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15.3.3.3. MySQL Cluster SQL Node and API Node Configuration Parameters

The following table provides information about parameters used in the [SQL] and [api] sections of a config.ini file for configuring MySQL Cluster SQL nodes and API nodes. For detailed descriptions and other additional information about each of these parameters, see Section 15.3.2.6, “Defining SQL and Other API Nodes in a MySQL Cluster”.

Note

For a discussion of MySQL server options for MySQL Cluster, see Section 15.3.4.2, “mysqld Command Options for MySQL Cluster”; for information about MySQL server system variables relating to MySQL Cluster, see Section 15.3.4.3, “MySQL Cluster System Variables”.

Table 15.3. API Node Configuration Parameters

Name Type/Units Default Min Value Max Value Restart Type
ArbitrationDelay milliseconds     4G N
ArbitrationRank 0-2     2 N
BatchByteSize bytes 32K 1024 1M N
BatchSize records 64 1 992 N
ExecuteOnComputer name       S
HostName name or IP       S
Id unsigned   1 63 N
MaxScanBatchSize bytes 256K 32K 16M N

Note

To add new SQL or API nodes to the configuration of a running MySQL Cluster, it is necessary to perform a rolling restart of all cluster nodes after adding new [mysqld] or [api] sections to the config.ini file (or files, if you are using more than one management server). This must be done before the new SQL or API nodes can connect to the cluster.

It is not necessary to perform any restart of the cluster if new SQL or API nodes can employ previously unused API slots in the cluster configuration to connect to the cluster.