Browse Library
Sign In Start Free Trial
Close icon Search icon
Account
Browse Library Advanced Search Sign In Start Free Trial

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Troubleshooting PostgreSQL
  • Table Of Contents Toc
  • Feedback & Rating feedback
Troubleshooting PostgreSQL

Troubleshooting PostgreSQL

By : Hans-Jürgen Schönig
4.2 (5)
Buy this Book
close
close
Troubleshooting PostgreSQL

Troubleshooting PostgreSQL

4.2 (5)
By: Hans-Jürgen Schönig
Buy this Book

Overview of this book

If you are a database administrator looking for solutions to common PostgreSQL problems, this is the book for you. The book is suitable for people with intermediate and professional expertise.
Table of Contents (12 chapters)
close
close
close
Preface
Icon
Preface
Icon
What this book covers
Icon
What you need for this book
Icon
Who this book is for
Icon
Conventions
Icon
Reader feedback
Icon
Customer support
Lock Free Chapter
1
1. Installing PostgreSQL
Icon
1. Installing PostgreSQL
Icon
Deciding on a version number
Icon
Methods of installing PostgreSQL
Icon
Memory and kernel issues
Icon
Adding checksums to a database instance
Icon
Preventing encoding-related issues
Icon
Avoiding template pollution
Icon
Summary
2
2. Creating Data Structures
Icon
2. Creating Data Structures
Icon
Grouping columns the right way
Icon
Deciding on data types and structure
Icon
Deciding on normalization
Icon
Summary
3
3. Handling Indexes
Icon
3. Handling Indexes
Icon
Understanding indexes in PostgreSQL
Icon
Avoiding trouble with indexes
Icon
Solving common problems
Icon
Handling LIKE queries
Icon
Finding good matches
Icon
Fixing full-text search
Icon
Summary
4
4. Reading Data Efficiently and Correctly
Icon
4. Reading Data Efficiently and Correctly
Icon
Understanding the power of NULL
Icon
Fixing disastrous joins
Icon
Reading large amounts of data
Icon
Understanding prepared queries
Icon
Summary
5
5. Getting Transactions and Locking Right
Icon
5. Getting Transactions and Locking Right
Icon
The PostgreSQL transaction model
Icon
Transaction isolation
Icon
Inspecting locks
Icon
Summary
6
6. Writing Proper Procedures
Icon
6. Writing Proper Procedures
Icon
Choosing the right language
Icon
Managing procedures and transactions
Icon
Procedures and indexing
Icon
Understanding memory
Icon
Summary
7
7. PostgreSQL Monitoring
Icon
7. PostgreSQL Monitoring
Icon
Checking the overall database behavior
Icon
Detecting I/O bottlenecks
Icon
Checking for conflicts
Icon
Chasing down slow queries
Icon
Inspecting internal information
Icon
Integrating with external tools
Icon
Alternative tools
Icon
Summary
8
8. Fixing Backups and Replication
chevron up
Icon
8. Fixing Backups and Replication
Icon
Using pg_dump
Icon
Managing point-in-time recovery
Icon
Making use of asynchronous replication
Icon
Switching to synchronous replication
Icon
Handling timelines
Icon
Summary
9
9. Handling Hardware and Software Disasters
Icon
9. Handling Hardware and Software Disasters
Icon
Checksums – preventing silent corruption
Icon
Zeroing out damaged pages
Icon
Dealing with index corruption
Icon
Dumping individual pages
Icon
Resetting the transaction log
Icon
Power-out-related issues
Icon
Summary
10
10. A Standard Approach to Troubleshooting
Icon
10. A Standard Approach to Troubleshooting
Icon
Getting an overview of the problem
Icon
Attacking low performance
Icon
Fixing common replication issues
Icon
Summary
11
Index
Icon
Index

Using pg_dump

The pg_dump command is one of the most important commands in PostgreSQL. It can be used to create textual as well as binary backups. Every system administrator will get in touch with this command once in a while. Here is how it works.

Creating textual dumps

Creating a textual dump is how most administrators digging into PostgreSQL get started. This is an essential, yet easy-to-manage, task.

The idea behind pg_dump is simple; it connects to the database that should be saved and transforms the content to a text format. Here is an example of its use:

pg_dump test > /backup/dump.sql

The simplest form of a backup is to send the SQL output created by pg_dump directly to a plain text file.

It is important to mention that a dump is always consistent. Internally, the dump is a large transaction in isolation level repeatable read. A dump represents a snapshot of data, which means that if you start a dump and it takes an hour to complete, then the changes in that one hour will not be included...

Visually different images
CONTINUE READING
83
Tech Concepts
36
Programming languages
73
Tech Tools
Icon Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.
Icon Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.
Icon 50+ new titles added per month and exclusive early access to books as they are being written.
Troubleshooting PostgreSQL
End of Section 8
Next Section
notes
bookmark Notes and Bookmarks search Search in title playlist Add to playlist font-size Font size

Change the font size

margin-width Margin width

Change margin width

day-mode Day/Sepia/Night Modes

Change background colour

Close icon Search
Country selected
Close icon Your notes and bookmarks

Confirmation

Modal Close icon
claim successful
Order Page Read Now

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY

Submit Your Feedback

Modal Close icon
Modal Close icon
Modal Close icon