Making Sense of MySQL Group Replication Consistency Levels

MySQL Group Replication Consistency

From the initial release, one of the biggest complaints I had about Group Replication is that it allowed “stale” reads and there was no way to prevent them or to even know that you read “stale” data. That was a huge limitation. Thankfully, Oracle released features to control the consistency levels, and it was […]

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MongoDB: Why Pay for Enterprise When Open Source Has You Covered?

alternatives to paying a MongoDB

When Percona first published the blog MongoDB Security: Why Pay for Enterprise when Open Source Has You Covered? , I constantly referenced it. Comparing MongoDB Enterprise to Percona Server for MongoDB has become such a common topic for discussion with Percona’s current and future customers that the information contained in that blog is ingrained in my […]

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InnoDB Flushing in Action for Percona Server for MySQL

InnoDB Flushing in Action for Percona Server for MySQL

As the second part of the earlier post Give Love to Your SSDs – Reduce innodb_io_capacity_max! we wanted to put together some concepts on how InnoDB flushing works in recent Percona Server for MySQL versions (8.0.x prior to 8.0.19, or 5.7.x). It is important to understand this aspect of InnoDB in order to tune […]

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Deploying the Percona Kubernetes Operator for XtraDB Cluster in Amazon (AWS)

Percona Kubernetes Operator for Percona XtraDB Cluster in AWS

Being that Amazon is one of the most-used cloud vendors, it is only natural that one may ask “How can Kubernetes be used in AWS?“. And the answer is – not that different than with other cloud vendors. What one needs is two things (and this applies universally): a Kubernetes cluster + the Percona […]

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