The latest from the MySQL community

ProxySQL is a high-performance SQL proxy, which runs as a daemon watched by a monitoring process. The process monitors the daemon and restarts it in case of a crash to minimize downtime.

The daemon accepts incoming traffic from MySQL clients and forwards it to backend MySQL servers.

The proxy is designed to run continuously without needing to be restarted. Most configurations can be done at runtime using queries similar to SQL statements in the ProxySQL admin interface. These include runtime parameters, server grouping, and traffic-related settings.

Here, we will consider ProxySQL configured for async replication. Even when a replica is broken/stopped, ProxySQL still routes connections to replicas. It can be overcome by setting the appropriate value for mysql-monitor_slave_lag_when_null

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Sometimes it’s convenient to retrieve the user creation statement and to copy it to another server. However, with the new authentication method used as default since MySQL 8.0, caching_sha2_password, this can become a nightmare as the output is binary and some bytes can be hidden or decoded differently depending of the terminal and font used. […]

Do you know what lies inside your MySQL Data Directory? This article is a quick guide about the files stored inside MySQL data directory. Data managed by the MySQL server…

The post Quick Look – MySQL Data Directory Files first appeared on Change Is Inevitable.

During a migration to MySQL HeatWave, it could be interesting to cut & paste user creation statements. In this blog you learn how to achieve this.

Another packed full newsletter coming your way this week in OpenLampTech. So much goodness in this one. Take your time reading, enjoy, and share. Thank you.

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• Developer interview
• MySQL …

Sometimes it’s convenient to retrieve the user creation statement and to copy it to another server.

However, with the new authentication method used as default since MySQL 8.0, caching_sha2_password, this can become a nightmare as the output is binary and some bytes can be hidden or decoded differently depending of the terminal and font used.

Let’s have a look:

If we cut the create user statement and paste it into another server what will happen ?

We can see that we get the following error:

ERROR: 1827 (HY000): The password hash doesn't have the expected format.

How could we deal with that ?

The solution to be able to cut & paste the authentication string without having any issue, is to change it as a binary representation (hexadecimal) like this:

And then replace the value in the user create statement:

But there is an easier way. MySQL …

Some fun is coming

While I was writing the internal guidelines on how to migrate from MariaDB to Percona Server, I had to export the users accounts in a portable way. This given MariaDB uses  some non standard syntax brings me to first test some external tools such as Fred https://github.com/lefred/mysqlshell-plugins/wiki/user#getusersgrants and our PT-SHOW-GRANTS tool. 

Useless to say this had open a can worms, given first I had to fix/convert the specifics for MariaDB (not in the scope of this blog), then while testing I discover another nasty issue, that currently prevent us to easily export the new …

Here comes the success story of Specialized Media Dashboard, a project that comprises an open-source media monitoring system. The specialized media in question encompasses the spheres of journalism, law enforcement, and climate change.

The post Case Study: How the Engineers of SMD Found a Way to Process Millions of Database Records Faster With dbForge Studio for MySQL appeared first on Devart Blog.

If you are deploying MySQL on containers, one of the first tasks is to find the right image. There’s a certain amount of confusion, especially when we’re trying to help someone who’s having problems with their deployment. For example, when people say I’m using the official docker image… what does that really mean? Docker Hub, […]

Find the official MySQL container image in the Oracle Container Registry