Skip to content
logo
Percona Server for MySQL
Percona Server for MySQL 8.0.12-2rc1
Initializing search
    percona/psmysql-docs
    percona/psmysql-docs
    • Home
      • The Percona XtraDB storage engine
      • List of features available in Percona Server for MySQL releases
      • Percona Server for MySQL feature comparison
      • Changed in Percona Server 8.0
      • Understand version numbers
      • Install Percona Server for MySQL
        • Install using APT repository
        • Files in DEB package
        • Build APT packages
        • Install from downloaded DEB packages
        • Apt pinning
        • Run Percona Server for MySQL
        • Uninstall
        • Install using a RPM repository
        • Files in RPM package
        • Install from downloaded RPM packages
        • Run Percona Server for MySQL
        • Uninstall
        • Install with binary tarballs
        • Binary tarballs available
        • Install Percona Server for MySQL from a source tarball
        • Compile Percona Server for MySQL 8.0 from source
      • Post-installation
      • Percona Server for MySQL in-place upgrading guide: from 5.7 to 8.0
      • Upgrade using the Percona repositories
      • Upgrade from systems that use the MyRocks or TokuDB storage engine and partitioned tables
      • Upgrade using Standalone Packages
      • Running Percona Server for MySQL in a Docker Container
      • Docker environment variables
      • Improved InnoDB I/O scalability
      • Adaptive network buffers
      • Multiple page asynchronous I/O requests
      • Thread pool
      • XtraDB performance improvements for I/O-bound highly-concurrent workloads
      • Prefix index queries optimization
      • Limit the estimation of records in a Query
      • Jemalloc memory allocation profiling
      • The ProcFS plugin
      • Binary logs and replication improvements
      • Compressed columns with dictionaries
      • Extended SELECT INTO OUTFILE/DUMPFILE
      • Extended SET VAR optimizer hint
      • Improved MEMORY storage engine
      • Suppress warning messages
      • Limiting the disk space used by binary log files
      • Support for PROXY protocol
      • SEQUENCE_TABLE(n) function
      • Slow query log rotation and expiration
      • Trigger updates
      • Extended mysqlbinlog
      • Extended mysqldump
      • InnoDB full-text search improvements
      • Too many connections warning
      • Handle corrupted tables
      • Percona Toolkit UDFs
      • Kill idle transactions
      • XtraDB changed page tracking
      • Enforcing storage engine
      • Expanded fast index creation
      • Backup locks
      • Audit log plugin
      • Start transaction with consistent snapshot
      • Extended SHOW GRANTS
      • Utility user
      • Working with SELinux
      • Working with AppArmor
      • PAM authentication plugin
      • Server variables
      • SSL improvements
      • Data masking
        • Using LDAP authentication plugins
        • LDAP authentication plugin system variables
        • Data at Rest Encryption
        • Use the keyring component or keyring plugin
          • Using the Key Management Interoperability Protocol (KMIP)
          • Use the Amazon Key Management Service (AWS KMS)
          • FIDO authentication plugin
        • Encryption functions
        • Encrypt file-per-table tablespace
        • Encrypt a schema or a general tablespace
        • Encrypt the system tablespace
        • Encrypt temporary files
        • Encrypt binary log files and relay log files
        • Encrypting the Redo Log data
        • Encrypt the undo tablespace
        • Rotate the Master key
        • Work with Advanced Encryption Key Rotation
        • Encrypt doublewrite buffers
        • Verify the encryption for tables, tablespaces, and schemas
      • User statistics
      • Slow query log
      • Extended show engine InnoDB status
      • Show storage engines
      • Process list
      • Misc. INFORMATION_SCHEMA tables
      • Thread based profiling
      • InnoDB page fragmentation counters
      • Stacktrace
      • Libcoredumper
      • Manage group replication flow control
      • Group replication system variables
      • Percona MyRocks introduction
      • Percona MyRocks installation guide
      • Updated supported features
      • MyRocks limitations
      • Differences between Percona MyRocks and Facebook MyRocks
      • MyRocks Information Schema tables
      • MyRocks server variables
      • MyRocks status variables
      • Gap locks detection
      • Data loading
      • Installing and configuring Percona Server for MySQL with ZenFS support
      • TokuDB introduction
      • TokuDB installation
      • Use TokuDB
      • Fast updates with TokuDB
      • TokuDB files and file types
      • TokuDB file management
      • TokuDB background ANALYZE TABLE
      • TokuDB variables
      • TokuDB status variables
      • TokuDB fractal tree indexing
      • TokuDB troubleshooting
      • TokuDB Performance Schema integration
      • Frequently asked questions
      • Migrate and removing the TokuDB storage engine
      • Percona TokuBackup
      • Release notes index
      • Percona Server for MySQL 8.0.30-22 Update (2022-11-21)
      • Percona Server for MySQL 8.0.30-22 (2022-11-21)
      • Percona Server for MySQL 8.0.29-21 (2022-08-08)
      • Percona Server for MySQL 8.0.28-20 (2022-06-20)
      • Percona Server for MySQL 8.0.28-19 (2022-05-12)
      • Percona Server for MySQL 8.0.27-18 (2022-03-02)
      • Percona Server for MySQL 8.0.26-17 (2022-01-26)
      • Percona Server for MySQL 8.0.26-16 (2021-10-20)
      • Percona Server for MySQL 8.0.25-15 (2021-07-13)
      • Percona Server for MySQL 8.0.23-14 (2021-05-12)
      • Percona Server for MySQL 8.0.22-13 (2020-12-14)
      • Percona Server for MySQL 8.0.21-12 (2020-10-13)
      • Percona Server for MySQL 8.0.20-11 (2020-07-21)
      • Percona Server for MySQL 8.0.19-10 (2020-03-23)
      • Percona Server for MySQL 8.0.18-9
      • Percona Server for MySQL 8.0.17-8
      • Percona Server for MySQL 8.0.16-7
      • Percona Server for MySQL 8.0.15-6
      • Percona Server for MySQL 8.0.15-5
      • Percona Server for MySQL 8.0.14
      • Percona Server for MySQL 8.0.13-4
      • Percona Server for MySQL 8.0.13-3
      • Percona Server for MySQL 8.0.12-2rc1
        • Installation
        • New Features
        • Improvements
        • Bugs Fixed
        • Upcoming Features
      • List of upstream MySQL bugs fixed in Percona Server for MySQL 8.0
      • List of variables introduced in Percona Server for MySQL 8.0
      • Development of Percona Server for MySQL
      • Trademark policy
      • Index of INFORMATION_SCHEMA tables
      • Frequently asked questions
      • Copyright and licensing information
      • Glossary

    • Installation
    • New Features
    • Improvements
    • Bugs Fixed
    • Upcoming Features

    Percona Server for MySQL 8.0.12-2rc1¶

    Following the alpha release announced earlier, Percona announces the release candidate of Percona Server for MySQL 8.0.12-2rc1 on October 31, 2018. Download the latest version from the Percona web site or the Percona Software Repositories.

    This release is based on MySQL 8.0.12 and includes all bug fixes in it. It is a Release Candidate quality release and it is not intended for production. If you want a high quality, Generally Available release, use the current Stable version (the most recent stable release at the time of writing in the 5.7 series is 5.7.23-23).

    Percona provides completely open-source and free software.

    Installation¶

    As this is a release candidate, installation is performed by enabling the testing repository and installing the software via your package manager. For Debian based distributions, see apt installation instructions; for RPM based distributions. see yum installation instructions. Note that in both cases after installing the current percona-release package, you’ll need to enable the testing repository in order to install Percona Server for MySQL for MySQL 8.0.12-2rc1. For manual installations, you can download from the testing repository directly through our website.

    New Features¶

    • #4550: Native Partitioning support for MyRocks storage engine

    • #3911: Native Partitioning support for TokuDB storage engine

    • #4946: Add an option to prevent implicit creation of column family in MyRocks

    • #4839: Better default configuration for MyRocks and TokuDB

    • InnoDB changed page tracking has been rewritten to account for redo logging changes in MySQL 8.0.11. This fixes fast incremental backups for PS 8.0

    • #4434: TokuDB ROW_FORMAT clause has been removed, compression may be set by using the session variable tokudb_row_format instead.

    Improvements¶

    • Several packaging changes to bring Percona packages more in line with upstream, including split repositories. As you’ll note from our instructions above we now ship a tool with our release packages to help manage this.

    Bugs Fixed¶

    • #4785: Setting version_suffix to NULL could lead to handle_fatal_signal (sig=11) in Sys_var_version::global_value_ptr

    • #4788: Setting log_slow_verbosity and enabling the slow_query_log could lead to a server crash

    • #4937: Any index comment generated a new column family in MyRocks

    • #1107: Binlog could be corrupted when tmpdir got full

    • #1549: Server side prepared statements lead to a potential off-by-second timestamp on slaves

    • #4937: rocksdb_update_cf_options was useless when specified in my.cnf or on command line.

    • #4705: The server could crash on snapshot size check in RocksDB

    • #4791: SQL injection on slave due to non-quoting in binlogged ROLLBACK TO SAVEPOINT

    • #4953: rocksdb.truncate_table3 was unstable

    Other bugs fixed:

    • #4811: 5.7 Merge and fixup for old DB-937 introduces possible regression

    • #4885: Using ALTER ... ROW_FORMAT=TOKUDB_QUICKLZ lead to InnoDB: Assertion failure: ha_innodb.cc:12198:m_form->s->row_type == m_create_info->row_type

    • Numerous testsuite failures/crashes

    Upcoming Features¶

    • New encryption features in Percona Server for MySQL 5.7 will be ported forward to Percona Server for MySQL 8.0

    • Adding back in column compression with custom data dictionaries and expanded fast index creation.

    Contact us

    For free technical help, visit the Percona Community Forum.

    To report bugs or submit feature requests, open a JIRA ticket.

    For paid support and managed or consulting services , contact Percona Sales.


    Last update: 2023-01-12
    Back to top
    Percona LLC and/or its affiliates, © 2023
    Made with Material for MkDocs

    Cookie consent

    We use cookies to recognize your repeated visits and preferences, as well as to measure the effectiveness of our documentation and whether users find what they're searching for. With your consent, you're helping us to make our documentation better.