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Based on Percona Server 5.6.15-63.0 including all the bug fixes in it, Galera Replicator 3.4 and on Codership wsrep API 25.5 is now the current General Availability release. All of Percona‘s software is open-source and free, all the details of the release can be found in the 5.6.15-25.5 milestone at Launchpad.
wsrep patch did not allow server to start with query cache enabled. This restriction and check have been removed now and query cache can be fully enabled from configuration file.
New SST options have been implemented: inno-backup-opts, inno-apply-opts, inno-move-opts which pass options to backup, apply and move stages of innobackupex.
The joiner would wait and not fall back to choosing other potential donor nodes (not listed in wsrep_sst_donor) by their state. This happened even when comma was added at the end. This fixes it for that particular case.
Initial configurable timeout, of 100 seconds, to receive a first packet via SST has been implemented, so that if donor dies somewhere in between, joiner doesn’t hang. Timeout can be configured with the sst-initial-timeout variable.
Replication of partition tables without binlogging enabled failed, partition truncation didn’t work because of lack of TO isolation there. Bug fixed #1219605.
Boostrapping a Node in a NON-PRIMARY state would lead to crash. Bug fixed #1286450.
New versions of xtrabackup SST scripts were ignoring --socket parameter passed by mysqld. Bug fixed #1289483.
Fixed the clang build issues that were happening during the Galera build. Bug fixed #1290462.
Fixed the issue with wsrep_slave_threads wherein if the number of slave threads was changed before closing threads from an earlier change, it could increase the total number of threads beyond value specified in wsrep_slave_threads.
Presence of /tmp/test directory and an empty test database caused Percona XtraBackup to fail, causing SST to fail. This is an Percona XtraBackup issue. But, this has been fixed in PXC’s xtrabackup SST separately by using unique temporary directories with Percona XtraBackup. Bug fixed #1294760.
After installing the auth_socket plugin any local user might get root access to the server. If you’re using this plugin upgrade is advised. This is a regression, introduced in Percona Server 5.6.11-60.3. Bug fixed #1289599
We did our best to eliminate bugs and problems during the testing release, but this is a software, so bugs are expected. If you encounter them, please report them to our bug tracking system.