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Percona Live Europe 2015 conference, tutorials schedule now available

 | July 9, 2015 |  Posted In: Events and Announcements, MySQL, Percona Live

The conference and tutorial schedule for Percona Live Europe 2015, September 21-23 in Amsterdam, was published this morning and this year’s event will focus on MySQL, NoSQL and Data in the Cloud. Conference sessions, which will follow each morning’s keynote addresses, feature a variety of formal tracks and sessions. Topic areas include: high availability (HA), […]

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Keep your MySQL data in sync when using Tungsten Replicator

 | May 4, 2015 |  Posted In: Insight for DBAs, MariaDB, MySQL, MySQL 101

MySQL replication isn’t perfect and sometimes our data gets out of sync, either by a failure in replication or human intervention. We are all familiar with Percona Toolkit’s pt-table-checksum and pt-table-sync to help us check and fix data inconsistencies – but imagine the following scenario where we mix regular replication with the Tungsten Replicator: We […]

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Using MySQL 5.6 Global Transaction IDs (GTIDs) in production: Q&A

 | September 5, 2014 |  Posted In: MySQL, Percona MySQL Consulting, Technical Webinars

Thank you to all of you who attended my webinar last week about Global Transaction IDs (GTIDs), which were introduced in MySQL 5.6 to make the reconfiguration of replication straightforward. If you missed my webinar, you can still listen to the recording and download the sides (free). We had a lot of questions during the […]

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Explaining Ark Part 4: Fixing Majority Write Concern

 | August 7, 2014 |  Posted In: Tokutek, TokuView

This is the fourth post in a series of posts that explains Ark, a consensus algorithm we’ve developed for TokuMX and MongoDB to fix known issues in elections and failover. The tech report we released describes the algorithm in full detail. These posts are a layman’s explanation. This post assumes the reader is familiar with […]

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Explaining Ark Part 1: The Basics

 | July 22, 2014 |  Posted In: Tokutek, TokuView

Last week, we introduced Ark, a consensus algorithm similar to Raft and Paxos we’ve developed for TokuMX and MongoDB. The purpose of Ark is to fix known issues in elections and failover. While the tech report detailing Ark explains everything formally, over the next few blog posts, I will go over Ark in layman’s terms. […]

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