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<samba:parameter xmlns:samba="http://samba.org/common">
<term><anchor id="VETOOPLOCKFILES"/>veto oplock files (S)</term>
<listitem><para>This parameter is only valid when the <link linkend="OPLOCKS"><parameter moreinfo="none">oplocks</parameter></link>
parameter is turned on for a share. It allows the Samba administrator
to selectively turn off the granting of oplocks on selected files that
match a wildcarded list, similar to the wildcarded list used in the
<link linkend="VETOFILES"><parameter moreinfo="none">veto files</parameter></link>
parameter.</para>
<para>Default: <emphasis>No files are vetoed for oplock
grants</emphasis></para>
<para>You might want to do this on files that you know will
be heavily contended for by clients. A good example of this
is in the NetBench SMB benchmark program, which causes heavy
client contention for files ending in <filename moreinfo="none">.SEM</filename>.
To cause Samba not to grant oplocks on these files you would use
the line (either in the [global] section or in the section for
the particular NetBench share :</para>
<para>Example: <command moreinfo="none">veto oplock files = /*.SEM/
</command></para>
</listitem>
</samba:parameter>
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