- 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 kernel block is responsible for the handling of internal
triggers and unique indexes. TRIX, like
DBUTIL, is a utility block containing many
helper functions for building indexes and handling signals
between nodes. It is found in the directory
storage/ndb/src/kernel/blocks/trix, and
includes these files:
Trix.hpp. Defines theTrixclass, along with structures representing subscription data and records (for communicating withSUMA) and node data and ists (needed when communicating with remoteTRIXblocks).Trix.cpp. ImplementsTrixclass methods, including those necessary for taking appropriate action in the event of node failures.
This block is implemented as the Trix class,
defined in
storage/ndb/src/kernel/blocks/trix/Trix.hpp.
