Author: MySQL Planet

Feed: Planet MySQL; Author: Codership; This is a new era in deploying, managing and monitoring your Galera Cluster for MySQL, with the recently released Galera Manager, now Generally Available (GA). Galera Manager is a web-based graphical user interface (GUI) tool that allows you to fully manage clusters in Amazon Web Services, you can also deploy clusters on user provided hosts (on premise or in the cloud) and you can also fully monitor your existing clusters. In this Webinar, we will cover: Deploying a fully managed cluster in AWS Deploying a cluster on user-provided hosts Monitoring an existing cluster How we ... Read More

Feed: Planet MySQL; Author: MySQL Performance Blog; Recently, AWS presented its own CPU on ARM architecture for server solutions. It was Graviton. As a result, they update some lines of their EC2 instances with new postfix “g” (e.g. m6g.small, r5g.nano, etc.). In their review and presentation, AWS showed impressive results that it is faster in some benchmarks up to 20 percent. On the other hand, some reviewers said that Graviton does not show any significant results and, in some cases, showed fewer performance results than Intel. We decided to investigate it and do our research regarding Graviton performance, comparing it ... Read More

Feed: Planet MySQL; Author: Marco Tusa; Marco, why did you write this long article? Yes, it is long, and I know most of the people will not read it in full, but my hope is that at least someone will, and I count on them to make the wave of sanity.  Why I wrote it is simple. We write articles to share something we discover, or to share new approaches or as in this case to try to demystify and put in the right perspective the “last shining thing” that will save the world.   The “last shining thing” is the ... Read More

Feed: Planet MySQL; Author: MySQL Performance Blog; ProxySQL 2.3.0 was recently released and when I was reading the release notes, I was really impressed with the Group Replication enhancements and features. I thought of experimenting with those things and was interested to write a blog about them. Here, I have focused on the following two topics: When the replication lag threshold is reached, ProxySQL will move the server to SHUNNED state, instead of moving them to OFFLINE hostgroup. When shunning a server, it will be performed gracefully and not immediately drop all backend connections. The servers can be taken to ... Read More

Feed: Planet MySQL; Author: Marco Tusa; I decided to write this article after a discussion with other colleagues.  We were wondering how and if the Percona Distribution for MySQL Operator(PDMO) could help a starting business or a new project inside an enterprise.  We were also wondering how it behaves in relation to already well established solutions, like Amazon RDS or Google SQL.  In fact, we often see analysis and benchmarking covering huge datasets and instances with very high levels of resources . But we tend to forget that any application or solution started as something small, and it is important ... Read More

Feed: Planet MySQL; Author: MySQL Performance Blog; As part of my ongoing focus on MySQL 8 user and password management, I’ve covered how using the new dual passwords feature can reduce the overall DBA workload and streamline the management process. I’ve also covered how the new password failure tracking features can enable the locking of an account with too many failed password attempts (see MySQL 8: Account Locking). There are other new and useful features that have been added to the user management capabilities in MySQL 8 however, and an often overlooked change was the implementation of a random password ... Read More

Feed: Planet MySQL; Author: MySQL Performance Blog; There are plenty of ways to run ProxySQL in Kubernetes (K8S). For example, we can deploy sidecar containers on the application pods, or run a dedicated ProxySQL service with its own pods. We are going to discuss the latter approach, which is more likely to be used when dealing with a large number of application pods. Remember each ProxySQL instance runs a number of checks against the database backends. These checks monitor things like server-status and replication lag. Having too many proxies can cause significant overhead. Creating a Cluster For the purpose of ... Read More

Feed: Planet MySQL; Author: Lenz Grimmer; As we’ve communicated in our blog post in May, the TokuDB Storage Engine has been marked as “deprecated” in Percona Server for MySQL 8.0. It will be removed in a future version (Percona Server for MySQL 8.0.28, expected to ship in Q1 2022). With the release of Percona Server for MySQL 8.0.26, the storage engine will still be included in the binary builds and packages but will be disabled by default. If you are upgrading from a previous version, the TokuDB Storage Engine plugin will fail with an error message at server startup if it ... Read More

Feed: Planet MySQL; Author: MySQL Performance Blog; As part of my ongoing focus on MySQL 8 user and password management, I’ve covered how the new dual passwords feature can reduce the overall DBA workload and streamline the management process (see MySQL 8: Dual Passwords). This wasn’t the only change to user/password management in MySQL 8; one of the more security-focused changes was the implementation of temporary account locking, first introduced in MySQL 8.0.19. With this feature, database administrators can now configure user accounts so that too many consecutive login failures can temporarily lock the account. The account locking feature only ... Read More

Feed: Planet MySQL; Author: Sveta Smirnova; It is a common use case to synchronize data in two tables inside MySQL servers. This blog post describes one specific case: how to synchronize data between two different tables on the same MySQL server. This could be useful, for example, if you test DML query performance and do not want to affect production data. After few experiments, tables get out of sync and you may need to update the test one to continue working on improving your queries. There are other use cases when you may need to synchronize the content of the ... Read More