by Dawn Heiberg | Nov 3, 2020 | Cloud, Database Trends, Insight for DBAs
In this year’s Open Source Data Management Software survey, we asked organizations “What issues have you experienced in the last 12 months?” The main issue, flagged by three-quarters of respondents, was performance. Given the adverse impact that data slowdown has on...
by Matthew Boehm | Nov 3, 2020 | Insight for DBAs, Monitoring, MySQL, Percona Software
So you’ve just added some more memory to your MySQL server; now what? If you’ve been around the MySQL block for a while, you know that nothing is automatically changed to take advantage of this new system RAM. Let’s have a look at a few parameters...
by Peter Zaitsev | Nov 2, 2020 | Insight for DBAs, Monitoring, MySQL, Percona Software
Understanding how MySQL uses memory is key to tuning it for optimal performance as well as troubleshooting cases of unexpected memory usage, i.e. when you have MySQL Server using a lot more than you would expect based on your configuration settings. Early in MySQL...
by David Busby | Oct 30, 2020 | Insight for DBAs, MySQL, Percona Software
Galera replication technology, a key component of Percona XtraDB Cluster, suffered from a remote code execution vulnerability. Percona has been working with the vendor since early September on this issue and has made releases available to address the problem....
by Lalit Choudhary | Oct 30, 2020 | Insight for DBAs, Insight for Developers, Percona Software
At Percona, we operate on the premise that full-transparency makes a product better. We strive to build the best open-source database products, but also to help you manage any issues that arise in any of the databases that we support. And, in true open-source form,...
by Rachel Pescador | Oct 29, 2020 | Database Trends, Open Source, Percona Announcements
At our recent Percona Live ONLINE we announced the release of the 2020 Open Source Data Management Software Survey results. This year, we wanted to build upon the data we collected in 2019 and continue to monitor the open source industry’s pulse. The 2020 survey was...
by Marcelo Altmann | Oct 28, 2020 | Cloud, Insight for DBAs, MySQL, Percona Software
In a perfect world, we expect all software to run flawlessly and never have problems such as bugs and crashes. We also know that this perfect world doesn’t exist and we better be as prepared as possible to troubleshoot those types of situations. Historically,...
by Arunjith Aravindan | Oct 27, 2020 | Insight for DBAs, Insight for Developers, MySQL
This blog discusses new features about the persisted system variables and how we can use it to make variable changes persistent. The MySQL server maintains system variables that control its operations. The dynamic variables used prior to the MySQL 8 release are not...
by Yves Trudeau | Oct 27, 2020 | Cloud, Insight for DBAs, MySQL
If you often deploy services in the cloud, you certainly, at least once, forgot to stop a test instance. I am like you and I forgot my share of these. Another mistake I do once in a while is to provision a bigger instance than needed, just in case, and forget to...
by Sri Sakthivel | Oct 26, 2020 | Insight for DBAs, Insight for Developers, MySQL
MySQL 8.0.22 was released on Oct 19, 2020, and came with nice features and a lot of bug fixes. Now, you can configure your async replica to choose the new source in case the existing source connection (IO thread) fails. In this blog, I am going to explain the entire...
by Marcelo Altmann | Oct 23, 2020 | Insight for DBAs, MySQL, Percona Software
Earlier this week, Oracle released their Q4 releases series. As on the previous releases, backward compatibility has been broken with previous versions of the server. This time on both MySQL 5.7 and 8.0: MySQL 5.7.32 While our QA team was performing an extensive test...
by Vadim Tkachenko | Oct 22, 2020 | Cloud, Insight for DBAs, MySQL, Percona Software
One of the most exciting storage-related features in Kubernetes is Volume snapshot and clone. It allows you to take a snapshot of data volume and later to clone into a new volume, which opens a variety of possibilities like instant backups or testing upgrades. This...
by David Quilty | Oct 22, 2020 | Cloud, MySQL, Percona Services, Webinars
Google Cloud Platform (GCP), with its CloudSQL offering, has become a leading platform for database-as-a-service workload deployments for many organizations. Scale and High Availability have surfaced as primary goals for many of these deployments. Unfortunately, the...
by Steve Hoffman | Oct 22, 2020 | Insight for DBAs, Monitoring, Percona Software
About the Author – This blog was written as a collaboration with my colleague Jiri Ctvrtka. Jiri is a senior software developer from Brno, Czech Republic, and has been partnering with Percona for almost a year working on various components of our Percona...
by Carlos Tutte | Oct 16, 2020 | Insight for DBAs, MySQL, Percona Software
Changing the default value (3) of log_error_verbosity in MySQL/Percona Server for MySQL 5.7 can have a hidden unintended effect! What does log_error_verbosity do exactly? As per the documentation: “The log_error_verbosity system variable specifies the verbosity for...
by Vadim Yalovets | Oct 12, 2020 | Insight for DBAs, Monitoring, Percona Software
From time to time we are asked how to limit users to viewing only some dashboards or servers in Percona Monitoring and Management (PMM). Here are some hints on how to do this. Let’s imagine you want the following: Users user1 and user2 are only allowed to see...
by Daniil Bazhenov | Oct 12, 2020 | MongoDB, MySQL, Percona Services, Percona Software, PostgreSQL
Have you recently visited Percona’s Community Forum? It’s your hub for direct Q&A with top database experts, including Percona CEO Peter Zaitsev and CTO Vadim Tkachenko. Last quarter over 450 users participated, including 45 engineers from Percona’s staff. Since...
by Marco Tusa | Oct 9, 2020 | Benchmarks, Cloud, MySQL, ProxySQL
For what reason should I use a real multi-primary setup? To be clear, not a multi-writer solution where any node can become the active writer in case of needs, as for Percona XtraDB Cluster (PXC) or Percona Server for MySQL using Group_replication. No, we are talking...
by Rituja Borse | Oct 8, 2020 | Insight for DBAs, Monitoring, MySQL, Percona Software
Percona Monitoring and Management (PMM) is a free and open source platform for managing and monitoring MySQL, MongoDB, and PostgreSQL databases. In this blog, we will look at troubleshooting MySQL issues and performance bottlenecks with the help of PMM. We can start...
by Przemysław Malkowski | Oct 8, 2020 | Insight for DBAs, MySQL, Percona Software
Recently I was dealing with an unexpected issue raised by our Support customer, in which data became inconsistent after a schema change was applied. After some investigation, it turned out that affected tables had a special word in the comments of some columns, which...
