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Percona Software for MySQL Documentation

ProxySQL 2.4.3 and ProxySQL admin tools (2022-08-31)

ProxySQL is a high-performance proxy for MySQL and MySQL-compatible database servers such as Percona Server for MySQL and MariaDB. It acts as an intermediary for client requests seeking resources from the database. ProxySQL was created for the database administrator as a solution for complex replication topology issues.

You can download the original ProxySQL from GitHub. The ProxySQL documentation provides information on installing and running ProxySQL.

The ProxySQL Admin (proxysql-admin) tool simplifies the configuration of Percona XtraDB Cluster nodes with ProxySQL. ProxySQL Admin 1.x.x requires custom Bash scripts to track the status of a Percona XtraDB Cluster. ProxySQL Admin 2.x.x supports Percona XtraDB Cluster without custom scripts.

The Percona Scheduler Admin (percona-scheduler-admin) tool can automatically perform a failover due to node failures, service degradation, or maintenance.

Note

Percona Scheduler admin has different features and capabilities than ProxySQL admin. Do not use the options from one tool in the other tool. Mixing the options may cause unintended results.

Release highlights

This release includes all features and bug fixes available in ProxySQL 2.4.3. The improvements and bug fixes introduced by ProxySQL and included in this release are:

  • Updated to OpenSSL 3.0.5
  • Added an error message, PMC-10003 about the invalid use of mysql-init-connect
  • Fixed the processing of escaped string delimiters for digests

For more information on these items and other improvements and bug fixes, see the ProxySQL 2.4.3 release notes.

Note

An upgrade from ProxySQL 1.x.x to ProxySQL 2.x.x requires the removal of the ProxySQL 1.x.x packages. You can upgrade to ProxySQL 2.x.x after completing the removal.

Bug fixes

  • psqladm-402: The proxysql-status command did not work as intended. The script had a requirement to pass the .cnf file but this requirement is no longer needed.

  • psqladm-419: The CVE-2021-38561 was found in a library used by pxc_scheduler_handler. The appropriate patch was applied.

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Last update: 2024-11-20