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2.9 倾倒 20

代码

20

象征

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内核块

BACKUP

描述。  打印 BackupDataBufferSizeBackupLogBufferSizeBackupWriteSize和 的值BackupMaxWriteSize

示例输出。 

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

附加信息。  此命令也可用于设置这些参数,如本例所示:

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
警告

您必须在所有节点上将这些参数中的每一个设置为相同的值;否则,随后发出 START BACKUP命令会使集群崩溃。