Percona XtraDB Cluster 8.4.6-6.1 → 8.4.8-8.1
2 releases · 0 breaking changes · 0 security fixes · 0 advisories fixed
0security0breaking0deprecated17feature15fix
Breaking changes
None in the release notes.
Security changes
None in the release notes.
Every release in between
featureThe warning associated with redo logging being disabled is no longer present, as the underlying condition that triggered the warning has been eliminated. (Bug #37645185)
featureA problem affecting the handling of large insert operations has been corrected, improving stability during bulk data loads. (Bug #38208188)
featureAn error that could arise when running certain SQL statements has been resolved. (Bug #38573285)
featureIssues encountered when generating table definitions via SHOW CREATE TABLE have been fixed. (Bug #38448700)
featureBug #38298692 was addressed as part of the same fix set as Bug #38448700, resolving related inconsistencies in table metadata handling. (Bug #38298692)
featurePerformance regressions affecting queries that rely on regular expression matching have been corrected. (Bug #114056, Bug #36326728)
featureThe bundled OpenSSL dependency has been updated, addressing the issue tracked under Bug #38632932. (Bug #38632932)
featureA concurrency flaw in InnoDB that could occur when executing SQL through the que_eval_sql interface has been removed. (Bug #118705, Bug #38310595)
featureA timing issue that allowed binary logs to be removed before persisted expiration settings were fully applied has been fixed. (Bug #38554467)
featureSeveral defects that prevented connections from closing properly when using the Thread Pool have been resolved. (Bug #38170188, Bug #36782728, Bug #38549372)
featureAn issue that caused gaps in GTID sequences when the replica_skip_errors option was enabled has been fixed. (Bug #28590993)
fixPXC-3583: Fixed an issue where the validate-config tool incorrectly reported that ssl-ca, ssl-cert, and ssl-key must all be defined to use encrypted traffic.
fixPXC-4753: Fixed an issue where Percona audit log filter execution did not sync across Percona XtraDB Cluster nodes, although the audit log filter synced correctly on async or Group Replication replicas when executed on their source.
fixPXC-4765: Fixed an issue where creating a trigger with a definer caused an inconsistency error and disconnected the node from the cluster.
fixPXC-4802: Fixed a misleading “Initiating SST cancellation” log message that was printed during fatal signal handling.
fixPXC-4814: Fixed an issue where OPTIMIZE TABLE failed when wsrep_OSU_method was set to RSU (Rolling Schema Update), due to case-sensitive writes to the binary log.
fixPXC-4823: Fixed an issue where an asynchronous Percona XtraDB Cluster replica stalled when replicating OPTIMIZE TABLE.
fixPXC-4845: Fixed an issue where a node remained up and running after an Incremental State Transfer (IST) failure, which could cause other nodes in the cluster to become unresponsive.
fixPXC-4800: Fixed replication for internally generated transactions, ensuring operations on mysql and performance_schema tables and internal Thread Handler/Thread Data (THDs) are properly tracked while keeping replication suppressed by default.
fixPXC-4965: Fixed an issue where running SET PASSWORD with a single quote (for example, SET PASSWORD="a'b") could cause a node to leave the cluster.
featureThe audit log plugin has been reintroduced in Percona Server for MySQL 8.4. However, it is already marked as deprecated and is planned for removal in a future release. This deprecation is due to the availability of the audit log filter component, which is the recommended replacement. Users should…
featureFixed an issue that caused excessive memory chunk usage for very large buffer pools, which could lead to allocation failures. The allocation process now includes validation to ensure sufficient and stable memory allocation. (Bug #37994397)
featureFixed an issue where assertion failures could occur due to data size and bounds mismatches during DDL file operations. (Bug #37882398)
featurePXC-4756: Improved startup behavior during State Snapshot Transfer (SST) when using large InnoDB buffer pools with innodb_numa_interleave enabled could delay post-processing long enough to trigger the 300-second SST timeout. Find more information in Percona XtraBackup SST configuration.
fixPXC-4292: Fixed an issue where State Snapshot Transfer (SST) cleanup searched identical directories multiple times when InnoDB paths pointed to the same location.
fixPXC-4526: Replication failed and the node became inconsistent when a transaction was committed using a tagged Global Transaction Identifier (GTID).
fixPXC-4682: Fixed an issue where SST/IST progress printed “-nan%” in the MySQL error log; it now correctly displays “0%”.
fixPXC-4709: Fixed an issue where a node could be evicted if CREATE/ALTER USER was executed without the AUTHENTICATION_POLICY_ADMIN privilege.
fixPXC-4714: APT package was missing a dependency on ps unix utility, which is used by wsrep_sst_xtrabackup-v2.
fixPXC-4789: Running an UPDATE on a parent table and a RENAME TABLE on a child table at the same time on different nodes could trigger a BF-BF (brute force–brute force) conflict and cause a node to be evicted from the cluster.
featurePercona XtraDB Cluster 8.4 adds support for Debian 13.
featurePercona XtraDB Cluster 8.4 has ended support for Ubuntu 20.04.