<div id="docs-body">
 <div class="section">
  <div class="titlepage">
   <div>
    <div>
     <h2 class="title">
      <a name="mysql-cluster-configuration">
      </a>
      25.4 Configuration of NDB Cluster
     </h2>
    </div>
   </div>
  </div>
  <div class="toc">
   <dl class="toc">
    <dt>
     <span class="section">
      <a href="mysql-cluster-quick.html">
       25.4.1 Quick Test Setup of NDB Cluster
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="mysql-cluster-configuration-overview.html">
       25.4.2 Overview of NDB Cluster Configuration Parameters, Options, and Variables
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="mysql-cluster-config-file.html">
       25.4.3 NDB Cluster Configuration Files
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="mysql-cluster-interconnects.html">
       25.4.4 Using High-Speed Interconnects with NDB Cluster
      </a>
     </span>
    </dt>
   </dl>
  </div>
  <a class="indexterm" name="idm46045122025248">
  </a>
  <a class="indexterm" name="idm46045122024176">
  </a>
  <p>
   A MySQL server that is part of an NDB Cluster differs in one chief
    respect from a normal (nonclustered) MySQL server, in that it
    employs the
   <a class="link" href="mysql-cluster.html" title="Chapter 25 MySQL NDB Cluster 8.4">
    <code class="literal">
     NDB
    </code>
   </a>
   storage engine. This
    engine is also referred to sometimes as
   <a class="link" href="mysql-cluster.html" title="Chapter 25 MySQL NDB Cluster 8.4">
    <code class="literal">
     NDBCLUSTER
    </code>
   </a>
   , although
   <code class="literal">
    NDB
   </code>
   is preferred.
  </p>
  <p>
   To avoid unnecessary allocation of resources, the server is
    configured by default with the
   <a class="link" href="mysql-cluster.html" title="Chapter 25 MySQL NDB Cluster 8.4">
    <code class="literal">
     NDB
    </code>
   </a>
   storage engine disabled. To enable
   <a class="link" href="mysql-cluster.html" title="Chapter 25 MySQL NDB Cluster 8.4">
    <code class="literal">
     NDB
    </code>
   </a>
   ,
    you must modify the server's
   <code class="filename">
    my.cnf
   </code>
   configuration file, or start the server with the
   <a class="link" href="mysql-cluster-options-variables.html#option_mysqld_ndbcluster">
    <code class="option">
     --ndbcluster
    </code>
   </a>
   option.
  </p>
  <p>
   This MySQL server is a part of the cluster, so it also must know how
    to access a management node to obtain the cluster configuration
    data. The default behavior is to look for the management node on
   <code class="literal">
    localhost
   </code>
   . However, should you need to specify
    that its location is elsewhere, this can be done in
   <code class="filename">
    my.cnf
   </code>
   , or with the
   <a class="link" href="mysql.html" title="6.5.1 mysql — The MySQL Command-Line Client">
    <span class="command">
     <strong>
      mysql
     </strong>
    </span>
   </a>
   client. Before the
   <a class="link" href="mysql-cluster.html" title="Chapter 25 MySQL NDB Cluster 8.4">
    <code class="literal">
     NDB
    </code>
   </a>
   storage engine
    can be used, at least one management node must be operational, as
    well as any desired data nodes.
  </p>
  <p>
   For more information about
   <a class="link" href="mysql-cluster-options-variables.html#option_mysqld_ndbcluster">
    <code class="option">
     --ndbcluster
    </code>
   </a>
   and other
   <a class="link" href="mysqld.html" title="6.3.1 mysqld — The MySQL Server">
    <span class="command">
     <strong>
      mysqld
     </strong>
    </span>
   </a>
   options specific to NDB Cluster, see
   <a class="xref" href="mysql-cluster-options-variables.html#mysql-cluster-program-options-mysqld" title="25.4.3.9.1 MySQL Server Options for NDB Cluster">
    Section 25.4.3.9.1, “MySQL Server Options for NDB Cluster”
   </a>
   .
  </p>
  <p>
   For general information about installing NDB Cluster, see
   <a class="xref" href="mysql-cluster-installation.html" title="25.3 NDB Cluster Installation">
    Section 25.3, “NDB Cluster Installation”
   </a>
   .
  </p>
 </div>
 <br/>
</div>
