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Troubleshooting PostgreSQL

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Troubleshooting PostgreSQL

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Troubleshooting PostgreSQL
Mar, 2015 | 164 pages
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Table of Contents (17 chapters)
Troubleshooting PostgreSQL
Troubleshooting PostgreSQL
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Installing PostgreSQL
Installing PostgreSQL
Deciding on a version number
Methods of installing PostgreSQL
Memory and kernel issues
Adding checksums to a database instance
Preventing encoding-related issues
Avoiding template pollution
Summary
2
Creating Data Structures
Creating Data Structures
Grouping columns the right way
Deciding on data types and structure
Deciding on normalization
Summary
3
Handling Indexes
Handling Indexes
Understanding indexes in PostgreSQL
Avoiding trouble with indexes
Solving common problems
Handling LIKE queries
Finding good matches
Fixing full-text search
Summary
4
Reading Data Efficiently and Correctly
Reading Data Efficiently and Correctly
Understanding the power of NULL
Fixing disastrous joins
Reading large amounts of data
Understanding prepared queries
Summary
5
Getting Transactions and Locking Right
Getting Transactions and Locking Right
The PostgreSQL transaction model
Transaction isolation
Inspecting locks
Summary
6
Writing Proper Procedures
Writing Proper Procedures
Choosing the right language
Managing procedures and transactions
Procedures and indexing
Understanding memory
Summary
7
PostgreSQL Monitoring
PostgreSQL Monitoring
Checking the overall database behavior
Detecting I/O bottlenecks
Checking for conflicts
Chasing down slow queries
Inspecting internal information
Integrating with external tools
Alternative tools
Summary
8
Fixing Backups and Replication
Fixing Backups and Replication
Using pg_dump
Managing point-in-time recovery
Making use of asynchronous replication
Switching to synchronous replication
Handling timelines
Summary
9
Handling Hardware and Software Disasters
Handling Hardware and Software Disasters
Checksums – preventing silent corruption
Zeroing out damaged pages
Dealing with index corruption
Dumping individual pages
Resetting the transaction log
Power-out-related issues
Summary
10
A Standard Approach to Troubleshooting
A Standard Approach to Troubleshooting
Getting an overview of the problem
Attacking low performance
Fixing common replication issues
Summary
Index
Index

Summary

In this chapter, a typical customer request was outlined and discussed step by step. The goal was to systematically outline the steps to approach an existing system that faces typical everyday problems.

Note

Keep in mind that my personal strategy is not suitable for every purpose but it helps to tackle a typical troubled system anywhere in the world.

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