by Colin Charles | Feb 16, 2018 | Cloud, MariaDB, MongoDB, MySQL, Open Source, Percona Events, Percona Software, PostgreSQL, ProxySQL
Join Percona Chief Evangelist Colin Charles as he covers happenings, gives pointers and provides musings on the open source database community. In case you missed last week’s column, don’t forget to read the fairly lengthy FOSDEM MySQL & Friends...
by Krunal Bauskar | Feb 13, 2018 | Insight for DBAs, MySQL, Percona Software
What if we tell you that there is a sure way to get IST not SST for node rejoins? You can guarantee that a new node rejoins using IST. Sound interesting? Keep reading. Normally when a node is taken out of the cluster for a short period of time (for maintenance or...
by Sveta Smirnova | Feb 12, 2018 | Insight for DBAs, MySQL, Open Source, Webinars
Please join Percona’s Principal Support Engineer, Sveta Smirnova, as she presents “Basic Internal Troubleshooting Tools for MySQL Server” on Thursday, February 15, 2018, at 10:00 am PST (UTC-8) / 1:00 pm EST (UTC-5). Register Now MySQL Server has...
by Yves Trudeau | Feb 8, 2018 | Hardware and Storage, Insight for DBAs, MySQL
While preparing a post on the design of ZFS based servers for use with MySQL, I stumbled on the topic of fsync call performance. The fsync call is very expensive, but it is essential to databases as it allows for durability (the “D” of the ACID acronym)....
by Dave Avery | Feb 8, 2018 | Cloud, Insight for DBAs, Insight for Developers, MariaDB, MongoDB, MySQL, Percona Live
Percona has revealed the line-up of in-depth tutorials for the Percona Live 2018 Open Source Database Conference, taking place April 23-25, 2018 at the Santa Clara Convention Center in Santa Clara, Calif. Secure your spot now with Advanced Registration prices...
by Ananias Tsalouchidis | Feb 7, 2018 | Insight for DBAs, MySQL, ProxySQL
In this blog post, I’ll present the ProxySQL query cache functionality. This is a query caching mechanism on top of ProxySQL. As there are already many how-tos regarding the ProxySQL prerequisites and installation process, we are going to skip these steps. For...
by Borys Belinsky | Feb 5, 2018 | MongoDB, MySQL, Percona Events
Percona announces the release of Percona Monitoring Plugins 1.1.8. Changelog Add MySQL 5.7 support Changed a canary check to use timestamp.now() and return a timedelta.seconds Remove an additional condition for the Dictionary memory allocated Fixed a...
by Peter Zaitsev | Feb 5, 2018 | Insight for DBAs, MySQL
In this blog post, I’ll look into four ways MySQL executes GROUP BY. In my previous blog post, we learned that indexes or other means of finding data might not be the most expensive part of query execution. For example, MySQL GROUP BY could potentially be...
by Vadim Tkachenko | Feb 1, 2018 | MySQL
Percona recently released Percona Server with MyRocks as GA. You can see how Facebook explains wins they see in production with MyRocks. Now if you use Percona repositories, you can simply install MyRocks plugin and enable it with ps-admin –enable-rocksdb. There...
by Borys Belinsky | Jan 31, 2018 | MySQL, Percona Events, Percona Software
Percona announces the release of Percona Monitoring and Management 1.7.0. (PMM ) is a free and open-source platform for managing and monitoring MySQL and MongoDB performance. You can run PMM in your own environment for maximum security and reliability. It provides...
by Jervin Real | Jan 31, 2018 | Cloud, Insight for DBAs, MySQL
The Aurora hash join feature for relational databases has been around for a while now. But unlike MySQL Block Nested Loop algorithm, an Aurora hash join only caters to a specific number of use cases. When implemented with the optimizer properly, they can provide great...
by Peter Zaitsev | Jan 30, 2018 | Insight for DBAs, MySQL
In this blog post, I’ll look at whether optimizing indexing is always the key to improving MySQL query performance (spoiler, it isn’t). As we look at MySQL query performance, our first concern is often whether a query is using the right indexes to retrieve...
by Alexander Rubin | Jan 29, 2018 | Insight for DBAs, MySQL
In this blog post, we’ll look at ways you can use MySQL 5.7 generated columns (or virtual columns) to improve query performance. Introduction About two years ago I published a blog post about Generated (Virtual) Columns in MySQL 5.7. Since then, it’s been...
by Dmitriy Kostiuk | Jan 26, 2018 | Insight for DBAs, MySQL, Percona Events, Percona Software, ProxySQL
Percona announces the release of Percona XtraDB Cluster 5.7.20-29.24 (PXC) on January 26, 2018. Binaries are available from the downloads section or our software repositories. NOTE: Due to new package dependency, Ubuntu/Debian users should use apt-get dist-upgrade,...
by Alex Poritskiy | Jan 25, 2018 | Insight for DBAs, MySQL, Open Source
In this blog post, we’ll provide an overview of the new MySQL 8.0 RESOURCE_GROUP feature. One great new feature introduced in MySQL 8.0 that – from my point of view – requires attention is RESOURCE_GROUP. Short disclaimer: I want to point out that MySQL 8.0 is...
by Borys Belinsky | Jan 25, 2018 | MySQL, Percona Events, Percona Software
Percona announces the release of Percona Monitoring and Management 1.6.1. This release contains fixes to bugs found after Percona Monitoring and Management 1.6.0 was released. Bug fixes PMM-1660: QAN for MongoDB would not display data when authentication was enabled....
by Dmitriy Kostiuk | Jan 24, 2018 | Insight for DBAs, MySQL, Percona Events, Percona Software, ProxySQL
Percona announces the release of Percona XtraDB Cluster 5.6.38-26.23 (PXC) on January 24, 2018. Binaries are available from the downloads section or our software repositories. Percona XtraDB Cluster 5.6.38-26.23 is now the current release, based on the following:...
by Ceri Williams | Jan 24, 2018 | Insight for DBAs, MySQL, Security
The news that the latest MySQL 8.0.4 RC (release candidate) is available is indeed exciting. Unfortunately for users of the auth_socket plugin, dangers lie in wait! Back in November 2015, I reported Failure of auth_socket authentication with sha256_password as...
by Sveta Smirnova | Jan 24, 2018 | Insight for DBAs, Insight for Developers, MySQL, Open Source, Webinars
Please join Percona’s Principal Support Engineer, Sveta Smirnova, as she presents Troubleshooting MySQL Crashes on January 25, 2018, at 10:00 am PST (UTC -8) / 1:00 pm EST (UTC -5). Register Now This webinar is for every MySQL user! In this talk, I won’t focus...
by Colin Charles | Jan 22, 2018 | Insight for DBAs, MariaDB, MySQL, Open Source, Webinars
Join Percona’s Chief Evangelist, Colin Charles as he presents Differences Between MariaDB and MySQL on Wednesday, January 24, 2018, at 7:00 am PST (UTC -8) / 10:00 am EST (UTC -5). Register Now Tags: MariaDB, MySQL, Percona Server for MySQL, DBA, SysAdmin, DevOps...
