Librato Blog

9 Key Apache Web Server Performance Metrics to Monitor


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9 Key Apache Web Server Performance Metrics to Monitor

Having recently celebrated its 20th birthday in 2015, Apache has a long and impressive record of dominating the web server space on the Internet. In a survey conducted in July of 2016 by Netcraft, Apache was reported to be the most popular server with 46.4% of market share. (https://news.netcraft.com/archives/2016/07/19/july-2016-web-server-survey.html)

If you’re reading this article, I suspect you’re an Apache user, and that you’re well acquainted with its stable nature, and modular architecture allowing it to be configured to meet a multitude of needs. As stable as Apache is, it is nevertheless important that users implement a robust monitoring system to ensure that the web server functions efficiently, and that potential problems are identified before they lead to fatal events.

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How to Monitor Redis Performance


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How to Monitor Redis Performance

The name Redis is derived from the phrase “REmote DIctionary Server.” The project is open-source, and is one of the most popular key-value databases in use today. The Redis dataset is stored entirely in memory, which allows it to function exceptionally fast, and the data is written to disk periodically to support persistence of the data if the memory is lost.

When using Redis as a data source for an application, it is important to ensure that the service remains both healthy and stable. The best way to do this is by developing and instituting a comprehensive monitoring plan. Development of such a plan and its implementation is the topic of this article. We’ll discuss what key metrics should be included in the plan and why, and we’ll conclude with a walkthrough of how to configure Redis to report its metrics to Librato, and how to view those metrics through a custom dashboard.

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How to Monitor NGINX Web Server Performance


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How to Monitor NGINX Web Server Performance

When development started on NGINX in 2002, the goal was to develop a web server which would be more performant than Apache had been up to that point. While NGINX may not offer all of the features available in Apache, its default configuration is able to handle approximately four times the number of requests per second, and accomplish this while using significantly less memory.

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Continual monitoring in the face of cloud storage failure



Continual monitoring in the face of cloud storage failure

On February 28th, 2017, many companies experienced the effects of the failure of components of the S3 object storage service offered by Amazon Web Services (AWS). Since, according to the Synergy Research Group, AWS owns more than 40% of the public cloud market, this outage potentially affected a large number of systems hosts in the cloud. Because Librato is built on AWS and relies on services like S3, or services dependent on S3, we were not immune to the S3 downtime either. However, because our infrastructure is built with the Cockcroft quote above in mind, we were able to weather the storm with minimal disruption to our customers, and absolutely no loss of customer data.

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6 Key Linux Performance Metrics to Monitor


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6 Key Linux Performance Metrics to Monitor

For an infrastructure to be healthy, there must be good monitoring, and the team must have a monitoring infrastructure that speeds up and facilitates the verification of problems, following the line of prevention, maintenance, and correction. Librato was created with the purpose of helping monitoring teams control infrastructure.

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