Percona XtraDB Cluster 8.0.34-26 (2023-11-01)¶
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 8.0.34-26 (2023-09-26) release notes.
Percona XtraDB Cluster implements telemetry that fills in the gaps in our understanding of how you use Percona XtraDB Cluster to improve our products. Participation in the anonymous program is optional. You can opt-out if you prefer not to share this information. Find more information in the Telemetry on Percona XtraDB Cluster document.
Improvements and bug fixes introduced by Oracle for MySQL 8.0.34 and included in Percona XtraDB Cluster are the following:
mysql_binlog_close()functions to the libmysqlclient.so shared library. These functions enable developers to access a MySQL server binary log.
For platforms on which OpenSSL libraries are bundled, the linked OpenSSL library for MySQL Server is updated from OpenSSL 1.1.1 to OpenSSL 3.0.9.
Deprecations and removals¶
mysqlpumpclient utility program is deprecated. The use of this program causes a warning. The
mysqlpumpclient may be removed in future releases. The applications that depend on
MySQL Shell Utilities.
sync_relay_log_infoserver system variable is deprecated. Using this variable or its equivalent startup
--sync-relay-log-infooption causes a warning. This variable may be removed in future releases. The applications that use this variable should be rewritten not to depend on it before the variable is removed.
binlog_formatserver system variable is deprecated and may be removed in future releases. The functionality associated with this variable, which changes the binary logging format, is also deprecated.
binlog_formatis removed, MySQL server supports only row-based binary logging. Thus, new installations should use only row-based binary logging. Migrate the existing installations that use the statement-based or mixed logging format to the row-based format.
The system variables
log_statements_unsafe_for_binlogused in the context of statement-based logging are also deprecated and may be removed in future releases.
Setting or selecting the values of deprecated variables causes a warning.
mysql_native_passwordauthentication plugin is deprecated and may be removed in future releases. Using
ALTER USER, and
SET PASSWORDoperations, insert a deprecation warning into the server error log if an account attempts to authenticate using
mysql_native_passwordas an authentication method.
keyring_encrypted_fileplugins are deprecated. These keyring plugins are replaced with the
Find the full list of bug fixes and changes in the MySQL 8.0.34 Release Notes.
PXC-4219: Starting a Percona XtraBackup process and issuing a
START REPLICAcommand simultaneously could deadlock the server.
PXC-4238: Running either the
asynchronous_connection_failover_add_sourceuser defined function or the
asynchronous_connection_failover_delete_sourceuser defined function generated an errant transaction, which could prevent a failover in the future.
ALTER USER/SET PASSWORDand
FLUSH PRIVILEGESsimultaneously on different Percona XtraDB Cluster nodes stalled the cluster.
PXC-4288: Galera Arbitrator (garbd) used 100% CPU.
PXC-4302: The GRANT statement could be replicated in a wrong way if
PXC-4310: A warning message had an incorrect link.
PXC-4296: The garbd 8.0.33 reported a wrong version.
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