Monday , 20 November 2017

Optimize Nginx Monitoring With Vital Server Performance Metrics

There are plenty of tools to monitor Nginx for developers like you to consider. However, if you do not know the metrics you should be recording and analyzing for optimal Nginx monitoring, they are of no use. Find out the most crucial NGINX web server specific metrics you should be paying attention to below.

Uptime

Analyzing server uptime is a must to ensure your website is performing optimally. This metric is typically measured in seconds. These seconds indicate the length of time that your server has been up and running. Measuring server uptime is crucial when monitoring Nginx. It allows you to detect server restarts, which is always something you want to be aware of once you have SSL certification. That is why server uptime is one of the most important Nginx metrics you should familiarize yourself with.

Accepts

Nginx metrics available through ngx_http_stub_status_module include the measure of “accepts.” The term accepts refers to the amount of accepted connections from clients from the start of the Nginx master process. In order to restart a Nginx master process, you cannot simply reload configuration or restart worker processes. You must actually terminate and restart the master process in order to accurately track this metric. This is important to know for proper Nginx monitoring, especially when you are attempted to measure this metric against the one below.

Handled

The term “handled” in the same ngx_http_stub_status_module refers to the total number of connections handled from clients from the start of the Nginx master process on. This metric is especially important when compared alongside the amount of accepts. Your handled metrics will only be lower than accepts figures when a connection is dropped before it can be handled by the server. This is important to know when you are attempting to monitor Nginx, as it provides important information regarding server performance.

Response Time

Response time is one of the most important Nginx monitoring metrics for developers to pay close attention to. Response time is the metric that measures how rapidly requests are handled for a given VoIP server. This is one of the most important indicators of application performance. You can monitor response time by using the variable $request_time in your Nginx log configuration. Measuring the amount of elapsed time between receiving full client requests, processing requests and transmitting responses is a must for Nginx monitoring best practices.

Requests Per Second

Requests per second, or RPS, is the metric that determines the rate at which Nginx is doing its job. Spikes or drops in RPS can be an important indicator of underlying issues or events. RPS surges may indicate increased customer activity or DDoS attacks. On the other hand, a drop in RPS could indicate network connectivity issues or depleted resources like RAM or CPU. Regardless of which direction RPS metrics move, you will want to take notice of significant changes to further investigate the underlying cause. Make sure you monitor RPS. Otherwise, you will not be making effective use of your Nginx monitoring capabilities which can have an impact on your server performance and user experience for your website.

If you are a developer, you know that web applications and websites cannot perform optimally unless your server is operating at maximum capacity. That is why test management is so crucial. Monitoring Nginx metrics can help you stay on top of the most important server performance data that can negatively impact user experience on your website. Use the Nginx monitoring metrics mentioned above. These are some of the most important Nginx metrics to properly manage web application performance. Pay close attention to these figures, and your traffic volume data will show the results of your efforts.

Photo from https://eladnava.com/binding-nodejs-port-80-using-nginx/

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