16.6.5.4. Configuration for Cluster Backup
Four configuration parameters are essential for backup:
-
BackupDataBufferSize
The amount of memory used to buffer data before it is
written to disk.
-
BackupLogBufferSize
The amount of memory used to buffer log records before
these are written to disk.
-
BackupMemory
The total memory allocated in a database node for backups.
This should be the sum of the memory allocated for the
backup data buffer and the backup log buffer.
-
BackupWriteSize
The size of blocks written to disk. This applies for both
the backup data buffer and the backup log buffer.
More detailed information about these parameters can be found
in Section 16.4, “MySQL Cluster Configuration”.
