Author - Sri Sakthivel

MySQL 8.0.22: SHOW PROCESSLIST Version 2 – Now Available From PERFORMANCE_SCHEMA


The “SHOW PROCESSLIST” command is very famous and very useful for MySQL DBAs. It will help you to understand the ongoing thread activities and their current states. By default, the “show processlist” output details will be collected from the thread manager, and it needs the global mutex. From MySQL 8.0.22, we have an alternative […]

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MySQL Group Replication – How to Elect the New Primary Node

MySQL Group Replication Primary Node

In this blog, I am going to explain the different ways of electing the PRIMARY node in MySQL group replication. Before MySQL 8.0.2, primary election was based on the member’s UUID, with the lowest UUID elected as the new primary in the event of a failover.
From MySQL 8.0.2: We can select the node to […]

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MySQL Shell 8.0.22: Data Export/Import Utilities Tested with MySQL 8/5.7/5.6

MySQL Shell 8.0.22 data export

MySQL Shell is an advanced client tool that has many features and is easy to use. The recent MySQL release (MySQL 8.0.22) has the utility “exportTable()”, which supports exporting the data into a file from a table using MySQL shell. The exported data file can be imported using the utility “importTable()”, which was released […]

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MySQL 8.0.22: Asynchronous Replication Automatic Connection (IO Thread) Failover

MySQL 8.0.22 Asynchronous Replication Automatic Connection

MySQL 8.0.22 was released on Oct 19, 2020, and came with nice features and a lot of bug fixes. Now, you can configure your async replica to choose the new source in case the existing source connection (IO thread) fails. In this blog, I am going to explain the entire process involved in this […]

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Various Ways to Perform Schema Upgrades with Percona XtraDB Cluster

Perform Schema Upgrades with Percona XtraDB Cluster

Schema changes are the big challenges in Galera replication. So, it is recommended to understand the schema changes operation for everyone who uses the Percona XtraDB Cluster (PXB)/Galera clusters. In this blog, I am going to explain the operation and impact of the various schema changes methods used in the PXB/Galera cluster.

Schema changes with […]

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