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<samba:parameter name="change notify timeout"
type="integer"
context="S"
developer="1"
xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
<description>
<para>This SMB allows a client to tell a server to
"watch" a particular directory for any changes and only reply to
the SMB request when a change has occurred. Such constant scanning of
a directory is expensive under UNIX, hence an <citerefentry><refentrytitle>smbd</refentrytitle>
<manvolnum>8</manvolnum></citerefentry> daemon only performs such a scan
on each requested directory once every <parameter moreinfo="none">change notify
timeout</parameter> seconds. Note that in 3.0.23 this has been changed to a
per-share parameter and setting this to zero prevents any change notify directory
scans completely on a share. This is to allow this paramter to be set to zero on
shares configured for very large directories, where a Windows client will re-scan
the entire directory after every delete operation (when deleting many files) due to
the change notify triggering. This is an extremely expensive operation on some
systems.</para>
</description>
<value type="default">60</value>
<value type="example">300<comment>Would change the scan time to every 5 minutes.</comment></value>
</samba:parameter>
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