Percona XtraDB Cluster 5.6.30-25.16 is now available

Percona is glad to announce the new release of Percona XtraDB Cluster 5.6 on June 10, 2016. Binaries are available from the downloads area or our software repositories.

Percona XtraDB Cluster 5.6.30-25.16 is now the current release, based on the following:

• Percona Server 5.6.30-76.3
• Galera Replication library 3.16
• Codership wsrep API version 25

All of Percona software is open-source and free, and all the details of the release can be found in the 5.6.30-25.16 milestone on Launchpad.

For more information about relevant Codership releases, see this announcement.

New Features:

• PXC now uses wsrep_desync_count introduced in Galera 3.16 by Codership, instead of the concept that was previously implemented by Percona. The following logic applies:

  • If a node is explicitly desynced, then implicitly desyncing a node using RSU/FTWRL is allowed.
  • If a node is implicitly desynced using RSU/FTWRL, then explicitly desyncing a node is blocked until implicit desync is complete.
  • If a node is explicitly desynced and then implicitly desycned using RSU/FTWRL, then any request for another implicit desync is blocked until the former implicit desync is complete.

Bugs Fixed:

• Changing wsrep_provider while the node is paused or desynced is not allowed.
• TOI now checks that a node is ready to process DDL and DML before starting execution, to prevent a node from crashing if it becomes non-primary.
• The wsrep_row_upd_check_foreign_constraints function now checks that fk-reference-table is open before marking it open.

Help us improve our software quality by reporting any bugs you encounter using our bug tracking system. As always, thanks for your continued support of Percona!