- 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 is a cluster management block that handles block
initialisation and configuration. During the data node startup
process, it takes over from the QMGR block
and continues the process. It also assist with graceful
(planned) shutdowns of data nodes. Ths block is located in
storage/ndb/src/kernel/blocks/ndbcntr, and
contains these files:
Ndbcntr.hpp. Defines theNdbcntrclass used to implement cluster management functions.NdbcntrInit.cpp. Initializers forNdbcntrdata and records.NdbcntrMain.cpp. Implements methods used for starts, restarts, and reading of configuration data.NdbcntrSysTable.cpp.NDBCNTRcreates and initializes system tables on initial system start. The tables are defined in static structs in this file.
