(mysql.info.gz) MySQL Cluster Backup Configuration

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 16.5.4.4 Configuration for Cluster Backup
 .........................................
 
 There are four configuration parameters for backup:
 
 *BackupDataBufferSize*
      Amount of memory (out of the total memory) used to buffer data
      before it is written to disk.
 
 *BackupLogBufferSize*
      Amount of memory (out of the total memory) used to buffer log
      records before these are written to disk.
 
 *BackupMemory*
      Total memory allocated in a database node for backups.  This
      should be the sum of the memory allocated for the two buffers.
 
 *BackupWriteSize*
      Size of blocks written to disk.  This applies for both the data
      buffer and the log buffer.
 

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