MySQL continues to be one of the most popular databases used in cloud-native applications. In fact, MySQL is so popular that other cloud…
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In recent news, we announced the fresh-of-the-press Percona Monitoring and Management (or PMM for short) platform. Given the interaction of the different components that together make up PMM, I developed a script that helps provide you information about the status of your PMM installation.
You can use this script yourself, or one of our support might point you to this page to obtain the information they need to troubleshoot an issue you are experiencing.
You will likely want to execute this script once on the PMM …[Read more]
The other day I was speaking with someone who asked me a few times how we find and hire engineers who are capable of building performance/monitoring tools. I didn't have a great answer in the moment, but after the conversation was over, I realized it's because I fundamentally believe we all are capable of understanding and solving systems performance problems. We're all brainiacs, so to speak.
This has been a theme of my career. If you look back at my pre-Percona days, read the 2nd and then the 3rd edition of my book High Performance MySQL, examine my opensource software, look at the ebooks and white papers I've written, or listen to the recordings of any of my …[Read more]
A few weeks ago, I wrote a blog post explaining how sketch sampling methods can be employed to achieve fast 30-day data visibility for monitoring users. The problem we faced was that with that standard of retention, we’ve frequently seen systems that involve nearly a million query samples in a 30-day window, meaning that special solutions are needed in order to avoid overloading users’ browsers.
The solution we’ve found lies in a hash ordering that's proven to be both surprisingly simple and efficient. In this Part 2 post, I’ll look at why it works so well.
Ordering with a Hash
VividCortex’s query samples are stored in MySQL tables. The simplified schema definition looks like this:
Recently, I worked on a customer case where the customer needed to monitor the checksum via Nagios monitoring. The pmp-check-pt-table-checksum plugin from Percona Monitoring Plugins for MySQL achieves this goal. I thought it was worth a blogpost.
There’s no doubt that effective application performance management can be a daunting goal. As businesses have demanded increasingly complex tasks from their technology, the solutions required to keep their systems in top shape need to be ever more insightful and precise. While things like efficiency and uptime are the bottomline indicators of an app or database’s performance, there’s a variety of potential methods that can be used to achieve those ideals.
As in any other industry, false information proliferates where people are eager for quick, simple solutions. Naturally, we all want the fastest, most direct ways to fortify our APM. But where ambitious ideas can be powerful and positive, they can also be too good to be true or send the wrong message. Whether these involve — for example — overestimation of …[Read more]
Like prior versions, PMM is distributed through Docker Hub and is free to download. Full instructions for download and installation of the server and client are available in the documentation.
Notable changes to the tool include:
- Upgraded to Grafana 3.1.0.
- Upgraded to Prometheus 1.0.1.
- Set default metrics retention to 30 days.
- Eliminated port 9001. Now the container uses only one configurable port, 80 by default.
- Eliminated the need to specify ADDRESS variable …
Adaptive Fault Detection is a patented, algorithm-based technology and one of the important central components of the VividCortex app . Unlike other monitoring methodologies — such as anomaly detection or threshold alerting — adaptive fault detection is designed to detect events that are, by definition, detrimental to a system. It looks for issues that actually prevent work from completeing — not just anomalies or outliers. With this quick blog post, we want to help readers understand the definition and value of fault detection. To do so, it helps to delve into several key concepts:
- Why is it important to identify faults?
- How does VividCortex’s detect faults?
- How does our app help users address faults when they appear?
Why is it important to identify faults?
A fault is most easily defined as a certain kind of …[Read more]
There are manifold ways to collect, visualize, and analyze data… but not all methods are equally useful. VividCortex, however, is singular as a database-centric SaaS monitoring platform, and it's designed to provide you with powerful insights into your system that are both inherently actionable and unique. Within minutes of first booting up VividCortex, users frequently discover new aspects of their system. They understand it in brand new ways, just by viewing our app’s basic dashboards and metrics.
But that's just the start. Even beyond those initial revelations, there are many more powerful insights that VividCortex can provide, if you know how and where to look. These views aren’t entirely automatic, but they’re simple to discover with a few tips. Here are 5 insights easy to see with VividCortex.
Find which queries affect the most rows
Understanding which queries are …[Read more]
For data-driven applications, security is of absolute importance. Virtually all modern tech-driven organizations must treat the protection of sensitive information as an imperative. At VividCortex, we know that our customers value the premium we put on data-security, along with the specific defenses we have in place that keep their data out of the wrong hands.
One such defense is VividCortex’s SQL injection detection. As all DBAs know, SQL injections are one of the most nefarious threats to a data system. For those less familiar, a SQL injection is an attack that exploits poorly validated or sanitized user inputs as they are used to construct database queries. An injection aims to gain access or destroy data by using those unsanitized inputs to alter the structure of an SQL query in ways unanticipated by its developer.
Of course, destroyed or …[Read more]
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