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Percona XtraDB Cluster 5.7.14-26.17


This release is dedicated to the memory of Federico Goncalvez, our colleague with Percona’s Uruguayan team until his tragic death on September 6, 2016.

Fede, you are missed.

Percona is glad to announce the release of Percona XtraDB Cluster 5.7.14-26.17 on September 29, 2016. Binaries are available from the downloads area or from our software repositories.

Percona XtraDB Cluster 5.7.14-26.17 is the first GA release in the 5.7 series, based on the following:

For information about the changes and new features introduced in Percona Server 5.7, see Changed in Percona Server 5.7.

New Features

This is a list of the most important features introduced in Percona XtraDB Cluster 5.7 compared to version 5.6

  • PXC Strict Mode saves your workload from experimental and unsupported features.

  • Support for monitoring Galera Library instruments and other wsrep instruments as part of Performance Schema.

  • Support for encrypted tablespaces in Multi-Master Topology, which enables Percona XtraDB Cluster to wire encrypted tablespace to new booting node.

  • Compatibility with ProxySQL, including a quick configuration script.

  • Support for monitoring Percona XtraDB Cluster nodes using Percona Monitoring and Management

  • More stable and robust operation with MySQL and Percona Server version 5.7.14, as well as Galera 3.17 compatibility. Includes all upstream bug fixes, improved logging and more.

  • Simplified packaging for Percona XtraDB Cluster to a single package that installs everything it needs, including the Galera library.

  • Support for latest XtraBackup with enhanced security checks.

Bug Fixes

  • Fixed crash when a local transaction (such as EXPLAIN or SHOW) is interrupted by a replicated transaction with higher priopiry (like ALTER that changes table structure and can thus affect the result of the local transaction).

  • Fixed DONOR node getting stuck in Joined state after successful SST.

  • Fixed error message when altering non-existent table with pxc-strict-mode enabled.

  • Fixed path to directory in percona-xtradb-cluster-shared.conf.

  • Fixed setting of seqno in grastate.dat to -1 on clean shutdown.

  • Fixed failure of asynchronous TOI actions (like DROP) for non-primary nodes.

  • Fixed replacing of my.cnf during upgrade from 5.6 to 5.7.

Security Fixes

  • CVE-2016-6662

  • CVE-2016-6663

  • CVE-2016-6664

For more information, see

Other Improvements

Added support of defaults-group-suffix for SST scripts.