What is the goal of Maria 1.5 (current release, developed based on MySQL 5.1)?
To make a crash-safe alternative to MyISAM. That is, when mysqld restarts after a crash occurs, Maria will recover all tables to the state as of the start of a statement or at the start of a previous LOCK TABLES. Another primary goal for this release is to make Maria code of good quality; performance is not a primary goal for this release! We will start to work on performance when we know we have a good basis for Maria! The goal is more clearly defined in the WorkLog for Maria 1.5. Click on ‘Dependent Tasks’ to see the details. Maria 1.5 is now in beta and the source tree can be accessed through Launchpad. For things that still need to be done for Maria 1.5 GA, the first Maria main release, check the section “Missing features that are planned to be fixed before release” in the KNOWN_BUGS.txt file. We also have a Maria 1.5 tree based on MySQL 6.0. We will update this from time to time but we will not focus development on the 6.0 branch until MySQL 6.0 is reasonably stable.