Book Image

Nginx Troubleshooting

By : Alexey Kapranov
Book Image

Nginx Troubleshooting

By: Alexey Kapranov

Overview of this book

Nginx is clearly winning the race to be the dominant software to power modern websites. It is fast and open source, maintained with passion by a brilliant team. This book will help you maintain your Nginx instances in a healthy and predictable state. It will lead you through all the types of problems you might encounter as a web administrator, with a special focus on performance and migration from older software. You will learn how to write good configuration files and will get good insights into Nginx logs. It will provide you solutions to problems such as missing or broken functionality and also show you how to tackle performance issues with the Nginx server. A special chapter is devoted to the art of prevention, that is, monitoring and alerting services you may use to detect problems before they manifest themselves on a big scale. The books ends with a reference to error and warning messages Nginx could emit to help you during incident investigations.

Related Content you might be interested in

Current Title:

Small book image
Nginx Troubleshooting
Alexey Kapranov
Apr, 2016 | 172 pages
No titles found
Table of Contents (15 chapters)
Nginx Troubleshooting
Nginx Troubleshooting
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
Searching for Problems in Nginx Configuration
Searching for Problems in Nginx Configuration
Introducing basic configuration syntax, directives, and testing
Testing Nginx configuration
Common mistakes in configuration
Summary
2
Searching for Problems in Log Files
Searching for Problems in Log Files
Configuring Nginx logging
Creating infrastructure around logs
Summary
3
Troubleshooting Functionality
Troubleshooting Functionality
Processing a complain
Summary
4
Optimizing Website Performance
Optimizing Website Performance
Why Nginx is so fast?
Optimizing individual upstreams
Using thread pools in Nginx
The caching layer of Nginx
Replacing external redirects with internal ones
Summary
5
Troubleshooting Rare Specific Problems
Troubleshooting Rare Specific Problems
Security warnings
Solving problems with cache
Obsolete pages and VirtualBox
Apache migration problems
Solving problems with WebSockets
Showing a file upload progress bar
Solving the problem of an idle upstream
Summary
6
Monitoring Nginx
Monitoring Nginx
Using ngxtop
Getting statistics from http_stub_status
Monitoring Nginx with Munin
Configuring alerts
Getting more status data from Nginx
Using Nginx Plus alternatives
Summary
7
Going Forward with Nginx
Going Forward with Nginx
System administration
Software development
Summary
Rare Nginx Error Messages
Rare Nginx Error Messages
Index
Index

Chapter 6. Monitoring Nginx

After reading this chapter you will be able to set up proper monitoring for your Nginx installation using the features freely available as part of base Nginx distribution and several of the more popular monitoring and alerting systems available on the market.

You will also get acquainted with an advanced monitoring solution that is included in the Nginx Plus subscription package, which the makers of Nginx sell as a commercial service.

Knowing what is happening to your web server is the first step towards fixing and preventing any problems. Setting up monitoring and alerting is one of the essential steps in any production deployment, and Nginx web servers are not the exception here. Experienced web administrators will never feel calm enough until they have real-time insight into the performance and load indicators.

There are several sources of data for your monitoring system provided by Nginx. First, there are logs, which you may configure up to your preferences....

Previous Section
End of Section 1
Next Section