Release Notes for MariaDB Xpand 6.0.2

MariaDB Xpand is a distributed SQL database that is part of MariaDB Enterprise. This is the second release in the MariaDB Xpand 6 series.

MariaDB Xpand 6.0.2 was released on 2021-09-14.

This release note pertains to MariaDB Xpand version 6.0.2 and the Xpand Storage Engine packaged as an update to MariaDB Enterprise Server 10.6.4-1.

This release is a Technical Preview. Software in technical preview should not be used for production workloads.

This release contains multiple fixes to stability and performance. Users of Xpand 6.0.1 should upgrade to this release.

Notable Changes

  • The default compression algorithm for columnar indexes has changed.

  • Improved error message when trying to create a foreign key on a column with a columnar index.

  • For increased compatibility with MariaDB Enterprise Server, the utf8mb3 character set is mapped to utf8.

Interface Changes

  • Added stats to statd and exporters for:

    • lockman.sessions_holding_locks

    • lockman.waiters histogram

    • sessions.node.X.limit and sessions.node.X.remaining

    • transactions.open.seconds

    • io.network.internode.latency.seconds

  • Renamed statd metric from lockman.num_locks to lockman.num_waiters