How to restore MySQL data folder using persistent disk snapshots (GCP)
There are already many tools for MySQL to perform backups and consistent restores, but this time I’d like to elaborate on how to take advantage of the kindness the cloud, which gives us Persistent...
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Percona Server for MySQL 5.7.26-29 Is Now Available
Percona announces the release of Percona Server for MySQL 5.7.26-29 on May 27, 2019 (downloads are available here and from the Percona Software Repositories). This release merges changes of MySQL...
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Performance Schema Functions
Tweet The sys schema was created to make it easier to use the Performance Schema. This included several functions, for example to convert the picoseconds used by the Performance Schema into human...
View ArticleExposing MyRocks internals Via system variables: Part 6, replication
In this blog post, we continue our series of exploring MyRocks mechanics by looking at the configurable server variables and column family options. In our last post, I explained at a high level how...
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ProxySQL 2.0.4 and proxysql-admin tool Now Available
ProxySQL 2.0.4, released by ProxySQL, is now available for download in the Percona Repository along with Percona’s proxysql-admin tool. ProxySQL is a high-performance proxy, currently for MySQL and...
View ArticleMy presentations at Percona Live
Percona Live 2019 is starting in Austin today. You may already have read that I have a presentation on how to use Optimizer Trace to understand the inner workings of the MySQL Query Optimizer: The...
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ERROR 1040 (HY000): Too many connections
ERROR 1040 (HY000): Too many connections An application might face this issue when all the defined max_connections parameter value is exhausted. mysqld reserve a +1 connection (i.e., max_connections...
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errno: 24 - Too many open files
errno: 24 - Too many open files You might see this error inside MySQL's error log file or during mysql_upgrade operation.Can't open file: ‘./db/table.frm' (errno: 24 - Too many open files) To solve...
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Check Out the Percona Live 2019 Live Stream!
Feeling the FOMO? Now you don’t have to! With the Percona Live Open Source Database Conference 2019 Live Stream, you’ll practically be there in person, living the experience to the fullest. Our...
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Install MySQL on CentOS using DBdeployer
Install MySQL on CentOS using DBdeployer 1. Here It is assumed You will have a CentOS system/VM. If not, then please find my this blog post link where you will get instruction about, how you can...
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How to Prepare for MySQL Certification Exam
How to Prepare for MySQL Certification Exam Here I am going to suggest MySQL DBA, student or any newbie that how they can prepare for "Oracle's MySQL 5.x Database Administrator" certification exam....
View ArticleIntroducing MyHoard, your single solution to MySQL backups and restoration
We at Aiven are big believers in Open Source. Not only do we provide Open Source databases as a service, we are contributors to several of those and many related projects. Additionally, we open source...
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Percona Live Presents: Globalizing Player Accounts with MySQL at Riot Games
During my presentation at Percona Live 2019, I’ll be talking about how Riot Games, the company behind League of Legends, migrated hundreds of millions of player accounts to unlock opportunities for us...
View ArticleGaming company benefits from Increased Responsiveness With Help from...
When Skillz, a leading mobile eSports platform connecting 2.6 billion gamers across the globe, sought Pythian’s help with reducing storage costs, they learned they could not only reduce costs but also...
View ArticleHow to use if condition in laravel select query
We will learn how to use if condition in laravel select query we can use mysql case when statement with db raw in laravel If you want to use mysql function then you must have to use db raw function in...
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SQL INNER JOIN Query Tutorial With Example | SQL JOIN Types
SQL INNER JOIN Query Tutorial With Example is today’s topic. SQL joins are used to combine records from two or more tables in a database. SQL Inner Join is used to select all rows from tables for the...
View Article[Platform] JK.cn Database operation and maintenance architect
Please download below ppt file，shared in Shenzhen 2019
View ArticleAngular 8 Tutorial: Learn Angular 8 from Scratch
Angular 8 is released! Read about its new features and how to update Angular 7 to v8. This tutorial is designed for developers that want to use Angular 8 to build front-end apps for their back-end REST...
View ArticleHow to Install Phorum with Nginx on CentOS 7
Phorum is a PHP and MySQL based Open Source forum software. In this guide, we will guide you step-by-step through the Phorum installation process on the CentOS 7 operating system using Nginx as the web...
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MySQL Community Awards at Percona Live 2019
It’s that time of year again, and we’ve just had the presentations of the MySQL Community Awards at Percona Live. A more fulsome blog post will be written for the Community Blog in the next few days...
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