This block is responsible for handling online backups and
checkpoints. It is found in
contains the following files:
Backup.cpp: Defines methods for node
signal handling; also provides output methods for backup
status messages to user.
BackupFormat.hpp: Defines the formats
used for backup data,
.CTL, and log
Backup.hpp: Defines the
Backup class constructor is found here.
Backup.txt: Contains a backup signal
diagram (text format). Somewhat dated (from 2003), but still
potentially useful for understanding the sequence of events
that is followed during backups.
FsBuffer.hpp: Defines the
FsBuffer class, 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 to