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Announcing Percona Server for MySQL 5.6.10-60.2

Percona is glad to announce the release of Percona Server for MySQL 5.6.10-60.2 on March 14, 2013.  (Downloads are available here and from the experimental Percona Software Repositories). Based on MySQL 5.6.10, including all the bug fixes in it, Percona Server 5.6.10-60.2 is the third ALPHA release in the Percona Server 5.6 series. All of Percona‘s software is open-source and free, all the […]

Replication checksums in MySQL 5.6

MySQL 5.6 has an impressive list of improvements. Among them, replication checksums caught my attention as it seems that many people misunderstand the real added value of this new feature. I heard people think that with replication checksums, data integrity between the master and its replicas is now enforced. As we’ll see, it’s not that […]

Announcing Percona Server 5.1.66-14.1

Percona is glad to announce the release of Percona Server 5.1.66-14.1 on October 26th, 2012 (Downloads are available here and from the Percona Software Repositories). Based on MySQL 5.1.66, including all the bug fixes in it, Percona Server 5.1.66-14.1 is now the current stable release in the 5.1 series. All of Percona‘s software is open-source and free, all the details of the release can […]

Percona Server 5.5.23-25.3 released!

Percona is glad to announce the release of Percona Server 5.5.23-25.3 on May 16, 2012 (Downloads are available here and from the Percona Software Repositories). Based on MySQL 5.5.23, including all the bug fixes in it, Percona Server 5.5.23-25.3 is now the current stable release in the 5.5 series. All of Percona‘s software is open-source and free, all the details of the release can […]

Bug#12704861

As Mark pointed out, there isn’t a lot of detail in the release notes about what could potentially be a very serious problem that is fixed in MySQL 5.1.60. I’ll repeat here the full documentation from the release notes: “InnoDB Storage Engine: Data from BLOB columns could be lost if the server crashed at a precise […]

Percona Server 5.5.17-22.1 released

Percona is glad to announce the release of Percona Server 5.5.17-22.1 on November 19th, 2011 (Downloads are available here and from the Percona Software Repositories). Based on MySQL 5.5.17, including all the bug fixes in it, Percona Server 5.5.17-22.1 is now the current stable release in the 5.5 series. All of Percona ‘s software is open-source and free, all the details of the release can […]

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 […]