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Initial Configuration of MySQL Cluster
In this section, we discuss manuał configuration of an installed MySQL Cluster by creating and editing configuration files.
MySQL Cluster NDB 7.3 also provides a GUI installer which can be used to perform the configuration
without the need to edit text files in a separate application. For morę information, see Section 17.2.1,
“The MySQL Cluster Auto-lnstaller".
For our four-node, four-host MySQL Cluster (see Cluster nodes and host computers), it is necessary to
write four configuration files, one per node host.
• Each data node or SQL node requires a my. cnf file that provides two pieces of information: a
connecłion string thattells the node where to find the management node, and a linę telling the
MySQL server on this host (the machinę hosting the data node) to enable the
NDBCLUSTER storage engine.
For morę information on connection strings, see Section 17.3.2.3, "MySQL Cluster
Connection
Strings".
• The management node needs a config. ini file telling it how many replicas to maintain, how much
memory to allocate for data and indexes on each data node, where to find the data nodes, vtfiere to
save data to disk on each data node, and where to find any SQL nodes.
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