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The hidepid Options for /proc and Percona XtraDB Cluster Don’t Play Well...
In this blog, we’ll look at how the hidepid options for /proc and Percona XtraDB Cluster can fight with one another. One of the things I like about consulting at Percona is the opportunity to be...
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Percona XtraDB Cluster 5.6.38-26.23 Is Now Available
Percona announces the release of Percona XtraDB Cluster 5.6.38-26.23 (PXC) on January 24, 2018. Binaries are available from the downloads section or our software repositories. Percona XtraDB Cluster...
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Percona XtraDB Cluster 5.7.20-29.24 Is Now Available
Percona announces the release of Percona XtraDB Cluster 5.7.20-29.24 (PXC) on January 26, 2018. Binaries are available from the downloads section or our software repositories. NOTE: Due to new package...
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Percona XtraDB Cluster 5.6.39-26.25 Is Now Available
Percona announces the release of Percona XtraDB Cluster 5.6.39-26.25 (PXC) on February 26, 2018. Binaries are available from the downloads section or our software repositories. Percona XtraDB Cluster...
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Percona XtraDB Cluster 5.7.21-29.26 Is Now Available
Percona announces the release of Percona XtraDB Cluster 5.7.21-29.26 (PXC) on March 2, 2018. Binaries are available from the downloads section or our software repositories. Percona XtraDB Cluster...
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Webinar Thursday, March 22, 2018: Percona XtraDB Cluster 5.7 with ProxySQL...
Please join Percona’s Ramesh Sivaraman (QA Engineer) and Krunal Bauskar (Software Engineer, Percona XtraDB Cluster Lead) as they present Percona XtraDB Cluster 5.7 with ProxySQL for Your MySQL High...
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MySQL Test Framework for Percona XtraDB Cluster
At my latest webinar “MySQL Test Framework (MTR) for Troubleshooting”, I received an interesting question about MTR test cases for Percona XtraDB Cluster (PXC). Particularly about testing SST and IST....
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PXC loves firewalls (and System Admins loves iptables)
Let them stay together. In the last YEARS, I have seen quite often that users, when installing a product such as PXC, instead of spending five minutes to understand what to do just run iptables -F and...
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Percona XtraDB Cluster 5.6.40-26.25 Is Now Available
Percona announces the release of Percona XtraDB Cluster 5.6.40-26.25 (PXC) on June 20, 2018. Binaries are available from the downloads section or our software repositories. Percona XtraDB Cluster...
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Percona XtraDB Cluster 5.7.22-29.26 Is Now Available
Percona announces the release of Percona XtraDB Cluster 5.7.22-29.26 (PXC) on June 29, 2018. Binaries are available from the downloads section or our software repositories. Percona XtraDB Cluster...
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Learning MySQL 5.7: Q & A
In this post I’ll answer questions I received in my Wednesday, July 19, 2017, webinar Learning MySQL 5.7! First, thank you all who attended the webinar. The link to the slides and the webinar recording...
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Best Practices for Percona XtraDB Cluster on AWS
In this blog post I’ll look at the performance of Percona XtraDB Cluster on AWS using different service instances, and recommend some best practices for maximizing performance. You can use Percona...
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Percona XtraDB Cluster 5.6.41-28.28 Is Now Available
Percona announces the release of Percona XtraDB Cluster 5.6.41-28.28 (PXC) on September 18, 2018. Binaries are available from the downloads section or our software repositories. Percona XtraDB Cluster...
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Percona XtraDB Cluster 5.7.23-31.31 Is Now Available
This release has been superseded by 5.7.23-31.31.2 after a critical regression was found. Please update to the latest release. Percona is glad to announce the release of Percona XtraDB Cluster...
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CRITICAL UPDATE for Percona XtraDB Cluster users: 5.7.23-31.31.2 Is Now...
To resolve a critical regression, Percona announces the release of Percona XtraDB Cluster 5.7.23-31.31.2 on October 2, 2018 Binaries are available from the downloads section or from our software...
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MySQL High Availability On-Premises: A Geographically Distributed Scenario
MySQL High Availability. Shutterstock.com In this article, we’ll look at an example of an on-premises, geographically distributed MySQL high availability solution. It’s part of a longer series on some...
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How Not to do MySQL High Availability: Geographic Node Distribution with...
Let’s talk about MySQL high availability (HA) and synchronous replication once more. It’s part of a longer series on some high availability reference architecture solutions over geographically...
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Percona XtraDB Cluster 5.7.24-31.33 Is Now Available
Percona is glad to announce the release of Percona XtraDB Cluster 5.7.24-31.33 (PXC) on January 4, 2019. Binaries are available from the downloads section or from our software repositories. Percona...
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Percona XtraDB Cluster 5.6.42-28.30 Is Now Available
Percona announces the release of Percona XtraDB Cluster 5.6.42-28.30 (PXC) on January 4, 2019. Binaries are available from the downloads section or our software repositories. Percona XtraDB Cluster...
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Percona XtraDB Cluster 5.7.25-31.35 Is Now Available
Percona is glad to announce the release of Percona XtraDB Cluster 5.7.25-31.35 on February 28, 2018. Binaries are available from the downloads section or from our software repositories. This release of...
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Percona XtraDB Cluster 5.6.43-28.32 Is Now Available
Percona is glad to announce the release of Percona XtraDB Cluster 5.6.43-28.32 on February 28, 2019. Binaries are available from the downloads section or from our software repositories. This release...
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Percona XtraDB Cluster 5.6.44-28.34 Is Now Available
Percona is glad to announce the release of Percona XtraDB Cluster 5.6.44-28.34 on June 19, 2019. Binaries are available from the downloads section or from our software repositories.Percona XtraDB...
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Percona XtraDB Cluster 5.7.26-31.37 Is Now Available
Percona is glad to announce the release of Percona XtraDB Cluster 5.7.26-31.37 on June 26, 2019. Binaries are available from the downloads section or from our software repositories.Percona XtraDB...
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Percona XtraDB Cluster 5.6.45-28.36 Is Now Available
Percona is glad to announce the release of Percona XtraDB Cluster 5.6.45-28.36 on September 17, 2019. Binaries are available from the downloads section or from our software repositories. Percona...
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Percona XtraDB Cluster 5.7.27-31.39 Is Now Available
Percona is happy to announce the release of Percona XtraDB Cluster 5.7.27-31.39 on September 18, 2019. Binaries are available from the downloads section or from our software repositories. Percona...
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Experimental Binary of Percona XtraDB Cluster 8.0
Percona is happy to announce the first experimental binary of Percona XtraDB Cluster 8.0 on October 1, 2019. This is a major step for tuning Percona XtraDB Cluster to be more cloud- and user-friendly....
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Percona XtraDB Cluster 8.0 New Feature: wsrep_sst_auth Removal
The problem In PXC 5.6 and 5.7, when using xtrabackup-v2 as the SST method, the DBA must create a user with the appropriate privileges for use by Percona XtraBackup (PXB). The username and password of...
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Percona XtraDB Cluster 8.0 (experimental release) : SST Improvements
Starting with the experimental release of Percona XtraDB Cluster 8.0, we have made changes to the SST process to make the process more robust and easier to use. mysqldump and rsync are no longer...
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Deploying the Percona Kubernetes Operator for XtraDB Cluster in Amazon (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....
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Help Drive the Future of Percona XtraDB Cluster
Percona is happy to announce the experimental release of Percona XtraDB Cluster 8.0. This is a major step for tuning Percona XtraDB Cluster to be more cloud- and user-friendly. This is the second...
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MySQL Group Replication – Partial Network Failure Performance Impact
In this two-part blog series, I wanted to cover some failover scenarios with Group Replication. In part one, I will discuss an interesting behavior and performance degradation I discovered while...
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Replication Between Two Percona XtraDB Clusters, GTIDs and Schema Changes
I got this question on the “How to Avoid Pitfalls in Schema Upgrade with Percona XtraDB Cluster (PXC)” webinar and wanted to answer it in a separate post. Will RSU have an effect on GTID consistency if...
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Smart Update Strategy in Percona Operator for MySQL Based on Percona XtraDB...
In Percona Operator for MySQL based on Percona XtraDB Cluster versions prior to 1.5.0, there were two methods for upgrading PXC clusters, and both of these use built-in StatefulSet update strategies....
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Infinitely Scalable Storage with High Compression Feature
It is no secret that compute and storage costs are the main drivers of cloud bills. Migration of data from the legacy data center to the cloud looks appealing at first as it significantly reduces...
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Change Storage Class on Kubernetes on the Fly
Percona Kubernetes Operators support various options for storage: Persistent Volume (PV), hostPath, ephemeral storage, etc. In most of the cases, PVs are used, which are provisioned by the Operator...
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Yearly Reminder: DDLs That Fail to Propagate May Cause Percona XtraDB Cluster...
Apologies for the silly title, but the issue is a real one, even though it is not a new thing. Schema upgrades are not an ordinary operation in Galera. For the subject at hand, the bottom line is:...
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Resolving the MySQL Active-Active Replication Dilemma
Multi-writer replication has been a challenge in the MySQL ecosystem for years before truly dedicated solutions were introduced – first Galera (and so Percona XtradDB Cluster (PXC)) replication (around...
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MySQL on Kubernetes with GitOps
GitOps workflow was introduced by WeaveWorks as a way to implement Continuous Deployment for cloud-native applications. This technique quickly found its way into devops and developer’s hearts as it...
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Online DDL With Group Replication in MySQL 8.0.27
In April 2021, I wrote an article about Online DDL and Group Replication. At that time we were dealing with MySQL 8.0.23 and also opened a bug report which did not have the right answer to the case...
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Preventing Stale Reads on Percona XtraDB Cluster by Enforcing Causality...
When we run a SELECT in a replica server and it returns a different result to the one we would have obtained had we queried the source server instead, due to changes in the dataset that have not yet...
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