- 6.4 NDB Kernel Blocks
- 6.4.1 The BACKUP Block
- 6.4.2 The CMVMI Block
- 6.4.3 The DBACC Block
- 6.4.4 The DBDICT Block
- 6.4.5 The DBDIH Block
- 6.4.6 DBLQH Block
- 6.4.7 The DBTC Block
- 6.4.8 The DBTUP Block
- 6.4.9 DBTUX Block
- 6.4.10 The DBUTIL Block
- 6.4.11 The LGMAN Block
- 6.4.12 The NDBCNTR Block
- 6.4.13 The NDBFS Block
- 6.4.14 The PGMAN Block
- 6.4.15 The QMGR Block
- 6.4.16 The RESTORE Block
- 6.4.17 The SUMA Block
- 6.4.18 The TSMAN Block
- 6.4.19 The TRIX Block
This block is responsible for handling online backups and
checkpoints. It is found in
storage/ndb/src/kernel/blocks/backup/, and
contains the following files:
Backup.cpp. Defines methods for node signal handing; also provides output methods for backup status messages to user.BackupFormat.hpp. Defines the formats used for backup data,.CTL, and log files.Backup.hpp. Defines theBackupclass.BackupInit.cpp. ActualBackupclass constructor is found here.Backup.txt. Contains a backup signal diagram (text format). Somewhat dated (from 2003), but still potenitally useful to understanding the sequence of events that is followed during backups.FsBuffer.hpp. Defines theFsBufferclass, which implements the circular data buffer that is used (together with the NDB file system) for reading and writing backup data and logs.read.cpp. Contains some utility functions for reading log and checkpoint files toSTDOUT.
