSQL Administration Essentials

3.1 (8)
By: Hans-Jürgen Schönig
Buy this Book

Overview of this book

If you are a database administrator who needs to get to grips with PostgreSQL quickly and efficiently, then this book is for you. This book will also be highly beneficial if you are a project leader or a developer who is interested in knowing more about database systems or bottleneck detection, as it will enable you to work more closely and cooperatively with your administrators.
Table of Contents (9 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Installing PostgreSQL
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1. Installing PostgreSQL
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Preparing your setup
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Understanding the existing databases
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Creating databases
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Summary
2
2. Indexing and Performance Tuning
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2. Indexing and Performance Tuning
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Using simple binary trees
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Understanding the concept of execution plans
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Dealing with different types of indexes
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Detecting missing indexes
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Detecting slow queries
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Adjusting memory parameters
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Summary
3
3. Users and Permissions
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3. Users and Permissions
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Understanding PostgreSQL security
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Summary
4
4. Managing Logfiles
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4. Managing Logfiles
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Understanding the PostgreSQL log architecture
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Configuring the amount of log output
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Making log creation more fine grained
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Summary
5
5. Backup and Recovery
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5. Backup and Recovery
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Importing and exporting data
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Performing backups
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Summary
6
6. Handling Replication and Improving Performance
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6. Handling Replication and Improving Performance
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Understanding the PostgreSQL transaction log
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Configuring the checkpoints
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Setting up an asynchronous replication
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Upgrading to synchronous replication
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Improving and monitoring the replication
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Handling point-in-time recovery
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Understanding timelines
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Summary
7
7. Monitoring PostgreSQL
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7. Monitoring PostgreSQL
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Understanding the system statistics of PostgreSQL
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Integrating Nagios
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Handling Linux cgroups
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Summary
8
Index
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Index

Handling Linux cgroups

Many users run PostgreSQL on Linux. In case you are running more than just PostgreSQL on your system, it can be a good idea to sandbox PostgreSQL in a Linux kernel control group (cgroup) to make sure that the operating system statistics for PostgreSQL are somewhat isolated from the rest of the system. Sandboxing also makes a lot of sense, if there is more than one PostgreSQL instance on the same box. The key benefits are:

  • Data for different instances is accounted for separately

  • Hardware resources can be assigned to various instances directly

  • A system going nuts won't eat resources from other systems

All these benefits make cgroups an investment worthwhile.

Setting up cgroups

Before we can dig into configuring cgroups, it is necessary to make sure that all important packages are present on the system.

On Fedora, the following line is needed to enable cgroups:

yum install libcgroup

On Ubuntu or Debian, the following line will solve the problem:

apt-get install cgroup-bin

Once...

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