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MySQL Cluster API Developer Guide :: 6 MySQL Cluster Internals :: 6.2 DUMP Commands :: 6.2.1 DUMP Codes 1 to 999 :: 6.2.1.8 DUMP 20

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6.2.1.8. `DUMP 20`

Code	Symbol	Kernel Block(s)
20	`---`	`BACKUP`

Description. Prints the values of BackupDataBufferSize, BackupLogBufferSize, BackupWriteSize, and BackupMaxWriteSize

Sample Output.

Node 2: Backup: data: 2097152 log: 2097152 min: 32768 max: 262144

Additional Information. This command can also be used to set these parameters, as in this example:

ndb_mgm> 2 DUMP 20 3 3 64 512
Sending dump signal with data:
0x00000014 0x00000003 0x00000003 0x00000040 0x00000200

Node 2: Backup: data: 3145728 log: 3145728 min: 65536 max: 524288

Warning

You must set each of these parameters to the same value on all nodes; otherwise, subsequent issuing of a START BACKUP command crashes the cluster.

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6.2.1.8. DUMP 20

6.2.1.8. `DUMP 20`