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InnoDB vs TokuDB in LinkBench benchmark
Previously I tested Tokutek’s Fractal Trees (TokuMX & TokuMXse) as MongoDB storage engines – today let’s look into the MySQL area.I am going to use modified LinkBench in a heavy IO-load.I compared...
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Multi-source replication in MySQL 5.7 vs Tungsten Replicator
MySQL 5.7 comes with a new set of features and multi-source replication is one of them. In few words this means that one slave can replicate from different masters simultaneously.During the last couple...
View ArticleWhy base64-output=DECODE-ROWS does not print row events in MySQL binary logs
Lately I saw many cases when users specified option--base64-output=DECODE-ROWS to print out a statement representation of row events in MySQL binary logs just to get nothing. Reason for this is...
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Featured Talk: The Future of Replication is Today: New Features in Practice
In the past years, both MySQL 5.6, MySQL 5.7 and MariaDB 10 have been successful implementing new features. For many DBAs, the “old way” of replicating data is comfortable so taking the action to...
View ArticleOptimizing PXC Xtrabackup State Snapshot Transfer
State Snapshot Transfer (SST) at a glancePXC uses a protocol called State Snapshot Transfer to provision a node joining an existing cluster with all the data it needs to synchronize. This is analogous...
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Find unused indexes on MongoDB and TokuMX
Finding and removing unused indexes is a pretty common technique to improve overall performance of relational databases. Less indexes means faster insert and updates but also less disk space used. The...
View ArticleAdvanced Query Tuning in MySQL 5.6 and MySQL 5.7 Webinar: Q&A
Thank you for attending my July 22 webinar titled “Advanced Query Tuning in MySQL 5.6 and 5.7” (my slides and a replay available here). As promised here is the list of questions and my answers (thank...
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ObjectRocket’s David Murphy talks about MongoDB, Percona Live Amsterdam
Say hello to David Murphy, lead DBA and MongoDB Master at ObjectRocket (a Rackspace company). David works on sharding, tool building, very large-scale issues and high-performance MongoDB architecture....
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Facebook’s Simon Martin on semi-synchronous replication
Facebook, with 1.49 billion monthly active users, is one of the world’s top MySQL users. Simon Martin, a production engineer on Facebook’s MySQL Infrastructure team, has been working with MySQL for...
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Percona Server audit log plugin best practices
Auditing your database means tracking access and changes to your data and db objects. The Audit Log Plugin has been shipped with Percona Server since 5.5.37/5.6.17, for a little over 12 months. Prior...
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