- 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 provides internal interfaces to transaction and data
operations, performing essential operations on signals passed
between nodes. This block implements transactional services
which can then be used by other blocks. It is also used in
building online indexes, and is found in
storage/ndb/src/kernel/blocks/dbutil, which
includes these files:
DbUtil.cpp. ImplementsDbutilclass methodsDbUtil.hpp. Defines theDbutilclass, used to provide transactional services.DbUtil.txt. Implementation notes on utility protocols implemented byDBUTIL.
Among the duties performed by this block is the maintenance of sequences for backup IDs and other distributed identifiers.
