This release introduces a new major feature – ‘read-only’ connections – as well as Kerberos authentication support and a few bug fixes.

Changes as compared to MySQL GUI 12.3.3 include:

Features:

* Added an option for defining a connection as ‘read-only’.  There is a checkbox in the connection settings and when checked the title bar will inform user about the ‘read-only’ state. In ‘read-only’ state statements that write cannot be executed. For more details please see note at the bottom.
* Added support for the MariaDB auth_gssapi (Kerberos) plugin. This plugin is available with the latest 3.0 (alpha) Connector/C from MariaDB. But there seems to  be a huge popular demand for this already, and we have backported it to the 2.3 connector version we use in SQLyog.  Note that support …

Have you ever wondered what could happen if your MySQL database goes down?

Although it’s evident such a crash will cause downtime – and surely some business impact in terms of revenue – can you do something to reduce this impact?

The simple answer is “yes” by doing regular backups (of course) but are you 100% sure that your current backup strategy will really come through when an outage occurs? And how much precious time will pass (and how much revenue will be lost) before you get your business back online?

I usually think of backups as the step after HA fails. Let’s say we’re in M<>M replication and something occurs that kills the db but the HA can’t save the day. Let’s pretend that the UPS fails and those servers are completely out. You can’t failover; you have to restore data. Backups are a key piece of “Business Continuity.” Also factor in the frequent need to restore data that’s been …

Have you ever experienced a situation where one moment you can connect to the MySQL database and the next moment  you cannot, only to be able to connect again a second later? As you may know one cannot open infinite connections with MySQL. There’s a practical limit and more often than not it is imposed by the underlying operating system. If you’re getting:

ERROR 2003 (HY000): Can't connect to MySQL server on '192.168.0.10' (99)

…there’s a good chance you’re hitting such limit. What might be misleading in the information above is whom (which side) is preventing the connection from being established.

Understanding the problem at hand

Whenever a client uses the network to connect to a service running on a given port of a server this connection is established through the creation of a socket:

…

We just released, as an open source release, our new percona-agent (https://github.com/percona/percona-agent), the agent to work with Percona Cloud Tools. This agent is written in Go.

I will give a webinar titled “Monitoring All MySQL Metrics with Percona Cloud Tools” on June 25 that will cover the new features in percona-agent and Percona Cloud Tools, where I will also explain how it works. You are welcome to register now and join me. …

Everybody knows the criticality of backup. You might have had your database dumped, data directory copied, flat files exported and even config and binary log files backed-up. But did you…

The post Is your backup complete? – backup MySQL users privileges / grants – pt-show-grants first appeared on Change Is Inevitable.

Ever come accoss a situation where you have to load a flat text file into MySQL with data provided in single column! Say, your data to be loaded in table…

The post Load columnar text file into MySQL table first appeared on Change Is Inevitable.