Inconsistent Voting in Percona XtraDB Cluster

Cluster Error Voting

AKA Cluster Error Voting…
What is Cluster Error Voting (CEV)?
“Cluster Error Voting is a new feature implemented by Alexey Yurchenko, and it is a protocol for nodes to decide how the cluster will react to problems in replication. When one or several nodes have an issue applying an incoming transaction(s) (e.g., suspected inconsistency), this new […]

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InnoDB File Growth Weirdness

InnoDB File Growth Weirdness

There is a common pattern in life, you often discover or understand things by accident. Many scientific discoveries fit such a description. In our database world, I was looking to see how BLOB/TEXT columns are allocated using overlay pages and I stumbled upon something interesting and unexpected. Let me present to you my findings, […]

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Changes to Percona Monitoring and Management on AWS Marketplace

Percona Monitoring and Management AWS Marketplace

Percona Monitoring and Management has been available for single-click deployment from AWS Marketplace for several years now, and we have hundreds of instances concurrently active and growing rapidly due to unparalleled ease of deployment.
Today we’re announcing we are changing pricing for Percona Monitoring and Management on AWS Marketplace. Currently, Percona Monitoring and Management (PMM) […]

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Improving Percona Monitoring and Management EC2 Instance Resilience Using CloudWatch Alarm Actions

Percona Monitoring and Management EC2 Instance Resilience Using CloudWatch

Nothing lasts forever, including hardware running your EC2 instances. You will usually receive an advance warning on hardware degradation and subsequent instance retirement, but sometimes hardware fails unexpectedly. Percona Monitoring and Management (PMM) currently doesn’t have an HA setup, and such failures can leave wide gaps in monitoring if not resolved quickly.
In this post, […]

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Percona Live ONLINE: How Companies Manage Customer & Data Volume Rises While Staying Performant

Percona Live ONLINE

The latest schedule for Percona Live ONLINE 2021, taking place on May 12-13, allows you to filter by track to identify the sessions that interest you most!
The conference takes place May 12-13 and features more than 150 expert speakers and over 160 hours of content across 200 sessions, representing dozens of projects, communities, and […]

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