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Percona Software for MySQL Documentation

Percona Server for MySQL 8.0.25-15 (2021-07-13)

Percona Server for MySQL 8.0.25-15 includes all the features and bug fixes available in the MySQL 8.0.24 Community Edition and the MySQL 8.0.25 Community Edition in addition to enterprise-grade features developed by Percona.

NOTE: The TokuDB Storage Engine was declared as deprecated in Percona Server for MySQL 8.0 and will be disabled in upcoming 8.0 versions.

We recommend migrating to the MyRocks Storage Engine.

For more information, see the Percona blog post: Heads-Up: TokuDB Support Changes and Future Removal from Percona Server for MySQL 8.0.

New Features

  • PS-7182: Create functionality to expose defined data from procfs for agentless environment

  • PS-7671: Add rocksdb_allow_unsafe_alter to enable crash unsafe INPLACE ADD|DROP partition

  • PS-7327: INPLACE ADD|DROP partitions in MyRocks

Improvements

  • PS-7366: Add jemalloc memory allocation profiling on PS 8.0

Bugs Fixed

  • PS-7722: Multiple-Column Index using Column Prefix Key Parts fails with Index Condition Pushdown in MyRocks

  • PS-7665: The performance_schema.metadata_locks m_column_name_length is uninitialized for MDL_key::FOREIGN_KEY (Upstream #103532)

  • PS-7695: The Boost download is no longer available. Using the -DDOWNLOAD_BOOST option with CMake (Thanks to user Benjamin Kuen for reporting this issue).

  • PS-6802: Configure fails with make-4.3 with CMake Error at storage/rocksdb/CMakeLists.txt:152 (STRING) (Thanks to user Thomas Deutschmann for reporting this issue).

  • PS-7648: Optimizer switch “favor_range_scan” is not documented

  • PS-7595: Same version upgrade from PS->PXC needs mysql_upgrade

  • PS-7657: A server exit caused with an update query on a partition table with a compressed column

  • PS-7557: Mysql server version 8.0.22-13 executing the Data Masking plugin causes a server exit (Thanks to user Alfonso Luciano for reporting this issue).

  • PS-1116: LP #1719506: Audit plugin reports “command_class=error” for server-side prepared statements.

Known issues

  • PS-7787: Default values for the procfs_files_spec contains entries blocks by SELinux.

  • PS-7788: Wildcard globbing in procfs_files_spec does not work.

  • PS-7790: ProcFS access boundary to /proc and /sys can be bypassed with …

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Last update: 2022-09-22