Percona XtraBackup 2.4.7¶
Percona is glad to announce the release of Percona XtraBackup 2.4.7 on April 17th 2017. Downloads are available from our download site and from apt and yum repositories.
This release is the current GA (Generally Available) stable release in the 2.4 series.
New Features¶
-
Percona XtraBackup now uses hardware accelerated implementation of
crc32
where it is supported. -
Percona XtraBackup has implemented new options:
xtrabackup --tables-exclude
andxtrabackup --databases-exclude
that work similar toxtrabackup --tables
andxtrabackup --databases
options, but exclude given names/paths from backup. -
The xbstream binary now supports parallel extraction with the
--parallel
option. -
The xbstream binary now supports following new options:
--decrypt
,--encrypt-threads
,--encrypt-key
, and--encrypt-key-file
. When--decrypt
option is specified xbstream will automatically decrypt encrypted files when extracting input stream. Either--encrypt-key
or--encrypt-key-file
options must be specified to provide encryption key, but not both. Option--encrypt-threads
specifies the number of worker threads doing the encryption, default is1
.
Bugs fixed¶
-
Backups were missing *.isl files for general tablespace. Bug fixed PXB-494.
-
In 5.7 MySQL changed default checksum algorithm to
crc32
, while xtrabackup was usinginnodb
. This caused xtrabackup to perform extra checksum calculations which were not needed. Bug fixed PXB-495. -
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 PXB-498.
-
xtrabackup --export
can now export tables that have more than 31 index. Bug fixed PXB-58. -
Unrecognized character \x01; marked by <-- HERE
message could be seen if backups were taken with the version check enabled. Bug fixed PXB-944.