2.9 DUMP 20

Code

20

Symbol

---

Kernel Block

BACKUP

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

Sample Output. 

2014-10-13 21:04:13 [MgmtSrvr] INFO     -- Node 5: Backup: data: 17039872 log: 17039872 min: 262144 max: 1048576
2014-10-13 21:04:13 [MgmtSrvr] INFO     -- Node 6: Backup: data: 17039872 log: 17039872 min: 262144 max: 1048576

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

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

...

2014-10-13 21:05:52 [MgmtSrvr] INFO     -- Node 5: Backup: data: 3145728 log: 3145728 min: 65536 max: 524288
2014-10-13 21:05:52 [MgmtSrvr] INFO     -- Node 6: 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.