Percona XtraDB Cluster 8.0.31-23 (2023-03-14)¶
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Percona XtraDB Cluster (PXC) supports critical business applications in your public, private, or hybrid cloud environment. Our free, open source, enterprise-grade solution includes the high availability and security features your business requires to meet your customer expectations and business goals.
Percona XtraDB Cluster is based on Percona Server for MySQL. Find a complete list of improvements and bug fixes in the Percona Server for MySQL 8.0.31-23 (2022-11-21) release notes.
This release adds the following feature in tech preview:
Improvements and bug fixes introduced by Oracle for MySQL 8.0.31 and included in Percona Server for MySQL are the following:
InnoDB supports parallel index builds. This improves index build performance. The sorted index entries are loaded into a B-tree in a multithread. In previous releases, this action was performed by a single thread.
The Performance and sys schemas show metrics for the global and session memory limits introduced in MySQL 8.0.28.
The following columns have been added to the Performance Schema tables:
Performance Schema tables Columns SETUP_INSTRUMENTS FLAGS THREADS CONTROLLED_MEMORY, MAX_CONTROLLED_MEMORY, TOTAL_MEMORY, MAX_TOTAL_MEMORY EVENTS_STATEMENTS_CURRENT, EVENTS_STATEMENTS_HISTORY, EVENTS_STATEMENTS_HISTORY_LONG MAX_CONTROLLED_MEMORY, MAX_TOTAL_MEMORY Statement Summary Tables MAX_CONTROLLED_MEMORY, MAX_TOTAL_MEMORY Performance Schema Connection Tables MAX_SESSION_CONTROLLED_MEMORY, MAX_SESSION_TOTAL_MEMORY PREPARED_STATEMENTS_INSTANCES MAX_CONTROLLED_MEMORY, MAX_TOTAL_MEMORY
The following columns have been added to the sys schema
controlled_by_defaultflag has been added to the
PROPERTIEScolumn of the
Now, you can add and remove non-global memory instruments to the set of controlled-memory instruments. To do this, set the value of the
SQL> UPDATE PERFORMANCE_SCHEMA.SETUP_INTRUMENTS SET FLAGS="controlled" WHERE NAME='memory/sql/NET::buff';
audit_log_flushvariable has been deprecated and will be removed in future releases.
Find the full list of bug fixes and changes in the MySQL 8.0.31 Release Notes.
Added support for GCache and Write-Set encryption.
PXC-3574: Added support for the
- The Data at Rest encryption now encrypts Record-Set cache.
PXC-3989: Added support for keyring components.
PXC-4077: Injecting an empty transaction caused GTID inconsistencies between nodes.
PXC-4120: Enabling wsrep-debug created multiple entries of
wsrep_commit_empty()in the Error log.
PXC-4126: When stream replication and TOI are active, the
CREATE USERstatement was not allowed.
PXC-4116: A PXC replica node stalled with parallel asynchronous parallel replication.
PXC-4148: A fix for the
MDL conflict db= ticket=10 solved by aborterror.