July 30, 2014

Faster Point In Time Recovery with LVM2 Snaphots and Binary Logs

LVM snapshots is one powerful way of taking a consistent backup of your MySQL databases – but did you know that you can now restore directly from a snapshot (and binary logs for point in time recovery) in case of that ‘Oops’ moment? Let me show you quickly how. This howto assumes that you already […]

What I learned while migrating a customer MySQL installation to Amazon RDS

Hi, I recently had the experience of assisting with a migration of a customer MySQL installation to Amazon RDS (Relational Database Service). Amazon RDS is a great platform for hosting your MySQL installation and offers the following list of pros and cons: You can scale your CPU, IOPS, and storage space separately by using Amazon […]

A conversation with 5 Facebook MySQL gurus

Facebook, the undisputed king of online social networks, has 1.23 billion monthly active users collectively contributing to an ocean of data-intensive tasks – making the company one of the world’s top MySQL users. A small army of Facebook MySQL experts will be converging on Santa Clara, Calif. next week where several of them are leading […]

Introducing backup locks in Percona Server

TL;DR version: The backup locks feature introduced in Percona Server 5.6.16-64.0 is a lightweight alternative to FLUSH TABLES WITH READ LOCK and can be used to take both physical and logical backups with less downtime on busy servers. To employ the feature with mysqldump, use mysqldump –lock-for-backup –single-transaction. The next release of Percona XtraBackup will […]

Connecting orphaned .ibd files

There are two ways InnoDB can organize tablespaces. First is when all data, indexes and system buffers are stored in a single tablespace. This is typicaly one or several ibdata files. A well known innodb_file_per_table option brings the second one. Tables and system areas are split into different files. Usually system tablespace is located in […]

Percona Server 5.1.47-rel11.0

Dear Community, Percona Server version 5.1.47-rel11.0 is available for download now. The changes in this release include: New features Percona Server is now based on MySQL 5.1.47, and XtraDB is now based on InnoDB plugin 1.0.8. XtraDB now uses the fast recovery code released in InnoDB Plugin version 1.0.8, instead of Percona’s earlier fast-recovery code. […]

MongoDB Approach to Availability

Another thing I find interesting about MongoDB is its approach to Durability, Data Consistency and Availability. It is very relaxed and will not work for some applications but for others it can be usable in current form. Let me explain some concepts and compare it to technologies in MySQL space. First I think MongoDB is […]

XtraDB storage engine release 1.0.6-9

Dear Community, As of today Release 9 of XtraDB storage engine is available. The release includes following new features: The release is base on 1.0.6 version of InnoDB plugin. MySQL 5.1.42 as a base release Separate purge thread and LRU dump is implemented (this feature was actually added in Release 8, but somehow it was […]

XtraDB storage engine release 1.0.3-7

Dear Community, Today we are announcing XtraDB release 7. This is the last release based on InnoDB plugin version 1.0.3, as you might know Innobase has released 1.0.4. The release includes following new features: MySQL 5.1.37 as a base release speed hack for buf_flush_insert_sorted_into_flush_list controlled by the new variable innodb_fast_recovery Fixed bugs: MySQL Bugs: #45357: […]

5.0.84-build18 Percona binaries

Dear Community, The 18-th build of MySQL server with Percona patches is available now. Comparing to the previous release it has following new features: The build is based on MySQL-5.0.84 Fixed the issue with CLIENT_STATISTICS New patch innodb_recovery_patches.patch greatly improves recovery time Fixed bugs in the build: Bug #407117 in Percona patches: “any mysql-test fails […]