The 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 DUMP Codes 1 to 999
- 6.2.1.1 DUMP 1
- 6.2.1.2 DUMP 13
- 6.2.1.3 DUMP 14
- 6.2.1.4 DUMP 15
- 6.2.1.5 DUMP 16
- 6.2.1.6 DUMP 17
- 6.2.1.7 DUMP 18
- 6.2.1.8 DUMP 20
- 6.2.1.9 DUMP 21
- 6.2.1.10 DUMP 22
- 6.2.1.11 DUMP 23
- 6.2.1.12 DUMP 24
- 6.2.1.13 DUMP 25
- 6.2.1.14 DUMP 70
- 6.2.1.15 DUMP 400
- 6.2.1.16 DUMP 401
- 6.2.1.17 DUMP 402
- 6.2.1.18 DUMP 403
- 6.2.1.19 DUMP 404
| Code | Symbol | Kernel Block(s) |
| 20 | --- |
BACKUP |
Description.
Prints values of BackupDataBufferSize,
BackupLogBufferSize,
BackupWriteSize, and
BackupMaxWriteSize
Sample Output.
Node 2: Backup: data: 2097152 log: 2097152 min: 32768 max: 262144
Additional Information. Can also be used to set these parameters, for 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.
