Percona Server for MySQL 8.4.2-2 (2024-11-04)¶
Get started with Quickstart Guide for Percona Server for MySQL.
Percona Server for MySQL 8.4.2-2 includes all the features and bug fixes available in the MySQL 8.4 Community Edition in addition to enterprise-grade features developed by Percona.
Release highlights¶
Improvements and bug fixes introduced by Oracle for MySQL 8.4.1 and 8.4.2 and included in Percona Server for MySQL are the following:
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MySQL stopped unexpectedly during an UPDATE after an ALTER TABLE operation.
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Shutting down the server after an XA START with an empty XA transaction caused it to stop unexpectedly.
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Shutting down the replication applier or binlog applier during an empty XA transaction caused the system to stop unexpectedly.
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The result from a spatial index with a column containing a spatial reference identifier (SRID) was empty. Using FORCE INDEX to scan this index caused an assertion error.
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In some cases, after creating more than 8000 tables, the server failed to restart.
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Startup tablespace file scanning performance was improved.
Find the complete list of bug fixes and changes in the MySQL 8.4.1 Release Notes and MySQL 8.4.2 Release Notes.
Bug fixes¶
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PS-8057:
slow_query_log_filedoes not match the filename defined in my.cnf. -
PS-9144: Missing rows after running a null
ALTERwithALGORTITHM=INPLACE. -
PS-9214: An
ALTERtable online results in a “duplicate key” error on the primary key (only index). -
PS-9306: The following MySQL versions unexpectedly exit if the database has more than 10K tables:
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8.0.38
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8.4.1
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9.0.0
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PS-9314: Using a JSON_TABLE in Percona Server for MySQL 8.0.36 causes a signal 11 error.
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PS-9286: The KMIP component left keys in a
pre-activestate. -
PS-9384: A race condition between
dict_stats_threadand the cost model initialization cause sporadic exits in Jenkins on start up.
Additional resources¶
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Install Percona Server for MySQL 8.4
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Download product binaries, packages, and tarballs at Percona Software Downloads
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For training, contact Percona Training - Start learning now
Get expert help¶
If you need assistance, visit the community forum for comprehensive and free database knowledge, or contact our Percona Database Experts for professional support and services.