Announcing Percona XtraBackup 1.9.1
Percona is glad to announce the second beta release towards Percona XtraBackup 2.0! We call this version 1.9.1 as we are using the 1.9.x version numbers for betas of 2.0 to clearly differentiate beta releases from the final 2.0 release. We do not recommend using Beta releases in production. Link to BETA version and Release notes.
If you are looking for a stable release for production use, check out our latest stable release (which was 1.6.5 at the time of writing).
This beta adds some really exciting features and bug fixes.
New features include:
- Backup and restore of LRU dump.
For servers that support dump and restore of the XtraDB buffer pool (LRU), namely Percona Server, this will enable a server restored from backup to give excellent performance without a lengthy “warm up” time. If provisioning a slave, this means your new slave will end up with a warmed up buffer pool to mimic that of the master.
- Streaming incremental backups.
It is now possible to stream incremental backups, lifting a limitation from previous versions where it was only possible to stream full backups.
- Parallel compression
Percona XtraBackup can now use multiple CPUs to perform a compressed backup, significantly reducing the amount of time needed.
- Parallel compression (‘
--compress-threads‘) can be used together with parallel file copying (‘
--parallel‘). For example, ‘
--parallel=4 --compress --compress-threads=2‘ will create 4 IO threads that will read the data and pipe it to 2 compression threads.
- New streaming format to work with parallel compression.
The xbstream format is now supported along with the tar format. The new xbstream format works with parallel compression to (without caching) stream several compressed files at once.
tar4ibd functionality is replaced by functionality in the xtrabackup binary itself.
xbstream utility is added
This utility has a tar like interface to the xbstream format.