Percona XtraBackup 2.2.2-beta1

Percona is glad to announce the release of Percona XtraBackup 2.2.2-beta1 on May 8th 2014. Downloads are available from our download site here. This BETA release will be available in Debian experimental and CentOS testing repositories.

This is a BETA quality release and it is not intended for production. If you want a high quality, Generally Available release, the current Stable version should be used (currently 2.1.9 in the 2.1 series at the time of writing).

New Features

Percona XtraBackup has now been rebased on MySQL 5.6.17.

Percona XtraBackup package is now available for Ubuntu 14.04.

Bugs Fixed

Percona XtraBackup couldn’t be built with Bison 3.0. Bug fixed #1262439.

The xtrabackup binaries now recognize a new my.cnf option, open_files_limit. The effect is the same as for the server: it changes the maximum number of file descriptors available to the xtrabackup process. The actual limit depends on the platform and ulimit settings. Bug fixed #1183793.

If a remote InnoDB tablespace got CREATEd or ALTERed during the backup, an attempt to prepare such a backup later would lead to Percona XtraBackup crash. Bug fixed #1291299.

Code in both innobackupex and xtrabackup, that was supposed to make sure no child processes are left running in case innobackupex got killed or failed with an error, relied on the fact the SIGTERM and SIGINT signals were not blocked by the xtrabackup process. However, both SIGTERM and SIGINT might be blocked by the process that had invoked innobackupex, for example, by the Percona XtraDB Cluster server processes doing an SST, in which case they were also blocked by the xtrabackup process, since the signal mask is inherited by child processes. Fixed by replacing SIGTERM in innobackupex and SIGINT in xtrabackup auto-termination with SIGKILL. Bug fixed #1294782.

All of Percona’s software is open-source and free, all the details of the release can be found in the 2.2.2-beta1 milestone at Launchpad.

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