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<samba:parameter name="veto oplock files"
context="S"
type="string"
xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
<description>
<para>This parameter is only valid when the
<smbconfoption name="oplocks"/>
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
<smbconfoption name="veto files"/>
parameter.</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>
An example of use is:
<screen>
veto oplock files = /.*SEM/
</screen>
</para>
</description>
<value type="default"><comment>No files are vetoed for oplock grants</comment></value>
</samba:parameter>
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