Skip to content
Percona Software for MySQL Documentation

Percona Server for MySQL 8.0.23-14 (2021-05-12)

Percona Server for MySQL 8.0.23-14 includes all the features and bug fixes available in MySQL 8.0.23 Community Edition in addition to enterprise-grade features developed by Percona.

New Features

  • PS-7364: The net_buffer_length status variable shows the buffer size of the current connection. Specify SHOW GLOBAL to see cumulative buffer size for all connections. For more information, see Adaptive Network Buffers.

  • PS-5364: Update the keyring_vault plugin to support KV Secrets Engine Version 2 (kv-v2) (Thanks to Andrey Prokofyev for reporting this issue)

  • PS-4894: Users can add calculated/virtual columns + index for the MyRocks storage engine.

  • PS-7125: Users can reconfigure the TLS certificate at runtime and reload the certificate to the X Plugin (Upstream #99895)

  • PS-7442: Add documentation for the MyRocks Information Schema Tables ROCKSDB_ACTIVE_COMPACTION_STATS and ROCKSDB_COMPACTION_HISTORY.

  • PS-7441: Add documentation for the RocksDB variable rocksdb_max_compaction_history and deprecated the strict_collation_check variable.

  • PS-7049: Update the SELinux profile and the AppArmor Policy, making these security features easier to implement for organizations.

Improvements

  • PS-5846: Add support for the default value clause for the MyRocks storage engine. (Thanks to user denji for reporting this issue)

  • PS-6780: Optimize support for collations other than latin1/utf8 in MyRocks. This support allows MyRocks to reconstruct and return data directly from an index read.

Bugs Fixed

  • PS-1956: Update specific data types to 64-bit to make slow query logs more efficient.

  • PS-7593: If a transaction has executed, changing the tx-isolation level in a session is not honored and may cause service failure.

  • PS-7578: Fix the replication failure on Update when a replica server has a primary key and the source server does not.

  • PS-7498: Prevent the replication coordinator thread from being stuck due to the MASTER_DELAY while handling the partial relay log transactions. (Upstream #102647)

  • PS-7474: ROCKSDB: Row not retrieved when using character sets that do not support Secondary Key index-only scans.

  • PS-7618: Added the libmysqlclient.so.21(libmysqlclient_21)(64bit) to the PS80 Repository(Thanks to user Mark Frost for reporting this issue).

  • PS-7098: MyRocks: ICP fails with character sets that do not support Secondary Key index-only scans, for example, utf8mb4. (Thanks to user denis for reporting this issue)

  • PS-4497: Incorrect option error message for mysqlbinlog.

  • PS-7617: In the Grant tables, the Timestamp column displays when the last change occurred to a user. In specific tables, the Timestamp column may be set to NULL.

  • PS-7566: Correct version matching in RPM spec changelog for PS packages

  • PS-7499: Improve the error log when MyRocks fails with rocksdb_validate_tables=1

  • PS-7495: Block Tablespace DDL with LOCK TABLES FOR BACKUP (Upstream #102175)

  • PS-7291: Run a variable value check when setting it with ‘set persist_only’

  • PS-7492: Update slow log formatting for tmp tables related stats

Known Issues

  • PS-7683: If you are upgrading MyRocks from 8.0.22 to 8.0.23, you must run the following commands to add the ROCKSDB_COMPACTION_HISTORY and ROCKSDB_COMPACTION_STATS tables:
INSTALL PLUGIN ROCKSDB_COMPACTION_HISTORY SONAME 'ha_rocksdb.so';
INSTALL PLUGIN ROCKSDB_COMPACTION_STATS SONAME 'ha_rocksdb.so';

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.

Community Forum Get a Percona Expert

Last update: 2022-09-22