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MySQL 5.7 Reference Manual  /  ...  /  Options, Variables, and Parameters Added, Deprecated or Removed in NDB 7.5

20.1.5.1 Options, Variables, and Parameters Added, Deprecated or Removed in NDB 7.5

The next few sections contain information about NDB node configuration parameters and NDB-specific mysqld options and variables that have been added to, deprecated in, or removed from NDB 7.5.

Node Configuration Parameters Introduced in NDB 7.5

The following node configuration parameters have been added in NDB 7.5.

  • ApiVerbose: Enable NDB API debugging; for NDB development. Added in NDB 7.5.2.

Node Configuration Parameters Deprecated in NDB 7.5

The following node configuration parameters have been deprecated in NDB 7.5.

  • ExecuteOnComputer: String referencing earlier defined COMPUTER. Deprecated as of NDB 7.5.0.

  • ExecuteOnComputer: String referencing earlier defined COMPUTER. Deprecated as of NDB 7.5.0.

  • ExecuteOnComputer: String referencing earlier defined COMPUTER. Deprecated as of NDB 7.5.0.

Node Configuration Parameters Removed in NDB 7.5

The following node configuration parameters have been removed in NDB 7.5.

  • DiskCheckpointSpeed: Bytes allowed to be written by checkpoint, per second. Removed in NDB 7.5.0.

  • DiskCheckpointSpeedInRestart: Bytes allowed to be written by checkpoint during restart, per second. Removed in NDB 7.5.0.

  • Id: Number identifying data node. Now deprecated; use NodeId instead. Removed in NDB 7.5.0.

  • MaxNoOfSavedEvents: Not used. Removed in NDB 7.5.0.

  • PortNumber: Port used for SCI transporter. Removed in NDB 7.5.1.

  • PortNumber: Port used for SHM transporter. Removed in NDB 7.5.1.

  • PortNumber: Port used for TCP transporter. Removed in NDB 7.5.1.

  • ReservedSendBufferMemory: This parameter is present in NDB code but is not enabled. Removed in NDB 7.5.2.

MySQL Server Options and Variables Introduced in NDB 7.5

The following mysqld system variables, status variables, and options have been added in NDB 7.5.

  • Ndb_system_name: Configured cluster system name; empty if server not connected to NDB. Added in NDB 7.5.7.

  • ndb-allow-copying-alter-table: Set to OFF to keep ALTER TABLE from using copying operations on NDB tables. Added in NDB 7.5.0.

  • ndb-cluster-connection-pool-nodeids: Comma-separated list of node IDs for connections to cluster used by MySQL; number of nodes in list must match value set for --ndb-cluster-connection-pool. Added in NDB 7.5.0.

  • ndb-default-column-format: Use this value (FIXED or DYNAMIC) by default for COLUMN_FORMAT and ROW_FORMAT options when creating or adding table columns. Added in NDB 7.5.1.

  • ndb-log-fail-terminate: Terminate mysqld process if complete logging of all found row events is not possible. Added in NDB 7.5.18.

  • ndb-log-update-minimal: Log updates in minimal format. Added in NDB 7.5.7.

  • ndb_data_node_neighbour: Specifies cluster data node "closest" to this MySQL Server, for transaction hinting and fully replicated tables. Added in NDB 7.5.2.

  • ndb_default_column_format: Sets default row format and column format (FIXED or DYNAMIC) used for new NDB tables. Added in NDB 7.5.1.

  • ndb_read_backup: Enable read from any replica for all NDB tables; use NDB_TABLE=READ_BACKUP={0|1} with CREATE TABLE or ALTER TABLE to enable or disable for individual NDB tables. Added in NDB 7.5.2.

MySQL Server Options and Variables Deprecated in NDB 7.5

No system variables, status variables, or options have been deprecated in NDB 7.5.

MySQL Server Options and Variables Removed in NDB 7.5

No system variables, status variables, or options have been removed from NDB 7.5.