This release is the current GA (Generally Available) stable release in the 2.4 series.
Percona XtraBackup now uses hardware accelerated implementation of
crc32where it is supported.
Percona XtraBackup has implemented new options:
xtrabackup --databases-excludethat work similar to
xtrabackup --databasesoptions, but exclude given names/paths from backup.
The xbstream binary now supports parallel extraction with the
The xbstream binary now supports following new options:
--decryptoption is specified xbstream will automatically decrypt encrypted files when extracting input stream. Either
--encrypt-key-fileoptions must be specified to provide encryption key, but not both. Option
--encrypt-threadsspecifies the number of worker threads doing the encryption, default is
Backups were missing
*.islfiles for general tablespace. Bug fixed #1658692.
In 5.7 MySQL changed default checksum algorithm to
crc32, while xtrabackup was using
innodb. This caused xtrabackup to perform extra checksum calculations which were not needed. Bug fixed #1664405.
For system tablespaces consisting of multiple files xtrabackup updated LSN only in first file. This caused MySQL versions lower than 5.7 to fail on startup. Bug fixed #1669592.
Unrecognized character \x01; marked by <-- HEREmessage could be seen if backups were taken with the version check enabled. Bug fixed #1651978.
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