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Data nodes. The only executable required on a data node host isthe data node binary ndbd or

ndbmtd. (mysqld, for example, does not have to be present on the host machinę.) By default, when

building from source, this file is placed in the directory /usr/local/mysql/bin. For installing on

multiple data node hosts, only ndbd or ndbmtd need be copied to the other host machinę or machines.

(This assumes that all data node hosts use the same architecture and operating system; otherwise you

may need to compile separately for each different platform.) The data node binary need not be in any

particular location on the host's file system, as long as the location is known.

When compiling MySQL Cluster from source, no special options are required for building multithreaded

data node binaries. Configuring the build with NDB storage engine support causes

ndbmtd to

be built automatically; make install places the ndbmtd binary in the installation

bin directory along

with mysqld, ndbd, and ndb_mgm.