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<h2 class="title" style="clear: both"><a id="set_mp_mmapsize_parameter"></a>set_mp_mmapsize</h2>
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<p>
Sets the maximum file size, in bytes, for a file to
be mapped into the process address space. If no value is specified, it defaults to 10MB.
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The syntax of this parameter in the <a href="../../programmer_reference/env_db_config.html#env_db_config.DB_CONFIG" class="olink">DB_CONFIG</a> file is a
single line with the string
<code class="literal">set_mp_mmapsize</code>, one or more whitespace
characters, and the size in bytes.
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<p>For more information, see <a class="xref" href="envset_mp_mmapsize.html" title="DbEnv::set_mp_mmapsize()">DbEnv::set_mp_mmapsize()</a>. </p>
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