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Installing Percona Monitoring and Management (PMM) for the First Time

 | February 24, 2017 |  Posted In: Database Monitoring, Docker, MongoDB, MySQL, Percona Monitoring and Management, Percona Server, Percona Server for MongoDB, Percona Software, Percona XtraDB Cluster, PMM, ProxySQL, Solutions Engineering, XtraDB Cluster

Percona Monitoring and Management 2

This post is another in the series on Percona’s MongoDB 3.4 bundle release. This post is meant to walk a prospective user through the benefits of Percona Monitoring and Management (PMM), how it’s architected and the simple install process. By the end of this post, you should have a good idea of what PMM is, […]

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Percona Software News and Roadmap Update with CEO Peter Zaitsev: Q1 2017

 | January 27, 2017 |  Posted In: Docker, Events and Announcements, MongoDB, MySQL, Percona MySQL Consulting, Percona MySQL Support, Percona Software, Percona Support, Percona XtraBackup, Percona XtraDB Cluster, PMM, Technical Webinars, XtraDB Cluster

Percona Software News and Roadmap Update

This blog post is a summary of the webinar Percona Software News and Roadmap Update – Q1 2017 given by Peter Zaitsev on January 12, 2017. Over the last few months, I’ve had the opportunity to meet and talk with many of Percona’s customers. I love these meetings, and I always get a bunch of questions […]

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Galera Cache (gcache) is finally recoverable on restart

 | November 30, 2016 |  Posted In: MySQL, Percona XtraDB Cluster, XtraDB Cluster

Gcache

This post describes how to recover Galera Cache (or gcache) on restart. Recently Codership introduced (with Galera 3.19) a very important and long awaited feature. Now users can recover Galera cache on restart. Need If you gracefully shutdown cluster nodes one after another, with some lag time between nodes, then the last node to shutdown holds […]

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All You Need to Know About GCache (Galera-Cache)

 | November 16, 2016 |  Posted In: High-availability, MySQL, Percona XtraDB Cluster, XtraDB Cluster

GCache

This blog discusses some important aspects of GCache. Why do we need GCache? Percona XtraDB Cluster is a multi-master topology, where a transaction executed on one node is replicated on another node(s) of the cluster. This transaction is then copied over from the group channel to Galera-Cache followed by apply action. The cache can be discarded immediately […]

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Percona XtraDB Cluster 5.7.14-26.17 GA is now available

 | September 29, 2016 |  Posted In: Events and Announcements, MySQL, Percona Software, Percona XtraDB Cluster, ProxySQL, XtraDB Cluster

ProxySQL Admin

This Percona XtraDB Cluster 5.7.14-26.17 GA release is dedicated to the memory of Federico Goncalvez, our colleague with Percona’s Uruguayan team until his tragic death on September 6, 2016. Fede, we miss you. Percona announces the first general availability (GA) release in the Percona XtraDB Cluster 5.7 series on September 29, 2016. Binaries are available from the downloads area or […]

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Percona XtraDB Cluster 5.7.12 RC1 is now available

 | August 11, 2016 |  Posted In: Events and Announcements, MySQL, Percona Software, Percona XtraDB Cluster, XtraDB Cluster

ProxySQL Admin

Percona announces the first release candidate (RC1) in the Percona XtraDB Cluster 5.7 series on August 9, 2016. Binaries are available from the downloads area or our software repositories. Percona XtraDB Cluster 5.7.12-5rc1-26.16 is based on the following: Percona Server 5.7.12 Galera Replicator 3.16 This release includes all changes from upstream releases and the following: New Features PXC Strict […]

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Galera warning “last inactive check”

 | June 2, 2016 |  Posted In: Percona XtraDB Cluster, XtraDB Cluster

Managing Replication

In this post, we’ll discuss the Galera warning “last inactive check” and what it means. Problem I’ve been working with Percona XtraDB Cluster quite a bit recently, and have been investigating various warnings. I came across this one today: [Warning] WSREP: last inactive check more than PT1.5S ago (PT1.51811S), skipping check This warning is related […]

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Galera Error Failed to Report Last Committed (Interrupted System Call)

 | May 27, 2016 |  Posted In: MySQL, Percona XtraDB Cluster, XtraDB Cluster

In this blog, we’ll discuss the ramifications of the Galera Error Failed to Report Last Committed (Interrupted System Call). I have recently seen this error with Percona XtraDB Cluster (or Galera): [Warning] WSREP: Failed to report last committed 549684236, -4 (Interrupted system call) It was posted in launchpad as a bug in 2013: https://bugs.launchpad.net/percona-xtradb-cluster/+bug/1434646 My […]

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Better high availability: MySQL and Percona XtraDB Cluster with good application design

 | December 21, 2015 |  Posted In: High-availability, Insight for DBAs, MySQL, Percona XtraDB Cluster, Replication, XtraDB Cluster

High Availability Have you ever wondered if your application should be able to work in read-only mode? How important is that question? MySQL seems to be the most popular database solution for web-based products. Most typical Internet application workloads consist of many reads, with usually few writes. There are exceptions of course – MMO games […]

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